BOLTR: Milwaukee High Demand 9.0 Red Lithium. FREEZE TEST and REPAIR!
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- Опубликовано: 11 окт 2024
- What's inside a Milwaukee 9.0 Battery? How does it compare to the DeWalt 60V Li-ion Tools? It's got beefier LG cells and a HEFTY price tag. I accidentally damage it, but manage to recover the blinking red LED-o-DEATH. I test it at 0F, -20C and it doesn't work well, despite marketing claims to the contrary. BUT it has more capacity than the DeWalt. Ruler/Flashlight www.etsy.com/c...
Long Term Projects / ave
i’m jealous. i have a 5 amp milwaukee and i’m im insecure. i’m gonna go raise my truck another 2 inches.
Just cut the muffler off you'll be good.
I used to work in a remanufacturing facility that had some products with lithium-ion batteries. The main reason we absolutely did not ship them at full capacity was for safety. Batteries are more likely to fail at full causing massive warehouse loses.
The tool break downs are cool, but your comedic delivery is priceless!
I couldn't agree more!
Disagree. Videos could be just as informational without swearing, and about half the length if he cut to the chase instead of cracking lame jokes, burning resistors, and generally being a buffoon. There's no doubt he's knowledgeable, and the breakdowns are good like you said, but the "comedic" delivery misses the mark and is a waste of time imo.
@@kevinmonzel I watch for the buffoonery
this
the comedy would be fine without all the vulgarity IMO
"Thats on account of the medication im on... thunk". Oh my god. I almost died. This channel is so great is so many ways. Not just the information which is great, but the presentation. This might be the best channel on youtube.
That was flat out funny!
xcvsdxvsx the best part is hes Canadian so its covered by their healthcare system xD
By far, to me, AvE is the gem of youtube.
Same
9:06
FR40 is fire resistance to 40C
TPV is a rubber compound.
Source:
I work in Injection Molding (not an engineer, just a setup tech)
do you mean 400c?
40C? That’s 104 degrees F. I think you mean 400
haha 40c
14:00 it is Balanced !
Look at the big metal connectors to the Circuit board... These are the balance connections.
I was saying the say thing. This guy is very intelligent and has a great sense of humor but no one person knows everything. Even the smartest ppl miss the most obvious things.
yeah i was wondering, individual lead from each cell won't work, as some of them are parallel to each other right?
Again...my amazement, amusement and absolute merriment at AVE’s use of language. The fact that this guy can fluently roll on as only he does....it’s a kind of evil genius.
Those definitely appear to be balanced. I see 5 banks of 3 cells each, notice how the plates on the side are not symmetrical. I suspect that the "Red Lithium" is all in that PCB and how its programmed and wired and has nothing to do with the cells themselves.
The rental place here (Northern BC) rents out Makita and Bosch electric hand tools, have never seen a Dewalt, Milwaukee, or cheaper brands.
The pack is balanced, you can see the metal tabs going to the controller board on the battery. Since the cells are in parallel, you only need to balance between the 5 sets of 3 cells.
3 sets of 5 cells i assume you meant
No he meant what he said. 3p5s pack, which means Milwaukee paralleled 3cells into 1 and then series wired them. AsOpposed to 5s3p which would mean they series wired first and then paralleled which would require a separate balance lead for every cell.
I couldn't figure out how to message you, so I will just leave a comment.
I want to thank you and all the hard work you put into making these videos. (Drinking can be hard..... sometimes.) The main reason though, you have encouraged me through you videos to be more creative in my own shop. I've been wrenching "professionally" for 7 years now, a lot longer if you could my childhood, and I've always leaned toward the "the book says this" method. I've gotten creative when I've needed to, but watching your vijeos has brought about a different side of creation that I never explored before. Thank you and keep the great videos coming.
if you guys like AvE, you would really enjoy This Old Tony. he runs a machining channel in the same format as AvE. he is worth a view, that's all I'm saying. his humor is right up there with AvE. first class, both of them
This channel is like an R rated this old Tony. Both have good jokes.
Old Tony is if you have mixed company viewing and you don't want to embarrass yourself. AvE is balls to the wall humor with a lot of chooch. No comparison; it's like church porn versus hardcore porn.
