New SOK Battery! Lowest Price 48V Battery: $1,349 for 5kWh
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- Опубликовано: 14 дек 2024
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Which one do you like most?? Let me know below! Also, the sok has bluetooth.
Affiliate links for this video:
SOK Budget 48V: www.currentconnected.com/product/sok-sk48v100-ncbt-user-serviceable-rack-mountable-battery/?ref=wp
EG4 Budget 48V: signaturesolar.com/shop-all/batteries/eg4-lifepower4/?ref=cPwLcVc0SW-BjN
Other 48V battery options: www.mobile-solarpower.com/server-rack-lifepo4.html
Quick question: Are all these server rack systems limited to 1C/100A output for the whole rack?
We are looking for a hybrid system in EU (3 phase/8.2kw panels) but every option for 15kwh battery (3x5kwh 48v) seems to have a ~5kw limit (not including short surges).
Need at least 10kw to accommodate induction, EV charging, etc. Even that is cutting it close. Do I have this right?
Thanks as always for the invaluable education Will 🙏
@@TheBkoy each battery does 4000W watts. I couldn't imagine someone not using three minimum for that system. So yes, for a stack you would have more than double what you need.
@@TheBkoy the whole tower does 480A. So 24,000W. Your system is very low draw
Does the SOK have UL certs? EG4 battery has pre-charge resister if I recall not that that’s a deal breaker. Competition is good no doubt
Is there a technical reason they do not use the larger 280+ Ah cells? Would dramatically drop the cost per kWh.
You can always add a Pre-charge Resistor to your Main Battery Cutoff Switch. I used a 10-ohm 25-watt power resistor across the Main Battery Cutoff Switch through a momentary push button (6A) with a LED and 10k resistor across the power resistor to show when the Caps are charged.
Edit: Or across one of the main breakers.
would love to see a video of how you do it!
Really simple but great idea! 👍👍
Hey there! Thanks for sharing your suggestion about adding a pre-charge resistor to the main battery cutoff switch, sounds like a handy modification for battery systems. By the way, have you checked out the Segway Portable PowerStation Cube Series? It's a versatile and reliable power station with a massive capacity, fast charging, and a waterproof design. Perfect for outdoor adventures and backup power needs. Just thought it might be something you'd be interested in. Happy camping!
That has to be the cleanest looking interior of the battery I’ve ever seen.
I had a bms on one of my SOK batteries burn up. It popped some cells. Dexter sent me new parts. Ultimately I was sent a new battery. Their customer service is top notch. I vote current connected.
Holy cow that's not good. What model?
From what I've experienced with EG4, SOK is the way to go.
same
Never had a problem with all my 24v EG4 batteries but I’m sure the SOKs are great
Care to expand on Why?
Batteries seem quite expensive in the US, here in South Africa we can get 5kWh 1C LFP batteries for $1290, with a 10 year warranty on the cells. It's got a Pace BMS in it with a 5 year warranty.
This is partially due to our local prices lagging the exchange rate I think. If you check back here, do you mind dropping the model you're describing?
@@pierrekinbrand The battery I was referring to is a Volta Stage 1, there's a company in Cape Town which started the brand, I've seen very similar looking batteries under the name Green Deer so I assume they're sourcing from the same manufacturer in China.
In my country where people make like 500$ per month, we have to pay for standalone cells like 400$ per 1kwh, if you take into account the salaries in the US they have super cheap stuff
@@faustinpippin9208 really ? i get 1900 a month- car insurance food rent.. screwed by the govt-- there aint much left over-- unless u making bank which is less than 5%
Hey Will, one thing I also noticed - these SOK batteries are NOT UL listed, while the budget EG4 batteries are. That alone might be worth the extra $50 if one is in the market for these right now.
Yes good point!
use this on in your van or rv since ul not needed in vehicles or possibly off grid
Yeah! SOK is designed for RV use/abuse and offers that 7 year warranty. For this specific scenario, SOK seems like a best value battery.
Maybe they are in the process of getting it certified.
@@rockys7726 SOK website states they have no plans to UL certify this battery.
After several failures trying to buy renogy while on sale, I came to your vids to find something else. I REALLY wanted to self heating option, but oh well. Bought the budget sok with your affiliate link instead. Thanks for being THE voice of solar components.
