You can buy a Weize Battery here (affiliate link): www.weizeus.com/collections/weize-lifepo4-battery-lithium-phosphate-li-fe-po4-cells?ref=WILLPROWSE 12V LiFePO4 that I recommend you buy instead: www.mobile-solarpower.com/lithium-batteries.html *Does off-grid solar confuse you?* Check out my DIY friendly website for solar system packages and product recommendations, and so much more! www.mobile-solarpower.com *Join our DIY solar community!* #1 largest solar forum on the internet for beginners and professionals alike: www.diysolarforum.com Check out my best-selling, beginner-friendly 12V off-grid solar book (affiliate link): amzn.to/2Aj4dX4 If DIY is not for you, but you love solar and need an offgrid system, check out EnergyPal! They will price out a system and get your house offgrid: energypal.com/diysolar/ *My Solar Equipment Recommendations (Constantly updated! Check here first):* 12V/48V Lithium Batteries: www.mobile-solarpower.com/solar-batteries.html Solar System Component Directory: www.mobile-solarpower.com/solarcomponents.html Complete 48V System Blueprint: www.mobile-solarpower.com/48v-complete-system-blueprint.html Plug-N-Play Systems: www.mobile-solarpower.com/full-size-systems.html Complete 48V System Kits: www.mobile-solarpower.com/complete-48v-solar-kits.html DIY Friendly Air Conditioner/ Heat Pumps: www.mobile-solarpower.com/solar-friendly-air-conditioners.html *My Favorite Online Stores for DIY Solar Products:* *Signature Solar* Offgrid One-Stop-Shop. Best Value 48V LiFePO4, Victron and Offgrid Specific Heat Pumps: www.signaturesolar.com/?ref=h-cvbzfahsek *Current Connected* SOK, Victron, Mr.Cool Heatpumps and High Quality Components: currentconnected.com/?ref=wp *Ecoflow Delta* My favorite plug-n-play solar generator: us.ecoflow.com/?aff=7 *AmpereTime* Cheapest 12V batteries around: amperetime.com/products/ampere-time-12v-100ah-lithium-lifepo4-battery?ref=h-cvbzfahsek *Renogy* A classic 12V solar store that has been around for ages! renogy.sjv.io/n1VjXx *Rich Solar* Renogy's biggest competitor! Similar products, but at a better price: richsolar.com/?ref=h-cvbzfahsek *Battery Hookup* Cheap cell deals bit.ly/2mIxSqt 5% off code: diysolar
American Engineers - Good ideas, Good execution. Chinese Engineers - Good ideas, bad executions. American products - Good warranties Chinese products - Bad warranties. That is the logic now a days. Cheap doesn't mean good quality. You cannot have the best of both worlds.
@@woodchippers_WestWingDimeBag It depends how you define junk...Quality control man. It is all about the quality control. What we are spending our money is on quality control. This is what I learn when I work as an apprentice in a machine shop. It is all about the quality control. Sometimes cheap products have none of them.
Will, is it possible to run a well water pump(220V) for short periods of time off of an all-electric generator of some kind that can then be used for other gizmos the rest of the time, or are dedicated "solar well pumps" a better option. I can get electric from the street, but would like to try an alternative, at least for a bit. Thanks. Cheers.
I love the fact you are not promoting any single brand out here! I am a loyal subscriber because of your honesty and dedication to give the best information to your subscribers. the internet nowadays is full of crooks and sellers who get paid to promote some crappy stuff and pay for reviews instead of improving the quality of their product. I applaud you for being an honorable RUclipsr and not selling out like the rest.
We bought the Ampere Time, 2, 200ah. We bought them after your review. Knowing that the batteries would be stored indoors, and temp controlled. It’s been over 18 months, and I am loving them! We have never gone this long boondocking, without the generator. We are on day 45 without the use of the generator.
@@izzyizzm8761 I think I’m resting at 13.5. I have a Victron system supporting the batteries. A smart shunt, a 100/50 charge controller, and 820w of solar. We have been in the desert in Arizona, then moved up here to Lake Mead. I only went down to 12.06, 5 days ago, when we had clouds all day. I thought I would not have any battery power when I woke up. I didn’t even sleep with my cpap, I was afraid we would run out of power. But the next day, the was shinning. So I pulled out the 140w portable solar panel, shut off the 110v fridge, and shut off the inverter, for the day. We made up to 80% of power, and the day after, it topped us off. Since then, it’s been at float charge by 11am
Hi Will, this type of battery are still the best option for small boats and sailboat, where space is tight and builders create spaces only for this size of battery. So keep bringing them to your channel. It is always a good reference to have them tested and known what the community think about them.
@2 B Tesla??? Dude you have been watching FAKE news. Now if you had said Chevy you'd be factual. Google "Tesla over a cliff", briefly a Tesla in Comyfornia was driven off a cliff (by a suicidal man) and crashed 250 feet down on the rock below. The family of 4 survived and the car did NOT catch fire!!!!
You should promote your solar book . It has helped me immensely . I have purchased copies for people that wanted to get started and were intimidated . Thank you for all your time and energy to help us .
You just helped me realize why, when showing off my LiFePO4 collection, and bragging to others about why they are the best thing since microwave ovens,.....they don't get it.
I picked these up after watching your video last year, I used 3 of them in parallel for my camper solar/upgrade build - so far it's been fabulous, 300ah paired with 600w of solar is keeping things charged, and lets me run the Starlink the entire time we're out, which means working remote is stellar. Thanks Will! Your vids are super helpful and are great info that's easy to digest
After your review of Zoom Batteries (now Redodo) a year ago, I purchased eight 100amh and five 200amh for my 50ft long keystone 5th wheel with 6200watt HQST solar panels on the roof...and thus far no problems :) Im running several Freedom X 3000 inverters, and alot of EPEVER controllers (again after your reviews). My system is sectioned into 3 systems (living/main, kitchen, and bedroom. I spent more money going this way, but any part of my system can go down, and Im still powered up fine! I run my dometic ac unit all summer and a large fridge and microwave :) Ive had several friends with alot of long term issues with Victron stuff, so Im glad in the end I went with the brands I did. Thank you for your product reviews and helping me make those choices! Love to hear more about heating options using solar!!!
I have 3 -200ah batteries in my RV for a couple of months and are working great. Low temp has worked correctly stopping charging when below 32 degrees.