@@alexbarnett8541
I enjoy you videos non stop laughs and good tech skill I'll vote for if you run for president life is just a adventure thanks for the enjoyment and still very knowledgeable keep up the good videos. Lamo you would fit in with the guys I work with in Florida. Take care and keep on keeping on.
Use it for ice fishing all the time. Even in below 0 F temps with no problems. I use the 9.0 Ah battery with the M18 Fuel 2704 drill with an adapter with an 8” Strikemaster Lazer auger. I can drill over 30+ holes in 24”+ of ice. I own 5 of those batteries but never go through more than two in a full days ice fishing!
FR(40), according to HP's manual of plastic markings, is Flame Retardant with the 40 meaning "Halogen-free organic phosphorus compounds"
+AvE Yeah, here it is. It's a pretty handy reference
www.hp.com/hpinfo/globalcitizenship/environment/pdf/plasticmarkspec.pdf
Handy indeed. Thank you.
Really cool, thanks for sharing.
Much appreciated!
It's good to know that there is a standard of measurement for Flaming Retards... however 40 flaming retards in one location is far too many for my liking.
u are the best internet dad ever ;_;
😂
Seriously though if every young boy had a father like you this world would be a much better place way less snowflakes
@@cavelvlan25 woah
beer comes in six packs, hours are in six ten minute lots, I have a unified theory of beer-tivity...
Man I got the Scottish curse but even I can tell ya you're getting at alcohol poisoning right there
For some, beer comes in sick-sees also
whoa i never thought of the Rental Store idea. thats genius.
they are balanced, thats what the metal strips going to the pcb is doing.
the battery contacts are at either and opposite end at the fuse and top right plate that's why those traces are so much thicker, the metal traces from each end plate in the mid section are balance connection to the pcb, just because they aren't wires don't make them not balancing traces
there is two size of metal strips, one is about 1/4" wide, those are the balancing 'wires', and a like 1" at the end, those are the power 'wires'.
thank you
The paralelled batteries are essentially one big cell. So the batteries within this cell balance themselves (parallel -> same voltage). You only have to balance the serialised packs, that is what the metal strips are for.
I am thinking you do not know how electrocity works.
Awesome video! I would recommend being a bit careful with that battery after deep-discharging it. One time I accidentally discharged a lithium polymer pack to ~2 volts/cell, and it recovered to full voltage/capacity just fine, but after about two weeks it had puffed up like a balloon. That's not to say your battery isn't still good, but just be sure to keep an eye on it for signs of overheating/gas venting.
It did have balanced charging. Not sure how you missed it. Each set of 3 in parallel were tied into the red board.
so..partially balanced? normally speaking balanced charging means each CELL is capable of being charged independent of others when needed. With well matched cells it's less needed, but even then being balance charged will extend thier life
animefreak5757 they're in parallel. You can't balance each cell when they are paralleled up since they have to be at the same voltage.
just like the dewalt 20 v they only built to balance charge so many cells in a pack and the terminal limit design is set, when they double or triple the capacity they try and have matched cells tied in parallel and it's a cross yer fingers that they stay equal through a life time.
when they triple the amount of cells they don't want to alienate the launch chargers or tools for the new 20v so if they wanted they could have 3 separate 20v packs with 3 times the balance wires going to a battery mounted pcb to switch the balancing throughout and send a mock balance voltage to the charger to let it know things are hunky dory definitely expensive over matching cells to tie together
the dealt 20-18v adapter cost as much because not all 18v tools have voltage protection let alone correct for the 20v or thermo protection
stefantrethan if there's 3 parallel branches of 5 batteries in series per branch, one of those 5 batteries in each branch can easily take up the whole voltage of the branch if it's not properly matched leading to failure of the battery if not balanced
Might want to read up on Kirchhoff's laws again.
From China when they ship out the 18650 they don't send them fully charged mostly for safety reason. From company to company they send different voltages. Normally they send them at 3.7 but I know a few company that send lower than that.
If Li-ion has a problem and some reason has catastrophic failure while in transport or charging it'd be A lot worse if the battery was fully charged.
Yes there something about leaving a cell fully charged storage for a long period of time idk if that's true. I believe to some level.