Great video. I’ve already ordered a 6kw EG4 inverter, now I just ordered 2 EG4 48v batteries. Gonna have a kickass 10kw system!
Very nice!!!
That is so cool. I was just looking at it on their website. I know a lot of DIY people that run their system in “open loop” that are going to love this. The lack of UL listing may concern some. But the price will be right for a lot of people.
7 year warranty vs. UL certification and 5 year warranty.
@@RonEvers right. So an extra 2 years warranty. And UL listed if that is applicable to your install.
Eg4 just because of the communication ❤
Not there in my battery journey yet, but your suggestion of pairing one of the higher cost SOK with 5 of these new lower cost units seems like a great way to go! 😊
They are not compatible. Just checked the details on current connected..
@HighTechLab says: We do not recommend connecting this battery in parallel with the advanced version SK48v100 as it may lead to system instability.
@@Alfonso_111 - great to know. Thanks for checking it out!
Not to second guess Mr. Lab but I've heard the same answer to that question with another pack that's bms compatible at least as far as the monitoring software goes -- I tested it. It sounds like a canned CYA response, i.e. no specifics given on why exactly it's incompatible.
@@tomclausing9316 because if one battery is communicating it will tell the inverter max charge current 95A. I will make a video on the Current Connected RUclips channel this weekend. There are also current sharing issues and the BMSs operate very differently
The electrical tape is to hold the quick-connector together, so it never gets unplugged on accident.
Instead of using electrical tape, what about some of the same adhesive used to keep the various connectors locked into the PCB? Either that or maybe a locking connector?
this guy has the fastest outros on youtube ever. Even the 'bye' is ultra quick.
Thanks for the video. I went standard SOK last year after watching all your vids. Had this been available, I might have gone the discount route.
Thanks for opening it up and showing us all that room inside. I like the idea of being able to pull and replace bad cells, or even being able to replace the BMS.....YES. Also, it may not come with a pre-charge resistor, but I think there is something that can be done with a small modification. However, you have also added the other option in your video, just buy one of SOKs more expensive batteries to lead off from, and then a bunch of these. I like that idea better. I was thinking of building my own batteries, but thinking of a rack and all the batteries in cases would look a lot cleaner. Thanks for the review. Will an SOK battery fit in a EG4 rack?
THANKS WILL!
As a newby the whole "you have to attach a resistor when first charging to ameliorate the inrush current" thing is kind of daunting.
Paying a bit more when you have a lower confidence level can be appealing but GOLLY these are priced to move.
I've never had issues and I have 5 of them. What are you connecting it to Chris
@@CJ30123 that was V2 BMS and there were only a couple bad ones. They are at V8 now and haven't had any issues
EXACTLY what I was thinking!! I'm looking to get a pair of 48v 100ah batts, and was up in the air over EG4, EG4 v2, SOK w/ the screen, and now this one. Right now, I'm leaning towards the 'better' SOK.
State of battery readout is only convenient if you are in front of the battery. I would rather have BT, then you can be in another room (ymmv) and still get that info.
Warranty plus Blutooth SOK for sure.Thanks Will!
I have 3 of the more expensive SOk server rack batteries. I like the idea of adding these to add capacity for a lower price.
Look forward to your build and as usual putting them thru the paces, thanks for your update on these cheaper battery solutions.
Love the price point and the high current BMS. Thanks for the review!
What does BMS mean?
@@georgegould667 battery mgmt system
Amazon currently has the ExpertPower 48V 100Ah 5KWh LiFePO4 for $1,399. It has a display but doesn't seem to have communication. They claim a warranty of 10 years.
I've already gone with Jakiper batteries and will be buying a few more of them. Good enough
I saw SOK and some comments and knew it was a solid product.
I’m going to stick to EG4 since I’m buying their inverters
Keep the prices dropping so more people can become more self reliant!
I'm curious about your opinion on sodium ion batteries, na-ion. BYD made a car called Seagull and used sodium ion batteries using their blade technology. Would you ever consider those type of batteries?
Not to mention eg4 now has a communication hub for lifepower4 batteries
Shipping price matters as well.