[edit] Why would anyone buy these $300 batteries? Very simple - people buy the “small” batteries because they do not need 400Ah of capacity! If you only need 100-200Ah of capacity and you don’t have an unlimited budget, $300-600 hurts a lot less than $1500! Your older, original followers often have smaller off-grid system needs…. vs your channel’s current whole house systems focus. Thanks for coming back to small system earth with this update!
I bought Chins batteries for my last RV (your review was helpful) but had to rig my own low temp protection circuit. For my new RV I'm getting the Weize 300Ah model. I looked at the server rack battery, but it was 33% more power for 50% more in price, so for me it wasn't the best solution. Keep up the good work, your reviews are always enlightening and entertaining.
Thank you for still reviewing the "smaller" stuff. Most of my use cases are portable operations, so taking anywhere form 100 to 200 watts of solar panels and a single 12 volt battery (20AH to 100Ah) out in a field and have it run for 12 to 24 hours.
Last year I upgraded my OffGrid, RV system, and I used the Chins 300 amphr smart batteries. I put two of them in parallel. So far they’ve been working fantastic.
Some of the reasons for buying the smaller 100 ah battery are for physical handling capability of the assembler. I’m very limited in the amount of weight I’m allowed to lift due to a spinal injury. So I’m looking to keep individual component weight down. Thus for people with limited physical ability and financial resources these tend to make sense.
I have 2 of these batteries in my Tiny camper and they work great. By the way I found mine on sale for $250 each. Great deal and I wish I had purchased 2 more.
I appreciate you revisiting this battery. IN the last 18 months I purchased 3 Chins 12v 100Ah batteries based on yours and others' reviews. I understand that they changed their cells as well. Some have pouch cells now. I would love to get an SOK but the price point is a little high for me.
If these are suitable for marine use, they'll be purchased one at a time. Just a reminder that everyone doesn't need 6 or 8 batteries at a time. Thank you for your world's best reviews!!!
Loving my Chins, 12V, 520AH bank. Cycling flawlessly for almost a year now. Using a continuous, solid copper busbar across the terminals instead of cables
Hey Will, I bought one of these batteries about 6 months ago for my RV based on your first Weize video. I liked the quailty of the battery, the low temp protection and the great price. Battery has been good. I needed to replace my golf cart batteries so decided the Weize 100ah 12V would be a good choice. I bought three of them and run them in series for 36V. They do work fine but they do have an issue with the BMS shutting down current flow if I demand full output from the cart. It's rare that it happens so I'll live with it. Now that I saw you second video I'm second guessing my choice. Thanks for all the great info and videos.
I bought one a little over a year ago on your recommendation. I'm using it in a van. It is kept charged using two 100 watt solar panels through a 20 amp Rich Solar charge controller. So far I have had no problems with it. It runs a 12v refrigerator, interior lights, a 1500w inverter, a water pump and charging ports and 12v accessories.
I bought this battery back when you first reviewed it, still works well. I bought 2 of the Ampere Time and liked them so I bought another 2. Reason I went with 4 12v is that I can reconfigure my set up in any voltage from 12 to 48 volts. If one of the batteries fails as a 12v system I only lose 100ah, for the other voltages it is a bit awkward to make it work but I will not be without any power as if it was a single 48v battery.
I follow that logic. Plus you can ‘scale up’ over time for budgetary reasons. Or just add one if a situation change needs a bit more amp hours without dropping $1500. Or for the two 140Ah Btrpower cheapos I bought for $395ea- I didn’t want to commit to more than 1 battery at first in case the brand was a dud. I tried to buy a third but they are not listing a 12V 140Ah any longer which is annoying. I get what you’re saying.
Thanks Will for thr review. I recently bought 2 - 200 ah of a competitors cheap batteries. My reasoning to buy these instead of a server rack battery was size and fitment form my travel trailer. I needed 12volts and had no place for the server rack firm factor.
I have two Weize 100 amp hours LiFePO4 batteries purchased July 29, 2022. Inside my Escape 19 RV trailer they are working fine. They are paired with a 300ah Chins LiFePO4 Smart battery in an unheated storage box outside of the trailer. They were all purchased based on your videos and I've been happy with their performance.
We bought 2 of these off of Amazon after watching your previous videos. Your previous videos left a positive impression on us and we passed on the Chins. It seems you have done a 180 on these. We Have a small DIY Van Build we don't need 400 AH. Keeping fingers crossed. Great channel, very informative.
People use multiple 100Ah batteries because they start small and find out need to expand for the system to work as expected - like me, for example :) I ended up having 4 100Ah batteries and one 200Ah in a 12V system. All Redodo by the way. Nice video!
I got 2 200Ah Ampre Time Plus batteries. They're awesome and I love them! I'm a ham radio guy and last year for field day we ran 2 100W ham radios, 2 laptops, a 500W inverter for charging, 2 box fans, lights, you name it and we only really used 1 200Ah down to about 30%. This year, we're doing it again with both batteries and even more gear!
I bought 2 of these for my Class A to replace the AGMs that were killed by the wrong setting for low voltage cutoff on the inverter from the factory. So far they are working great.
Will I gotta tell ya that forum is awesome. And your famous in the off the grid community. Every time I go to recommend your channel to somebody local. They already know who you are. 😎
I built a 12v truck jib crane with the 36ah version of this battery. Im in pa and we went through very cold winter and guess what... its still working great. Used a powerwerx 50v / 14.6v mppt with a 36w panel and dang its great. 1500lbs pull power baby. Super cheap
As an electrical engineer, it is standard procedure to have at least three manufacturers for every major component in your bill of materials. This practice goes on in everything from your TV to your car. An Infamous example I can remember is when GM had a manufacturer sell them a boatload of defective stepper motors for their instrument clusters, and they mixed them in with all the stepper motors from all the other suppliers, next thing you know everyone's gauges are randomly failing prematurely, while the majority go to 300,000 miles without an issue. Another well-known example is Apple not using the same speed SSDs or processors in various devices leading to "identical" devices performing differently on benchmarks. That being said, the important thing here is the company determines the minimum acceptable standard, the minimum acceptable performance, for Apple I'd imagine it's minimum requirements are still better than some fly-by-night Chinese company, even if they're manufactured in a factored across the street from the Apple products.
I have had the Weize 300ah version for about 6 months and so far I love it. Same with Ampere Time 300ah. Also had Weize 100w panels that performed well.