Sorry for my english. Tired wanted to share the knowledge that I've learned about this. One of my job is battery safety at my job.
TY for the video. Love this one will have to watch more of them.
Loved the video Mr. Bumblefuck, but I do have one thing to mention. That PCB board in the battery pack is the balance board and protection. The nickel strips going from the parallel groups is the balance leads, the solid strips can potentially carry more current than dinky wires, and is relatively more robust.
Yep I agree. There is no need for those to be connected to the PCB otherwise. In the case that there was no balancing the only strips connected would be the two singles on opposite ends.
For some reason, perhaps AvE was expecting one balance line *per cell* , as opposed to one balance line per pack-of-three-parallel-cells?
I think each cell needs to be balanced individually for them to be maintained optimally. This approach appears to be a cost-saving measure.
I believe these LG cells also have a small internal circuit to prevent over charging and over discharging.
He has Makita vision.
The balance charging was quite obvious here but instead of jacketed wires they just ran tabbing wire back to the PCB. In actuality, this is a far more common and robust way to build battery packs since the tabbing wire is very thin and it is easy enough to insulate it with Kapton tape if necessary. Remember you only need to balance in between each series set of batteries so since this pack is 5S3P the 3 cells in parallel all share a common connection with the next 3 cells in the series so a total of 6 connections are needed for complete balancing of this pack and of those 6, 2 are the most positive and most negative terminals in the string so only 4 additional tabbing wires needed for full pack balancing.
I did some research on the storage voltage for Lithium Ion batteries because I've heard so many times to store them half charged and was surprised how little information there was.
Panasonic says in the NCR18650B 3.4Ah datasheet "We recommend the discharged state or partially charged state SANYO shipped out for the long duration storage." and that they ship at 40% SoC.
Samsung says in the INR18650-25R datasheet "If long-term storage is necessary, the cell should be stored at lower voltage within a range specified in the product specification, because storage with higher voltage may cause more loss of performance characteristics." but doesn't specify the range anywhere, and they ship at 50% ± 5% SoC, between 3.60 and 3.69V.
LG recommends storing them fully charged.
And as of May 2016, the FAA requires that lithium batteries not "contained in equipment or packed with equipment" to be transported on cargo only planes and "at a state of charge not exceeding 30 percent of their rated capacity."
Also, they're using the thick bus bars to do the balancing.
"Bears are looking for their last meal, and I don't intend to be it"
Man, you're just freaking hilarious
I work at a family owned rental house in upstate NY. We only rent corded power tools because they cost the same or less and last longer :)
The plaintive wail "That's my favorite lead."
Another reason they don't always come fully charged, is that there is many potential joules of energy stored in those cells. So it can mitigates (lowers) the risk of fire and explosion in transport and storage.
Risk of fire is exactly why batteries do not come fully charged. You Sir are correct
Last time I was this early she put her shirt back on and left
"to know something you gotta learn it" thanks for clearin that up
13:30 you can't unbalance paralleled cells. They are held at the same voltage by the whopping great conductor welded across all the cells. Each bank is connected to the board for balancing the 3 banks.
They can and do become unbalanced, the internal resistance of cells varies from the start, and as time passes the internal resistance will change, causing further creep, meaning while one battery is drained to 40%, the other battery might be drained to 5%. When 'balancing' the cells the controller only looks for that magical 4.2v, so when the first battery reaches the peak, the other battery might only be at 30% (again, internal resistance and other effects, even the thickness of the nickel tabs act like a resistor if they aren't the same). So people claiming that balancing can neve be undone. You are incorrect.
I wonder if the bms resistance tests the banks and bricks the battery if it fails.
I've balanced a few 12ah batteries that only half charge or had a 30 second run time, and they are like new. Some were fairly new and only used intermittently(i think 12ah have an issue).
Have two 4ah and a 3ah that I balanced and they are bricked. The 3ah is in pristine condition and it went from 3 bars to blinking light brick after trying to charge it. All its the 5 banks are perfectly balanced. Thinking of replacing the boards on a 3&4 for $12 each out of principle..
Picking up and fixing 12ah batteries for $100au and fixing them is bloody satisfying.