Communication has benefits but as I see this as a low cost DIY option, I'd say be fine running in voltage mode for a lower price and longer warranty. I like the idea about water-proofing the battery. My basement could get some water in it with a plumbing leak or major flood - it would be pretty easy to install them in a floor mount tub that provides ~15" of flood protection.
Thanks for your review Will.
I still like building my own battery out of 280 Ah cells. Better value, great knowledge builder, and much more control. Huge set up time and learning curve though. Nothing good comes easy.
Agreed. Its better to learn it all and be able to fix it all. Same goes for drones, dont buy off shelf build your own for much cheaper and most of the time way better features.
Ps mind giving a link to the cells you buy?
@@Fatpumpumlovah2 I never thought about building my own drone. I'll have to look that up. Thanks!
@@2011italianoboy painless360 on the tube has i think the best step by steps
This IMO is an even better battery for the portable generator build
I’m tempted to put one of these in mid size sailboat with a large dry ventilated engine room. Seems a lot more convenient and economical than building a system.
Love these updates!
Nice brother. We hope we can come see you while we are in town.
Will, you used to order and test cells straight from China. I'd like to see you do the same with server rack batteries. I've seen them recently for $1,000 ish.
I've already done that multiple times lol those videos don't get many views. If you share those videos and pump up their numbers then I'll make more of them
Excellent video as always. I want to build a battery for my 13KWh solar system, but NOT for back up. I want to power shift so I import almost ZERO power from the electric company. Suggestions????
SOK 48V 100Ah (4800Wh): $1350
DIY 24V 280Ah (6720Wh) [using 8 x EVE LF280K and 200A JK BMS]: $1150
So significantly more capacity for $200 LESS. That's not even factoring the higher charge/discharge rate (3840W vs 4800W) and the highly customizable Bluetooth functionality. I know a battery like this SOK would be great for massive projects and IS definitely safer and more user-friendly, but for small, one-battery systems, a DIY battery is absolutely still the way to go.
Evan... You the man!! I agree 100%!
Still my lowest cost battery is raw cell but no one shared or liked that video. I could cover those more but people don't like those videos.
Where do you value your time? Does your DIY battery have a warranty? Who do you call for tech support? What happens if you get ripped off and sent B-grade cells, like the many horror stories on the forum?
You got my vote for 2024 🇺🇸
I like the price but they don’t allow for local pick up so shipping alone is $300 to me in Los Angeles
Thank you for your great reports
Waterproof battery? I would DEFINITELY buy that!!
Will it float😅
Will how about UL9540 listed?? Important to say whether these batteries are listed in your videos
Will. I have faced a server rack battery suddenly shorting inside. No idea how to act when smoke started. Can you make a video about dangers and how to act against an scenario like that?
Competition is always a good thing as long as it's an honest one because it always brings out the best in everyone, (lower prices).
God Bless...
If I start buying these, I'll have to build a data center to camp in. The last time I worked with 48vdc was in a telco CO.
Will, what do you think about adding this battery to the Renogy Lycan to expand it's storage?
Would be nice in his reviews of the grid tie inverters that he ACTUALLY connects to the grid and shows and tests them.
Yeah... but that requires an electrician... and paperwork.... and an inspection... probably would take a whole month just to get everything lined up.
Yes...sadly. But, that is what he does! Tests and shows us how these work and different manufacturers. It may take a few months to do 2 or 3 of them. He could use the same panel set. I want to see how well they push excess on the grid while you are using it to power a load and how they interact with battery's! Why do you think we watch him? He doesn't just talk about the batteries, inverters, panels, or systems. He tests them. Rips them apart. Goes thru the frustrations of parameters, interfaces, poor performance and the good too.
Looks like the SOK is on sale now through your link for $1099. Seems alike a good deal.
Will Prowse: Do you think Sodiu Ion batteries will take off?
I'd do the SOK tbh.. All these batteries are super long lived, and the SOK seems to be of better construction. Set n' forget.. Don't need all that communication stuff in reality. Dial your inverter/chargers etc to charge/discharge your battery bank once and you'll be fine for a good 10+ years.
Would really love to see you do a video comparison between Victron and EG4. My plan now is to use Sok with victron, but the all in one capability of EG4 is VERY tempting.