I have two of these Weize batteries and they are working fine in my small homemade system. I don’t cycle them much as I keep them charged for a backup power supply. I have not had any issues with them.
I bought 2 of the 300 amp hour batteries from Amazon after your first tare down video on Weize batteries. Installed them in my camper. And so far no complaints from me.
We bought a couple of Ampertime 24v 100 amp hour batteries about 18 months ago after watching your review. I don’t follow rules to well so I have 4 Battleborn 12v 100 amp hour wired 2p 2s parallel with 3 Ampertime 24v 100 amp hour batteries. I started with the 4 and added 2 of the 24v a couple months later. I just added the 3rd 24v battery just a couple months ago. I now total 500 amp hours @ 24v. Charging with 30 cheap used 240w panels from Santan Solar (thank you for that tip too) and two Midnight Solar 150s limited to 90 amps each to keep the temps down. I did have them limited to 80 amps each before I installed a 10” fan plugged into a temperature relay to help stir the air a little. I even have a 12v 50 AH battery that I tie in to keep charged for my trolling motor or portable power supply with a small inverter. Breaking all the rules and having no issues. Thank you again for all that I have learned from you. You inspired me to take the plunge and go gridless!
The main advantages of the 100 amp hour batteries is current output for smaller systems and flexibility of where you can install them in a confined space like a boat or rv. If you aren't trying to run an air conditioner 200 to 300 amp hours is plenty of most rv and boat applications. With the 100 amp per battery you can still have a 2 or 3kw inventor and run loads like a microwave or induction hot plate. IMO the ideal for small systems is the 200 amp hour 200 amp bms from ampere time. Same current output as the 100 ah batteries with half the interbattery wiring and cheaper than even the budget eg4 server rack.
An advantage to going the DIY route, you know exactly whats in it and how its built. There's some peace of mind in that. Even if you are the only warranty you're going to get on it.
I've had one for a year now and it works great! I've even run it down until it auto shut-off and had to jump it with my car battery to get it to charge again but it still holds a charge like new.
I have 3 - 300AH 12v Weize batteries, going for about 3 years now. Working great. I got one for $1100, one for $1000 and one for $850. Sometimes the official website is cheaper price for purchase, sometimes Amazon is cheaper
The low temp really works. Got two of them for an camper about 6 months ago. They are solid so far. Not spending more than I have to. The 200 amp hr is $600 so even better deal.
I bought an 18Ah one of these last year and tested it on my channel, it started nose diving at 16Ah and was dead by 17Ah. I wouldn't buy another one of these if it was the last battery manufacturer on the planet.
I like how you are always updating the store with your current favorites . When I choose my installer , they will need to be familiar and adhere to this website, thanks Will
i love it first you say good then after cutting it open and testing you bash them. This is why i love your videos, you say it as it is. i wish i had you as a know friend. you could help me get over a electric problem. (knowledge thing. not physical deal). keep up the great work.
I bought a CHINS 300ah about a little over two years ago, the thing operates exactly as advertised still. I put it into a large camper van with a fairly large solar array, it limits charging to 60 amps, it has a hard cutoff at 200 amp draw within +/-3A. I learned a lot working with this, but the battery still works within spec at 99.5% original capacity I liked this so much, The next year, I bought the 400amp version for my folks home, who live off grid. better specs all around (charging/cutoff voltages that better match lead acid) no need for a quarterly drain down, even better relative short term current draw. The first battery showed up and was a dud, failed in a week, it retained capacity but couldn't deliver more than about 20 amps, I returned it for a new one, no issues since.
Great value Will !! Consistency: You have discovered something that has been a large difference in "retail" or "consumer" products vs professional grade. This is true for so many products. Suggestion: I think there is a lot of value in you doing more "consistency round-ups" to evaluate top brand products to see how much they change, over time. Perhaps once per year for a category.
I purchased 2 originally and had great luck with the batteries. I have recently purchased another battery from Weize and it has now been working everyday for the last three months. I now have 3 ampertime, 3 Weize and 1 Chinn and all are working well in small systems I am running.
I have 2 of this since 2021 so far so good I use them in series for a 24v to power a brushless trolling motor. If they gone down in quality i probably go with another brand 😊
Hi Will, Thank You for cutting open the first one and doing it yet again! The first video helped me a ton, it gave me the confidence to open the top on the one I bought in August of 2022. I put the battery into service shortly after receiving it without running any tests since I was not yet set up to do that. I ended up having some issues with the battery when charging and discharging in a solar setup I have with a couple 12v DC pumps. It seemed to disconnect during charging when it was close to but not at the cut off voltage. Then during discharging It would cut out earlier at a higher voltage than claimed. So I built a little setup to where I could discharge the battery at 20amps and keep track of the amp hours pulled. I then bought a Victron 5 amp charger which has the charge capacity built in with the app. With both I was getting a consistent 49-50ah discharge and charge. So I reached out to Weize through Amazon and to my surprise they responded to every email I sent and worked with me to finally refund some of my money to compensate for the 1/2 capacity battery. So once I received my refund I thought why don't I open it up and see if there is a cell disconnected (50ah 2p4s configuration) or something like that. What I determined was one of the paralleled 50ah packs was at a lower charge level then the other 3. I topped all of them off with a bench power supply and then ran my tests again. I now consistently get 98-99ah out of the battery. So not a perfect experience but I have to say Weize did respond usually within 24 hours and in the end refunded me some money so I am happy with it. My battery is built just like the battery you took apart in your first video, its unfortunate to see the lower build quality in the 2nd battery. Thanks again!
Will, was there any difference in the product or model numbers on the cases? Might suggest build differences. Thanks for all the battery teardowns and testing.
thanks for the revisit I just picket up 2 just because of your 1st review, just installed them last week changed out my converter, thank you for what you do SC
I think many of us, myself included, are buying batteries in this price range just to replace some paired 6 volt golfcart batteries in our campers or to get better runtime and lifetime use in running trolling motors on small boats. Just saving weight, compared to a 12 100ah LA battery, can make these worthwhile in many none solar uses. You're focused more on building solar systems, but a lot of people have no desire to do that, and a server rack battery would be useless to them. They just want a superior "drop in" replacement for the old LA technology and the peace of mind that comes with knowing it will last their lifetime if they are middle aged and use the battery in a typical cycling profile. I'm really glad that you are following up with these drop in batteries because there is a huge customer base out here, that aren't building power walls, that also need your input.