My wife doesn't understand why I watch this channel so much. Neither do I. But I do and I love it. You remind me of my weird Irish uncle. He's super-smart and muddles up all his phrases too.
packaging science major here that was a blister pack. More accurately a carded blister pack. A clam shell is where the paperboard is inside the plastic which has been sealed around the edges. Thank God im not in charge of designing the marketing wank tho.
Jttv I would watch a video of you packaging something, it's harder than I thought
Jttv why the 3m stuff tho?
I had never thought that there were people dedicated to packaging before. But a second after reading your comment I realised that there has to be.
yup , a need to fill even the most needed position🤔
Sideslip
the product in 9/10 packages is not supposed to take any weight. Whether it is in a box or it is in a clam-shell the the package is supposed to take the weight. If the product is supporting weight it is more prone to damage, companies and consumers alike don't like products being damaged in shipping. Thick clam shells are often used for a few different reasons but most often because they are a theft deterrent... if the product is in the clam-shell its really hard to remove it while in the store. Add an RFID tag to the package and voila it is now harder to steal. They are also used because they can display the item 'nicely' and they are very easy to produce on a thermoforming line.
Not only are you a genius, and an ultimate "detail man" you are a world class comic. I watch your videos and laugh. I've never heard anybody come up with your descriptions and comments - not even close!
from some reason I wanna buy you a beer and hear your life story, you've taught me many things. thanks for the content
The battery is fully balanced for charging by the battery management board. It also protects the battery against over discharge.
No need for balancing circuitry when you have paralleled cells. The voltage is already the same across them. You only need balancing between the adjacent groups of paralleled cells, and AFAIK that kind of protection is already built into the pack.
Always been a huge fan of the “Olfa” knife. Splicing conveyor belts and just awesome knives all round.
When I first seen this and saw that one you have, I got one on eBay imported to the great land “down under” from the US of A. Paid WAAAY to much…but super happy I have one of my own. Fk yes! Thanking you 😁
My dad told me:
"Life is a turd sandwich, the more bread the better."
I come here exclusively for the life quotes to parrot to my buddies and they think I'm Sage 😂😂😂
One other note, it looks to me like the balancing is done through the sheet metal attachments to the circuit board on top. They don't need balancing wires to each cell since there are 3 cells in parallel and paralleled cells are by default, already balanced with each other (they share the same voltage).
He overlooked the bright shiny first thing that stands out 😂
my employer supplies us with Milwaukee tools I've grown fond of them, can't tell u how many times I've used a 18v Milwaukee to jump start my work van
@@speedslayerr the positive and negative are labeled and you can slip a wire into the slots on the battery. I work in a sign shop and I jump LED strips off mine
IMO..100 % this battery is balanced. I've been using lithium polymer batteries in all there incarnations for RC planes and helis for over ten years. These "toys" need massive current draw at times to turn propellers or rotors at very high speeds current in excess of 100 amps is now common with some of the high end helis pulling over 300 amps and more for short bursts, even the common DJI phantom drone needs a decent high current draw if you punch the throttle. These batteries were designed for very high current output initially only capable for short ten second burst or so, through there development over the years they have got much better than the early ones which regularly puffed up and often exploded if overcharged or moreover over discharged them which is why sensing balance chargers are so vital for these. Beyond a certain voltage the metals and chemicals in some batteries start to react and they fall into a thermal run away causing them to swell, heat up burst into flames and explode. There are more than a few people who have burned their houses down whilst charging them and more so leaving them over discharged in a box or cupboard where they may sit for days weeks or even months before deciding it's time to expire. Not so much now as modern lipo chargers and tools will not let you run a lipo battery beyond a set voltage, run them too low and they cannot be recovered. As lipo batteries are used they naturally lose there ability to charge to the same capacity as when new, nothing last forever, some of the cells will deteriorate quicker than others but some other cells may over charge this is important as a charger display "or leds " on the pack stating the charge condition may only tell you the charge total voltage, a "balance charger" will constantly check the voltage condition and even the resistance of each cell i.e. balancing the pack so each cell is equal. I am only saying all this as from my own expensive experiences I categorically know to never leave them on charge unattended or discharged beyond a storage voltage of about 75%. and for myself to regularly check them at least once a week. Modem batteries are definitely more reliable than the early ones but this advise still stands in my opinion only of course.