SOK and Victron are totally compatible
This is exciting news!
when you add shipping costs the EG4 is cheaper, at least to where I live in Central Florida.
pls test the renogy 100ah with built in battery next !!! love your vids❤
All hail the new King!
Just an fyi the new version of the budget eg4 LL (yellow in color) does have blue tooth with their app.
G,day Will from Sydney Australia.
I like the idea of taking the lid off and running a bead of silicone sealant. Also around the breaker to reduce corrosion.
🌌💫
Nice battery but I got the EG4 6 months ago to match their 6500ex -48 Inverter, also the colors are cool
Will, if I understand what you said about adding a couple of the more expensive server rack batteries to a bunch of these batteries and put one on each end of the batteries that are paralleled, I will be able to read all the cells of the other batteries as well?
No
Let's see if we get Sodium ion batteries in the near future.
Or LMfP ftw 😊
Lithium iron manganese phosphate coming sooner.
Lmfp will be a game changer for sure
I'd prefer sodium ion over LMFP solely for the added safety for home use. Either will be good though.
@@Bob.W. Good point
This is that good content 💪💪
Nice. I am liking the price of batteries lately. I hope it lasts.
I like that one is white and one is black. maybe if you are looking for aesthetics, match up by your server room
By the time my current leaf cells fail, you might be testing solid state battery packs or core tap technology!? 😮
Could you have a look and review the SyntechSolar?
Getting really close to the $144 a kWh all in that I paid for my 280ah Lifepo4 cell pack. Almost makes more sense to have it pre built. When it’s $1000 for the 5kwh it would then be worth it imo
Really close? It's 2x as much!
Agree 100%. Life is too short.
Being a build by cell person I would try SOK for sure.
Where do you buy the bare cells?
I just bough 2x 5kwh 48v server rack batteries for 2000$. will be interesting to see how it fares.
Bummer though. Current solar said “We do not recommend connecting this battery in parallel with the advanced version SK48v100 as it may lead to system instability.” In the link.
I got the same answer from Connected.
EG4-LifePower4 Lithium Battery | 48V 100AH | Server Rack Battery
EG4 Lithium Iron Phosphate battery 51.2V (48V) 5.12kWh with 100AH internal BMS. Composed of (16) UL
List Price: $1,499.00
Your Price: $1,399.00
$273.24 / Kilowatt-hour
I have the EG4 3000 EHV so I would probably go with the EG4 but hate them for customer service.
EG4 worked for me with the free server rack and shipping. That deal isn't always available though.
The EG4 can be connected into series to 96v which would work for my ev sailboat....if SOK could it would be a difficult choice...but if either company wants to send me two I'll gladly test them out in a real world environment lol.
Communication is very important. I can’t do an installation with Lithium without communication!
Why?
Dakota Lithium review please. Or at least why it's not talked about other than being a direct competitor to Battle Born. Thanks
You said that you have another one of those SOK batteries for you system. It would be interesting to see if that second one also has electrical tape inside.
Yes akb LiFePo 4.👍🔋⚡🔌💡
Which has the higher max discharge current and Lowest Internal Resistance? Those are big indicators too.
Thank you for another informative video six stars
When will these lithium iron phosphate server rack batteries drop in price? Also, what battery chemistry do you see replacing the current stuff?
sodium chemistry
Can you PLEASE REVIEW some PowMr stuff
@WillProwse First, thank you for excellent videos! At 6:45 you mention buying a bunch of cheap ones and a higher end in parallel for comms... could you do a video on that? Benefits and disadvantages, etc.? Thanks in advance!
Now if they could only get them down to about $1,000 they'd be competitive with buying the individual cells and BMS and making your own battery.
Show me where you are building these for 1K because EVERYTHING I looked at kept them at or above the EG4 price easily in not significantly more.
Sure! Build a product and sell them for the same price that a DIY'er can spend. That makes a lot of sense. I can really see a company with a factory and employees, being profitable selling at cost.
Will this work on your 48V portable set up?
Will, I noticed on the Current Connected website, that these batteries are
not recommended for parallel connection. If one were to purchase two or three of these batteries, what is the best way to output 120 volts?