I bought one of these 10/2022 for $299. It failed in 5/2024. I used it for trolling motor. It sat for a few months and died. It would not restart. I tried all the jumper techniques to no avail. Weize tech support responded to emails and worked me through troubleshooting. It was a bit of a process, but they finally agreed that it is dead. They sent me a new battery and I still have the old. I wonder if I can repair and will cut the top off one of these days. Since then I have upgraded trolling motor and battery to 24 volt. I bought a Repower Flow 24 volt 100 Ahr battery in a suitcase. So far it is an awesome product! I am no "Will Prouse", but I highly recommend!
did you find any issues with the battery when it sat outside in the heat . i bought 3 weize and about ready to install. to big to keep in a garage but i keep it tarped.
@@cerealkillerjigs The battery that failed was kept in my garage or inside our 44' boat. Both places are unconditioned but not super hot. Still don't know why it failed.
I always find it fascinating how you are so enthralled by the Batteries Temp sensor .But i like your videos, and they have helped many learn a lot about Solar we are lucky to have you.
That's a good point about the 12 volt sever rack battery. As I've said before our plan is to build an off grid property with a 500 to 700 SF home and use 12 or 24 volts for the lighting and a 48 volt inverter for the line voltage needs. Using two systems gives you a bit of redundancy in case something goes down.
I put one of these in my RV last fall - I hear you loud and clear on price and quality - but overall I just needed a single lithium battery to swap out my lead acid that I can fully discharge without damaging it and having it last 24-36 hours running the 12v options in the rig. If I were doing a whole battery bank or a big solar setup I'd choose something different - but for a direct swap in an RV this makes a good low cost option
Finding different internals is EXACTLY what I would expect from the Chinese. I studied their business culture years ago when I was looking into being an importer. It's very common for them to use whatever is handy or they can get their hands on that will get the job done within their often loose parameters and their quality ranges all over the place and can be quite different from unit to unit. Especially when having different workers hand building that product.
Thanks Will for doing this again. I was ready to buy the Weize after your first review, but hesitated. Glad I did! Also it lead to me your teardown video the the Powerurus battery and that impressed me a lot. MUCH better build quality for not much more money over these budget brands like Chins. I now see the Powerurus batteries are now listed first on your list of 12v LiFePO4 batteries. I bought one through your link and it's been working great now. $0.28/Wh, low-temp protection, bluetooth (the Epoch Li-ion app works better than the regular one), 200A BMS. Only thing I don't like is the case is HUGE and is probably a lot of wasted space in there.
I commercially clean swimming pools and use one of these in my vacuum so it gets used and recharged a ton, 3-5 times a week depending on the time of the year. About 18 months later it’s still working great and holding a charge as when it was new. Also if it makes any difference it lives in the back of my truck all year in the heat of summer and freezing winter
Thanks for the info. Just bought one from Amazon for my 54 lb thrust Motorguide trolling motor. Kind of regretting it now after getting your take on it. Guess I'll find out.
I have three of the 50ah Weize batteries. One is used for a remote mobile camera that I move around my property. The other two I use for Christmas lights on either side of my driveway. I bring them in to charge. Mostly no sun in the winter. The mobile camera rig is just easier if I don't have to include a charge controller and a panel.
I have (3) 100AH of these that I purchased about 10 months ago connected to 600 watts of solar in my RV. Live and travel fulltime and honestly haven’t had any issue with them so far. Totally agree about buying a larger 200 AH or more but had space concerns initially. Thanks for the videos!!
Funny that the thing you liked about SOK was the metal case. I bought 2 after watching your review of them. Put them on a boat and one of the cases rusted badly. SOK sent me a plastic marine case as replacement for free. But, the layout was different and I had to rewrire it to fit the BMS. I like the idea of a cheaper, plastic battery for a boat.
Cheap Chinese batteries lasting as advertised is probably the best marketing for reliability that LFP could ever get :) Good advise on getting the biggest AH cells you can practically get, those 300ah prismatic cells from china are incredible value for money.
I bought a one for my cpap backup, good battery for night time power outages. I have my eg4 server rack batteries for backup power, but for something that fits in my nightstand to run a 12v machine, it works perfectly
I have 3, 20 amp hour and 1, 50 amp hour Weize batteries and haven’t had any troubles. I use the 50 amp hour battery in my square drop trailer and use the 3 20 amp hour batteries wired in parallel to run my dump trailer. No problems so far.
If you buy these with the intention of making a 48 volt system, then you are correct it makes no sense. Just get something like the EG4 (which I have done). But if you're building a small 12 volt system, then these things are fine IMO.
You can buy a Weize Battery here (affiliate link): www.weizeus.com/collections/weize-lifepo4-battery-lithium-phosphate-li-fe-po4-cells?ref=WILLPROWSE
12V LiFePO4 that I recommend you buy instead: www.mobile-solarpower.com/lithium-batteries.html
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*My Favorite Online Stores for DIY Solar Products:*
*Signature Solar*
Offgrid One-Stop-Shop. Best Value 48V LiFePO4, Victron and Offgrid Specific Heat Pumps:
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*Current Connected*
SOK, Victron, Mr.Cool Heatpumps and High Quality Components:
currentconnected.com/?ref=wp
*Ecoflow Delta*
My favorite plug-n-play solar generator:
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*AmpereTime*
Cheapest 12V batteries around:
amperetime.com/products/ampere-time-12v-100ah-lithium-lifepo4-battery?ref=h-cvbzfahsek
*Renogy*
A classic 12V solar store that has been around for ages!
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*Rich Solar*
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for a few dollars more they have a heated battery option
American Engineers - Good ideas, Good execution.
Chinese Engineers - Good ideas, bad executions.
American products - Good warranties
Chinese products - Bad warranties.
That is the logic now a days. Cheap doesn't mean good quality. You cannot have the best of both worlds.
@@theindependentlifestyle a 48v 100ah EG4 is almost the same price as a single battle born
cheap doesn't mean junk
@@woodchippers_WestWingDimeBag It depends how you define junk...Quality control man. It is all about the quality control. What we are spending our money is on quality control.
This is what I learn when I work as an apprentice in a machine shop. It is all about the quality control.
Sometimes cheap products have none of them.