Wait, but there ARE balance leads...
Notice how her "petticoat skirt" connects to the terminals of the internal cells and how they lead up into the circuit board. It doesn't need as many wires/connections as the 60V battery on the account of the thing wiring 3 cells in parallel permanently (to get more Ah at 20V).
Precisely.
I've balanced a few 12ah batteries that only half charge or had a 30 second run time, and they are like new. Some were fairly new and only used intermittently(i think 12ah have an issue).
Have two 4ah and a 3ah that I balanced and they are bricked. The 3ah is in pristine condition and it went from 3 bars to blinking light brick after trying to charge it. All its the 5 banks are perfectly balanced. Thinking of replacing the boards on a 3&4 for $12 each out of principle..
Picking up and fixing 12ah batteries for $100au and fixing them is bloody satisfying
18:29
"That's my favorite lead!"
lol, subbed
In all fairness that is a very nice fluke alligator clip lead. A set of them cost around $40 US also my favorite leads lol
This is an old video but I just bought two 9.0 batteries from "The Homeless Despot" in Portland, Oregon. They were both 1/4 or less charged. I've always wondered about lithium batteries. I serviced aircraft batteries in my sailoring days and Ni-Cad and Lead batteries would be kept fully charged and run through an automated discharge/charge cycle every 2 or 3 months. I've been using these batteries (5.0) for 8 years and never bothered worrying about how they were stored. I used them in the winter in northern Minnesota and the summer in Portland and they held up fine. They got a little sluggish in extreme cold.
you are a national treasure sir
Apparently (and yes, I am a scientician) the ideal scenario for Li-ion is to keep them plugged into mains at all times as the discharge is what shortens their lifespan. Failing that keep them at 100% charged as much as you can as in even if you use them for a few uggaduggas on one screw give it a full charge once you're done.
half charged Li-ion batteries must weigh less to transport than fully charged ( fewer electrons to ship... ) :-)
Actually true. Just such an inconsequential amount of extra mass that you'd never notice it. Like, a fully charged vs. empty Tesla Model S battery pack is something like a grain of sand in weight difference
Actually to increase shelf life the manufacturer of cells ships it to battery manufacturer in that range.
Also each cell has a cut off voltage of about 3.1-3.3V so when you multiply by 5 you get 16.5V cutoff. That's the lowest voltage the pack would be able to provide so no wonder it showed 1 bar. When fully charged it's 4.1V- 4.2 so it's 20.5V or 21V depending on the overvoltage cutoff
$250.
$250.
$250.
...Isn't extortion illegal?!
KrazeeCain those lithium cells are about 10 dollars each at retail, so it's not all that bad.
+AnAngryMudkip bullshit the average guy can get 18650s for like 5$ apiece and you know Milwaukee pays way less than that when buying them in bulk
My internal bargain meter is flickering, but I'm too tired to think about - I just know you shouldn't look at it this way.
Tactical Custard cheap ones, yeah. not these high end 3000 mah cells. You'll be lucky to get them under 9 dollars at retail. Obviously bulk buying is cheaper...
Milwaukee doesn't buy retail they just know they can get away with ripping you off worse than a high school weed dealer
Metal traces leading to the PCB are the balance connections, simpler to punch them out with the rest of the sheet, and then bend with a jig. Saves a join operation during manufacture, and saves on that expensive copper wire as well.
I dunno about the science, but in RC plane/drone circles everyone has experienced ruined batteries because they left them fully charged or fully flat for too long.
It really does ruin them pretty damn fast.
This is LiPo though, no idea about Lion.
Those 5 lines going up to the charge board are balance lines. note how they're welded to the battery ends, they can carry the current, they're used to balance the cells. only 5 are needed because the parallel sets are self balanced.
Take a closer look at the top of the pack. Those traces running across the top from the side plates are the balance lines I think.
It balances through the tabs that you can clearly see from the top. just look for 5 "things" and there you go. One on the pos, one on the neg, and 3 more. Love your videos!