No you misread it. You can parallel connect them just fine
I love these battery review videos and how you use them in your various setups. What I'd really like to see (even just as a whiteboard exercise as I wouldn't expect you to actually build it) is how I can set up a three phase system with batteries. I have 10kw of panels with a 3ph grid tied inverter (SMA). I am looking to add a large battery system as I would like to charge my EV if there is not enough surplus solar, off the batteries. I don't mind installing a LOT of battery capacity if that will allow the peak load to accommodate EV charging. I can time the charging too so that the peak load on the whole property is no higher than 10kw for example. What would be the best way to do this? Should I scrap the grid tied inverter and get a new 10-15kw 3 phase inverter that can do all the diversions, or use the existing one and charge via AC etc... Use a bank of batteries per phase with bank balancing or a single block of batteries with another 3ph inverter? What would you suggest for efficiency?
If you have a bank per phase the balancing is going to be critical otherwise as soon as one phase drops out the charging will likely stop. It's unfortunate in some ways because the first thing an EV will do is convert the single or three phase input into DC, so in some ways it would be better to just charge via DC in most cases, except that it's more complex. (With DC charging YOU have to listen to what the car says and adjust the voltage and current limits, with AC charging you tell the car how many amps to draw and it limits the current for you.) Either way, timing the charge start/stop would be less critical in your case, as you can just tell the car to soak up the excess, even if that excess is zero at certain times of the day. If your charger speaks OCPP then you can send it commands to adjust the load limit in amps, which for AC charging it then passes onto the car to be applied, usually within one second or so (but it can be longer as some vehicles gradually ramp up or down to avoid causing a surge).
Whether you want to use your existing inverter or a new 3ph one depends on whether you want to be able to charge your car in a blackout. If your current 3ph inverter shuts off if the grid loses power, then you might want to investigate a new 3ph inverter, but if it can run your house off batteries already when the grid is down then it's probably cheaper to keep using that.
I am looking forward to the day when you can buy a DC EV charger that runs off a wide DC input range (like 12 to 1000 V DC), as that will allow you to charge a vehicle off batteries, solar, wind, the grid, etc. much more easily than AC charging, since the charger itself will have much finer grained control over how much power goes into the car so it can better cope with fluctuations, such as a momentary drop in power as a cloud goes over the solar panels. It would work like a conventional solar charge controller, but instead of connecting to a 12 V battery, it would connect to the car instead. With an AC charger there is enough latency there that you will probably need some reserved battery capacity to top up the shortfall to avoid drawing too much power and tripping the inverter, if you were trying to hit the maximum power your system can deliver.
@@Berkeloid0 I think the solution will be to get a new inverter with a larger capacity and increase the PV output another 5kw-10kw. My existing system went up in 2011 so the panels are pretty low compared to todays stuff (190w).
Or just replace everything and go micro inverter on the panel...
Was wondering if you ever taught about putting together a portable emergency system that could be plugged in , instead of a gas generator, to power an emergency transfer switch panel that is 7500W @240v .
Will has done just that in a few older videos!
Which would you recommend for RV use?
It looks good!
I wet with 2 SOK w/ screen in the end. Did hours research. Company in stable and good standards and I wanted some robust and safe Batteries. Doing my system solo, its been fun but how you electricians read that NEC code book....WOW.
Thanks for the videos. Australia and New Zealand have a new BMS regulation requirement stating the temps of each cell in a module need to be monitored. Do you know of any battery that is doing that yet? This goes a step beyond module temperate monitoring.
Hi, thanks for the information
One qustion can i use my off grid inverter to charge my new battery up to high level then use 10A power supply to top balance them in 16s format?
I’m looking for backup batteries for power outages. What kind of batteries should I get? I also don’t know how much power I would need for a backup battery to power and for how long. Any suggestions?
LG4 only service USA and territories only. Same with SOK - Not available internationally. 😢
I need this to be 12v for Rv/van installs .
When are we going to ses the salt/iron batteries
Hello may I ask where 48volt system comes into play for usage? These days with Vanlife etc all you hear about is 12 volt or 110 AC.
I’d like to know why a person would need 24 or 48 volt systems, thank you 🤙
The higher voltage units are mainly for home backup or off grid cabins. But some are installing all in one 48v systems in motorhomes. The 48v inverters are smaller and lighter than 12 volt systems.