Will, is it possible to run a well water pump(220V) for short periods of time off of an all-electric generator of some kind that can then be used for other gizmos the rest of the time, or are dedicated "solar well pumps" a better option. I can get electric from the street, but would like to try an alternative, at least for a bit. Thanks. Cheers.
What’s truly great is that you come back at a particular item well over a year.
I love the fact you are not promoting any single brand out here! I am a loyal subscriber because of your honesty and dedication to give the best information to your subscribers. the internet nowadays is full of crooks and sellers who get paid to promote some crappy stuff and pay for reviews instead of improving the quality of their product. I applaud you for being an honorable RUclipsr and not selling out like the rest.
We bought the Ampere Time, 2, 200ah. We bought them after your review. Knowing that the batteries would be stored indoors, and temp controlled. It’s been over 18 months, and I am loving them! We have never gone this long boondocking, without the generator. We are on day 45 without the use of the generator.
Awesome!!
what is your resting voltage? I have the same setup,I get up to 13.8 doing the day and rests at 13.12?
@@izzyizzm8761 I think I’m resting at 13.5. I have a Victron system supporting the batteries. A smart shunt, a 100/50 charge controller, and 820w of solar. We have been in the desert in Arizona, then moved up here to Lake Mead. I only went down to 12.06, 5 days ago, when we had clouds all day. I thought I would not have any battery power when I woke up. I didn’t even sleep with my cpap, I was afraid we would run out of power. But the next day, the was shinning. So I pulled out the 140w portable solar panel, shut off the 110v fridge, and shut off the inverter, for the day. We made up to 80% of power, and the day after, it topped us off. Since then, it’s been at float charge by 11am
@@tracymeskel2839
For your health, don't sleep with out using your cpap😱. Get a backup. They are inexpensive enough. 🤗
Hi Will, this type of battery are still the best option for small boats and sailboat, where space is tight and builders create spaces only for this size of battery. So keep bringing them to your channel. It is always a good reference to have them tested and known what the community think about them.
Also good for small out buildings like chicken coops, where you run some timers, LED lights, electric doors...
@@user-ty8jl3kw8xNo, the chemistry used in these types of batteries is different and inherently safe.
@2 B Tesla??? Dude you have been watching FAKE news. Now if you had said Chevy you'd be factual. Google "Tesla over a cliff", briefly a Tesla in Comyfornia was driven off a cliff (by a suicidal man) and crashed 250 feet down on the rock below. The family of 4 survived and the car did NOT catch fire!!!!
You should promote your solar book . It has helped me immensely . I have purchased copies for people that wanted to get started and were intimidated . Thank you for all your time and energy to help us .
@@my_channel_44 Thank you for the tip .
You just helped me realize why, when showing off my LiFePO4 collection, and bragging to others about why they are the best thing since microwave ovens,.....they don't get it.
Same here. Great resource for beginners!!
Maybe Will could do an updated edition of the book.
@@my_channel_44 I wasn’t even aware he had a website. Gotta get on that
Thank-you for reviewing for us small people . Some of us have very small systems and I’m glad you haven’t forgotten about us .
I bought 2 100ah over a year ago when you put them on your channel. So far no problem. Love them.
Seeing follow up on stuff like this is helpful. And I liked that you checked if it was the same inside!!!
I picked these up after watching your video last year, I used 3 of them in parallel for my camper solar/upgrade build - so far it's been fabulous, 300ah paired with 600w of solar is keeping things charged, and lets me run the Starlink the entire time we're out, which means working remote is stellar.
Thanks Will! Your vids are super helpful and are great info that's easy to digest
I have ( 4 ) Ampertime 100Ah Batteries ( THANKS to you Will ) Working on 2 years now with NO issues.
After your review of Zoom Batteries (now Redodo) a year ago, I purchased eight 100amh and five 200amh for my 50ft long keystone 5th wheel with 6200watt HQST solar panels on the roof...and thus far no problems :) Im running several Freedom X 3000 inverters, and alot of EPEVER controllers (again after your reviews). My system is sectioned into 3 systems (living/main, kitchen, and bedroom. I spent more money going this way, but any part of my system can go down, and Im still powered up fine! I run my dometic ac unit all summer and a large fridge and microwave :) Ive had several friends with alot of long term issues with Victron stuff, so Im glad in the end I went with the brands I did. Thank you for your product reviews and helping me make those choices! Love to hear more about heating options using solar!!!
I am a full-time 6month a year. I ordered 2 from Amazon about 60 days ago and installed immediately. I am happy so far.
I have 3 -200ah batteries in my RV for a couple of months and are working great. Low temp has worked correctly stopping charging when below 32 degrees.
[edit] Why would anyone buy these $300 batteries? Very simple - people buy the “small” batteries because they do not need 400Ah of capacity! If you only need 100-200Ah of capacity and you don’t have an unlimited budget, $300-600 hurts a lot less than $1500!
Your older, original followers often have smaller off-grid system needs…. vs your channel’s current whole house systems focus.
Thanks for coming back to small system earth with this update!
You are correct. My system runs everything here, and I have less than $1500 in the entire system.
Prices keep going down too. 12V 100Ah batteries are now available under 250 moneys.
Ty Will,
I’ve grown to trust you in all things solar my friend. Ty for your time.
I bought Chins batteries for my last RV (your review was helpful) but had to rig my own low temp protection circuit. For my new RV I'm getting the Weize 300Ah model. I looked at the server rack battery, but it was 33% more power for 50% more in price, so for me it wasn't the best solution. Keep up the good work, your reviews are always enlightening and entertaining.
Thank you for still reviewing the "smaller" stuff. Most of my use cases are portable operations, so taking anywhere form 100 to 200 watts of solar panels and a single 12 volt battery (20AH to 100Ah) out in a field and have it run for 12 to 24 hours.
Thanks Will, these re-reviews are hopefully what keeps the manufacturers honest. At the very least, it keeps us in the know!
Last year I upgraded my OffGrid, RV system, and I used the Chins 300 amphr smart batteries. I put two of them in parallel. So far they’ve been working fantastic.
I can't afford the risk with completely different system inside.
You are so valuable Will.
🙏
Some of the reasons for buying the smaller 100 ah battery are for physical handling capability of the assembler. I’m very limited in the amount of weight I’m allowed to lift due to a spinal injury. So I’m looking to keep individual component weight down. Thus for people with limited physical ability and financial resources these tend to make sense.