OMG please write a book with all of your sayings. the comedic deliver and joke per minute is damn near up there with pryor
My local US Home Depot had it on sale $200 for two packs including a fast charger. Didn't think much of the fast charger but the 9.0 was like wow!
As actual Battery Engineer, I can confirm, any li-ion battery wants to be stored less than 50% SOC for long periods of time. This is called "Storage Charge". When the battery is full, the materials are "stressed" and degrade quickly. Some cell are extremely sensitive and can be destroyed in a just a month or so if stored at 100% SOC. This is common knowledge in the battery industry. I'm not going to quote sources, if you really want to educate yourself, please do so, resources are plentiful on the interwebs.
AvE spend 5 minutes and Google it my friend.
Gabriel DeVault you lost the argument by stating you are a Battery Engineer. AvE has talked about this issue on a video before. It would of been better, you never mentioned you are a Battery Engineer.
Yeah, I mean why would you listen to a rocket scientist about how rockets work? They are probably fully of sh*t anyways right? Never trust anyone! And definitely don't spend a whole 5 minutes researching lipo battery storage on the internet. None of that can be trusted, it's not like it's a giant industry backed with real science...
I'm not a Battery Engineer but a vape engineer.
95% of Rocket Scientist don't throw out degrees. Since a Rocket Scientist holds a degree in Aerospace, Mechanical, or Electrical engineering since their is not an actual Rocket Scientist degree. This means a Mechanical engineer with knowledge in rocketry can classify as a Rocket Scientist and never spent a day at JPL.
Rental places are usually Bosch, Makita, or Milwaukee for cordless drills and drivers. Hilti for concrete and Bostitch air tools for carpenters. Having Millwaukees with fully charged battarias has helped me in the past.
EVERY manufacturer tells you the same thing on how to store batteries / at what level of charge, yet AvE knows better again.... awesome. That is true for your camera batteries, electric car batteries, 3rd party replacement batteries... Jesus Christ.
Which part of "every" do you not understand? I just bought 4 extra battery backs for my Sony DSLR - it says the same thing; if you look in to how to maximise the life of electric car batteries, they say the same thing, etc, etc... you buy and abuse so many battery packs, why don't you RTFM for a change? That's my source! I actually read shit! -- I know, it's beneath you, but anyway... then I don't have to type out what you can readily learn everywhere. It's really not difficult... and so whatever you were referring to there was not "pseudo science", it was stating what everybody in the industry says anyway.You don't need Steven Hawking's signature attached to it...
Why am I not convinced of your eagerness to learn? Well, because I just typed "why to store li-ion battery at 50% charge" in to Google, and if you start reading any of the links that show up even for 1-2 minutes, we would not have this discussion right now. Seeing how easy it would be, and your refusal to actually go about it, I really don't know how I can help you on this one... How about Milwaukee ship fully charged batteries because there are dudes like you that get pissed off if they unpack a shiny new toy and cannot take it to task for 5 hours because they have to charge the batteries first? And then they take to RUclips and make a disgruntled, uneducated video about it, where they tell their I-don't-really-give-a-fuck audience to buy that other brand instead?! Who knows?! Who says Milwaukee is an authority on anything, especial on a component they have no business with producing, but which they source from 3rd parties themselves? I can only guess... either way, I do not see how Milwaukee doing something sub-optimally is an argument against what everybody in the battery producing industry has to say on the topic.
There are a lot of things that EVERYBODY did the same way that turned out to be based largely on hear-say and groupthink. Maybe they're right and maybe he's wrong, but props to AvE for challenging the status quo when there's no good science to back up "that's just the way we've always done it".
+Baerchenization Appeal to popularity. By the same logic bleeding people for illness was a great idea back when all the doctors believed it.
+Baerchenization fuck, you are a special kind of stupid. he's not looking for opinion or blanket statements. he wants proper, scientific studies with actual data for evidence. not "do this because we make them". how do you not fall down more?
The pack balancing 'wires' are formed as part of the nickel plates welded onto the cells... You can see them come up and fold over the top of the battery before they head under the PCB to make a connection.... so they are balance charging as normal.
It's fully charged as a courtesy since Canadians don't have electricity yet.