Agreed - the server rack would be ideal but too heavy - maybe make a wheeled server rack for domestic with ship-to-shore power connections?
Exactly. I also could not fit larger batteries in my short wheel base van.
I have 2 of these batteries in my Tiny camper and they work great. By the way I found mine on sale for $250 each. Great deal and I wish I had purchased 2 more.
I appreciate you revisiting this battery. IN the last 18 months I purchased 3 Chins 12v 100Ah batteries based on yours and others' reviews. I understand that they changed their cells as well. Some have pouch cells now. I would love to get an SOK but the price point is a little high for me.
If these are suitable for marine use, they'll be purchased one at a time. Just a reminder that everyone doesn't need 6 or 8 batteries at a time. Thank you for your world's best reviews!!!
I bought two of them on your recommendation in your other video. Glad to say they are both running very well and I have had no problems with them.
Loving my Chins, 12V, 520AH bank.
Cycling flawlessly for almost a year now. Using a continuous, solid copper busbar across the terminals instead of cables
Hey Will, I bought one of these batteries about 6 months ago for my RV based on your first Weize video. I liked the quailty of the battery, the low temp protection and the great price. Battery has been good. I needed to replace my golf cart batteries so decided the Weize 100ah 12V would be a good choice. I bought three of them and run them in series for 36V. They do work fine but they do have an issue with the BMS shutting down current flow if I demand full output from the cart. It's rare that it happens so I'll live with it. Now that I saw you second video I'm second guessing my choice.
Thanks for all the great info and videos.
I bought one a little over a year ago on your recommendation. I'm using it in a van. It is kept charged using two 100 watt solar panels through a 20 amp Rich Solar charge controller. So far I have had no problems with it. It runs a 12v refrigerator, interior lights, a 1500w inverter, a water pump and charging ports and 12v accessories.
Component inconsistency is a total SHAM. Thank you for calling it out! Not enough of this on youtube!
I bought this battery back when you first reviewed it, still works well. I bought 2 of the Ampere Time and liked them so I bought another 2. Reason I went with 4 12v is that I can reconfigure my set up in any voltage from 12 to 48 volts. If one of the batteries fails as a 12v system I only lose 100ah, for the other voltages it is a bit awkward to make it work but I will not be without any power as if it was a single 48v battery.
I follow that logic.
Plus you can ‘scale up’ over time for budgetary reasons. Or just add one if a situation change needs a bit more amp hours without dropping $1500.
Or for the two 140Ah Btrpower cheapos I bought for $395ea- I didn’t want to commit to more than 1 battery at first in case the brand was a dud. I tried to buy a third but they are not listing a 12V 140Ah any longer which is annoying.
I get what you’re saying.
@@fishhuntadventure How are you liking that 140ah batteries? Have you tested them to see if the capacity is not overstated?
I bought two of these batteries shortly after Will's review. Both work great and being used.
Thanks Will for thr review. I recently bought 2 - 200 ah of a competitors cheap batteries. My reasoning to buy these instead of a server rack battery was size and fitment form my travel trailer. I needed 12volts and had no place for the server rack firm factor.
I have two Weize 100 amp hours LiFePO4 batteries purchased July 29, 2022. Inside my Escape 19 RV trailer they are working fine. They are paired with a 300ah Chins LiFePO4 Smart battery in an unheated storage box outside of the trailer. They were all purchased based on your videos and I've been happy with their performance.
We bought 2 of these off of Amazon after watching your previous videos. Your previous videos left a positive impression on us and we passed on the Chins. It seems you have done a 180 on these. We Have a small DIY Van Build we don't need 400 AH. Keeping fingers crossed. Great channel, very informative.
People use multiple 100Ah batteries because they start small and find out need to expand for the system to work as expected - like me, for example :) I ended up having 4 100Ah batteries and one 200Ah in a 12V system. All Redodo by the way.
Nice video!
Is weight also an issue? Perhaps people are buying the 100 amp hour batteries because they are lighter?
@@toronado455 Yes, especially for RVs.
I got 2 200Ah Ampre Time Plus batteries. They're awesome and I love them! I'm a ham radio guy and last year for field day we ran 2 100W ham radios, 2 laptops, a 500W inverter for charging, 2 box fans, lights, you name it and we only really used 1 200Ah down to about 30%. This year, we're doing it again with both batteries and even more gear!
Man you keep this company’s on there toes 👍🏽 checking their work after a year thank you
I bought 2 of these for my Class A to replace the AGMs that were killed by the wrong setting for low voltage cutoff on the inverter from the factory. So far they are working great.
Isn't it nice that if you get that wrong on LFPo, they don't care - instead of dying permanently.
Will I gotta tell ya that forum is awesome. And your famous in the off the grid community. Every time I go to recommend your channel to somebody local. They already know who you are. 😎
I built a 12v truck jib crane with the 36ah version of this battery. Im in pa and we went through very cold winter and guess what... its still working great. Used a powerwerx 50v / 14.6v mppt with a 36w panel and dang its great. 1500lbs pull power baby. Super cheap
As an electrical engineer, it is standard procedure to have at least three manufacturers for every major component in your bill of materials.
This practice goes on in everything from your TV to your car. An Infamous example I can remember is when GM had a manufacturer sell them a boatload of defective stepper motors for their instrument clusters, and they mixed them in with all the stepper motors from all the other suppliers, next thing you know everyone's gauges are randomly failing prematurely, while the majority go to 300,000 miles without an issue.
Another well-known example is Apple not using the same speed SSDs or processors in various devices leading to "identical" devices performing differently on benchmarks.
That being said, the important thing here is the company determines the minimum acceptable standard, the minimum acceptable performance, for Apple I'd imagine it's minimum requirements are still better than some fly-by-night Chinese company, even if they're manufactured in a factored across the street from the Apple products.
I have had the Weize 300ah version for about 6 months and so far I love it. Same with Ampere Time 300ah. Also had Weize 100w panels that performed well.
I have two of these Weize batteries and they are working fine in my small homemade system. I don’t cycle them much as I keep them charged for a backup power supply. I have not had any issues with them.
I bought 2 of the 300 amp hour batteries from Amazon after your first tare down video on Weize batteries. Installed them in my camper. And so far no complaints from me.
We bought a couple of Ampertime 24v 100 amp hour batteries about 18 months ago after watching your review. I don’t follow rules to well so I have 4 Battleborn 12v 100 amp hour wired 2p 2s parallel with 3 Ampertime 24v 100 amp hour batteries. I started with the 4 and added 2 of the 24v a couple months later. I just added the 3rd 24v battery just a couple months ago. I now total 500 amp hours @ 24v. Charging with 30 cheap used 240w panels from Santan Solar (thank you for that tip too) and two Midnight Solar 150s limited to 90 amps each to keep the temps down. I did have them limited to 80 amps each before I installed a 10” fan plugged into a temperature relay to help stir the air a little.
I even have a 12v 50 AH battery that I tie in to keep charged for my trolling motor or portable power supply with a small inverter.
Breaking all the rules and having no issues.
Thank you again for all that I have learned from you. You inspired me to take the plunge and go gridless!
The main advantages of the 100 amp hour batteries is current output for smaller systems and flexibility of where you can install them in a confined space like a boat or rv. If you aren't trying to run an air conditioner 200 to 300 amp hours is plenty of most rv and boat applications. With the 100 amp per battery you can still have a 2 or 3kw inventor and run loads like a microwave or induction hot plate. IMO the ideal for small systems is the 200 amp hour 200 amp bms from ampere time. Same current output as the 100 ah batteries with half the interbattery wiring and cheaper than even the budget eg4 server rack.
An advantage to going the DIY route, you know exactly whats in it and how its built. There's some peace of mind in that. Even if you are the only warranty you're going to get on it.
I've had one for a year now and it works great! I've even run it down until it auto shut-off and had to jump it with my car battery to get it to charge again but it still holds a charge like new.
Thank you.
Please keep up your hard work on reviewing products.
Love it
I have 3 - 300AH 12v Weize batteries, going for about 3 years now. Working great. I got one for $1100, one for $1000 and one for $850. Sometimes the official website is cheaper price for purchase, sometimes Amazon is cheaper
The low temp really works. Got two of them for an camper about 6 months ago. They are solid so far. Not spending more than I have to. The 200 amp hr is $600 so even better deal.
At the beginning of the video I was starting to regret buying a SOK battery but now that I watched the entire vid I am glad I spent the extra.
Great that you talk about supplier ethics and commitment
I bought one on your recommendation. No issues.
I bought 2 a year ago. So far no issues. But I don’t really boondock. Just wanted security in case hookup n/a or power outage.
I bought an 18Ah one of these last year and tested it on my channel, it started nose diving at 16Ah and was dead by 17Ah. I wouldn't buy another one of these if it was the last battery manufacturer on the planet.
I like how you are always updating the store with your current favorites . When I choose my installer , they will need to be familiar and adhere to this website, thanks Will
i love it first you say good then after cutting it open and testing you bash them.
This is why i love your videos, you say it as it is.
i wish i had you as a know friend. you could help me get over a electric problem.
(knowledge thing. not physical deal).
keep up the great work.
I bought a CHINS 300ah about a little over two years ago, the thing operates exactly as advertised still. I put it into a large camper van with a fairly large solar array,
it limits charging to 60 amps, it has a hard cutoff at 200 amp draw within +/-3A.
I learned a lot working with this, but the battery still works within spec at 99.5% original capacity
I liked this so much, The next year, I bought the 400amp version for my folks home, who live off grid. better specs all around (charging/cutoff voltages that better match lead acid) no need for a quarterly drain down, even better relative short term current draw.
The first battery showed up and was a dud, failed in a week, it retained capacity but couldn't deliver more than about 20 amps,
I returned it for a new one, no issues since.
Great value Will !! Consistency: You have discovered something that has been a large difference in "retail" or "consumer" products vs professional grade. This is true for so many products.
Suggestion: I think there is a lot of value in you doing more "consistency round-ups" to evaluate top brand products to see how much they change, over time. Perhaps once per year for a category.
I purchased 2 originally and had great luck with the batteries. I have recently purchased another battery from Weize and it has now been working everyday for the last three months. I now have 3 ampertime, 3 Weize and 1 Chinn and all are working well in small systems I am running.
After watching your videos I'm convinced I did the right decision to build my own system in my van,
I have 2 of this since 2021 so far so good I use them in series for a 24v to power a brushless trolling motor. If they gone down in quality i probably go with another brand 😊
Hi Will, Thank You for cutting open the first one and doing it yet again! The first video helped me a ton, it gave me the confidence to open the top on the one I bought in August of 2022. I put the battery into service shortly after receiving it without running any tests since I was not yet set up to do that. I ended up having some issues with the battery when charging and discharging in a solar setup I have with a couple 12v DC pumps. It seemed to disconnect during charging when it was close to but not at the cut off voltage. Then during discharging It would cut out earlier at a higher voltage than claimed. So I built a little setup to where I could discharge the battery at 20amps and keep track of the amp hours pulled. I then bought a Victron 5 amp charger which has the charge capacity built in with the app. With both I was getting a consistent 49-50ah discharge and charge. So I reached out to Weize through Amazon and to my surprise they responded to every email I sent and worked with me to finally refund some of my money to compensate for the 1/2 capacity battery. So once I received my refund I thought why don't I open it up and see if there is a cell disconnected (50ah 2p4s configuration) or something like that. What I determined was one of the paralleled 50ah packs was at a lower charge level then the other 3. I topped all of them off with a bench power supply and then ran my tests again. I now consistently get 98-99ah out of the battery. So not a perfect experience but I have to say Weize did respond usually within 24 hours and in the end refunded me some money so I am happy with it. My battery is built just like the battery you took apart in your first video, its unfortunate to see the lower build quality in the 2nd battery. Thanks again!
Will, was there any difference in the product or model numbers on the cases? Might suggest build differences. Thanks for all the battery teardowns and testing.
thanks for the revisit I just picket up 2 just because of your 1st review, just installed them last week changed out my converter, thank you for what you do SC
I think many of us, myself included, are buying batteries in this price range just to replace some paired 6 volt golfcart batteries in our campers or to get better runtime and lifetime use in running trolling motors on small boats. Just saving weight, compared to a 12 100ah LA battery, can make these worthwhile in many none solar uses. You're focused more on building solar systems, but a lot of people have no desire to do that, and a server rack battery would be useless to them. They just want a superior "drop in" replacement for the old LA technology and the peace of mind that comes with knowing it will last their lifetime if they are middle aged and use the battery in a typical cycling profile. I'm really glad that you are following up with these drop in batteries because there is a huge customer base out here, that aren't building power walls, that also need your input.
I bought one of these 10/2022 for $299. It failed in 5/2024. I used it for trolling motor. It sat for a few months and died. It would not restart. I tried all the jumper techniques to no avail. Weize tech support responded to emails and worked me through troubleshooting. It was a bit of a process, but they finally agreed that it is dead. They sent me a new battery and I still have the old. I wonder if I can repair and will cut the top off one of these days. Since then I have upgraded trolling motor and battery to 24 volt. I bought a Repower Flow 24 volt 100 Ahr battery in a suitcase. So far it is an awesome product! I am no "Will Prouse", but I highly recommend!
did you find any issues with the battery when it sat outside in the heat . i bought 3 weize and about ready to install. to big to keep in a garage but i keep it tarped.
@@cerealkillerjigs The battery that failed was kept in my garage or inside our 44' boat. Both places are unconditioned but not super hot. Still don't know why it failed.
I bought 2 of these in June of 22 and have been happy with them so far. I was in freezing weather once and they refused to charge as they should.
I just almost bought one of these based off your old video.. good thing I waited, o and Amazon raised the price.
I always find it fascinating how you are so enthralled by the Batteries Temp sensor .But i like your videos, and they have helped many learn a lot about Solar we are lucky to have you.
If you lived in Northern Minnesota with a temp span of -30 to f100 you also would be concerned 😊
@@rodmartel3143 Brother Will lives in AZ
That's a good point about the 12 volt sever rack battery.
As I've said before our plan is to build an off grid property with a 500 to 700 SF home and use 12 or 24 volts for the lighting and a 48 volt inverter for the line voltage needs. Using two systems gives you a bit of redundancy in case something goes down.
I put one of these in my RV last fall - I hear you loud and clear on price and quality - but overall I just needed a single lithium battery to swap out my lead acid that I can fully discharge without damaging it and having it last 24-36 hours running the 12v options in the rig. If I were doing a whole battery bank or a big solar setup I'd choose something different - but for a direct swap in an RV this makes a good low cost option
I have one of the thermal self heating units for two years now and it's still good. I have a regular one and it's also been good.
Finding different internals is EXACTLY what I would expect from the Chinese. I studied their business culture years ago when I was looking into being an importer. It's very common for them to use whatever is handy or they can get their hands on that will get the job done within their often loose parameters and their quality ranges all over the place and can be quite different from unit to unit. Especially when having different workers hand building that product.
Real trustworthy and good review. There are a handful of very solid reasons to buy multiple batteries like this one.
Thanks Will for doing this again. I was ready to buy the Weize after your first review, but hesitated. Glad I did! Also it lead to me your teardown video the the Powerurus battery and that impressed me a lot. MUCH better build quality for not much more money over these budget brands like Chins. I now see the Powerurus batteries are now listed first on your list of 12v LiFePO4 batteries. I bought one through your link and it's been working great now. $0.28/Wh, low-temp protection, bluetooth (the Epoch Li-ion app works better than the regular one), 200A BMS. Only thing I don't like is the case is HUGE and is probably a lot of wasted space in there.
Thanx for the update. Put one in my camper about 60 days ago, Hooked to harbor freight solar panels. We shall see how it goes.
I bought 2 and still going strong after a year.
We have 2 of them in our camper after the first review you made. So far they are doing well, lets hope they continue to do so.
I commercially clean swimming pools and use one of these in my vacuum so it gets used and recharged a ton, 3-5 times a week depending on the time of the year. About 18 months later it’s still working great and holding a charge as when it was new. Also if it makes any difference it lives in the back of my truck all year in the heat of summer and freezing winter
I'm looking forward to what you tell us in this video. So far I've had my 100ah Weize in my trailer for about 2 weeks so far and no problems.
I have one of those TimeUSB 100Ah batteries that I fully cycle almost every day for over a year and have had no problems.
No matter which product, customer service is top priority for me, no service no sale, this is true with many china products.
Thanks for the info. Just bought one from Amazon for my 54 lb thrust Motorguide trolling motor. Kind of regretting it now after getting your take on it. Guess I'll find out.
I have three of the 50ah Weize batteries. One is used for a remote mobile camera that I move around my property. The other two I use for Christmas lights on either side of my driveway. I bring them in to charge. Mostly no sun in the winter. The mobile camera rig is just easier if I don't have to include a charge controller and a panel.
I have (3) 100AH of these that I purchased about 10 months ago connected to 600 watts of solar in my RV. Live and travel fulltime and honestly haven’t had any issue with them so far. Totally agree about buying a larger 200 AH or more but had space concerns initially. Thanks for the videos!!
Funny that the thing you liked about SOK was the metal case. I bought 2 after watching your review of them. Put them on a boat and one of the cases rusted badly. SOK sent me a plastic marine case as replacement for free. But, the layout was different and I had to rewrire it to fit the BMS. I like the idea of a cheaper, plastic battery for a boat.
Thanks Will. I almost bought this till I saw your review.
Thanks for the update on the WEIZE battery I was considering them for my next purchase.
Will thanks for your honest opinion .
Cheap Chinese batteries lasting as advertised is probably the best marketing for reliability that LFP could ever get :)
Good advise on getting the biggest AH cells you can practically get, those 300ah prismatic cells from china are incredible value for money.
Hey. I got 2yrs on a pair of 100ah. No issues. Im off grid for real near Tecopa.
I bought a one for my cpap backup, good battery for night time power outages. I have my eg4 server rack batteries for backup power, but for something that fits in my nightstand to run a 12v machine, it works perfectly
many are buying for use on bass boats and having great results
I have 3, 20 amp hour and 1, 50 amp hour Weize batteries and haven’t had any troubles. I use the 50 amp hour battery in my square drop trailer and use the 3 20 amp hour batteries wired in parallel to run my dump trailer. No problems so far.
I used the Amperetime 24volt 100ah in my boat and love it... I did install videos on my channel for the system installation
I would like to see more HIGH temperature shut-off tests, as I live where it gets hot, but hardly ever freezes. Thanks! Love your videos!
If you buy these with the intention of making a 48 volt system, then you are correct it makes no sense. Just get something like the EG4 (which I have done).
But if you're building a small 12 volt system, then these things are fine IMO.