I by no means have an actual study about batteries to cite, but I've got plenty semi-useful anecdotal information.
When I bought some high-quality 18650s for my flashlight, they came with an info label from the manufacturer saying to fully charge them for storage, and to recharge them every three months, even if unused, to maintain battery capacity; they also warned that discharging them below 30% may permanently reduce capacity.
My Li-Ion powered jump-starter has almost the same exact instructions.
I've been doing that for two years, and after 3 months of sitting, it still only takes them about 5 minutes to get back to full charge. Same as when they were new.
do you get your medical to cover the cost of your doctor prescribed beer ?
lol
Charles Boston I'm still looking into claiming it on tax
Dude 1 million subs by the end of the month I predict! Also please tear down the newer 12Ah battery. I really wanna see the 21700 cells model numbers and I can't bring myself to crack mine open
I was just at Lowes today and they had Milwaukee tools for rent.
They are in three-gang charge banks, 3, 6, 6 bank on one side then 6, 6, 3 bank on the other side. To charge the first set of three you use the first pad on each side, the second set you use the second pad and first pad, etc... In interesting way to use the geometry of the battery to avoid charge sense lines so long as you can switch the high current through some nice mosfets or something.
You'd think the battery would have over discharge protection...
Better to build it into the tool instead, so you can tell if Sir Bumblefuck hooked the battery up to his popcorn machine.
James Taylor there is, but it looks like he defeated it by not using it in the tool. some of those other terminals on the battery signal when the battery is good to use.
Micah Erickson not on the new lg battery's I have the same battery's for my head lamps
the tools have the minimum voltage shut down built in the other terminals are for balancing charging
Firstly, 18650 cells used in power tool battery packs have NO in-built protection it's on the PCB inside the case along with the cells.
Secondly, the extra connectors on the battery pack besides the power terminals are not for balance charging - if a battery pack has it it is handled internally on the same PCB as mentioned above.
Oh my god, "I've got to take my socks off to count that high" it took me a minute to get it, and I laughed so hard I woke the family up. I'm going to steal that joke.
This went way over my head, could you (or someone else) please explain this to me?
@@dirtyspah counts to 10 on fingers..then uses toes for 11 to 20...I guess
@@iancampbell5793 Cheers, now that I get it I can't believe this joke had to be explained to me
Well the power is only tapped from either end of the seriesed bunch of batterias, so the balance leads would be the little chromy shiny looking tabs of metal going straight from the paralleled up battery plate thingys to the PCB, wouldn't they? You only need one lead per paralleled group, not per cell.
cells inside the paralleled group can fall out of balance as well
"That was my favorite lead!!" Lolol that hit home man
Glad to see that the $70 price that's the cost today, is a heck of a lot more affordable now.
Well first off if you find the xc9.0ah for $70 you better buy them up also the $250 was Canadian
First video I have stumbled upon of this channel, and I have to say, how informative, and awesome you made this video. You my friend, have earned a new subscriber, I like your style!
If it came 90% charged, shouldn't we assume it left the factory fully-charged, and the difference is due to self-discharge?
I do not subscribe often... I do not subscribe to much, but when I do... Its worth it! Hilarious and informative man, Subbed and Liked!
Man that is one hi priced batteria!!
The 9.0Ah in this video is fitted with many balancing tabs, otherwise it will only need two tabs( + and -) going to the circuit board. Bosch is one of the brands without balancing tabs. The cells are matched and binned in factory to achieve reliability.
Milwaukee has switched to the h.o line to compete with the other new platforms. They've got bigger cells now
You're correct. The C.P and X.C lines use 18650 cells and the new H.O line uses 21700 cells which are larger. They are also able to charge and discharge faster. The new Milwaukee "Supercharger" will only charge the newer (high output) batteries faster. If you're using the older batteries it will only charge them as fast as the "Rapid Charger".
Also a little fun fact: The naming of the cells is based on their size. Ex. 18650 means that the cells are 18MM by 65MM and the 21700 cells are 21MM by 70MM.
The balancing is not done for every cell, but for every parallel set of cells (if they are in parallel, there is no way to balance each cell independently - think about it). They are doing it through the smaller metal strips that go to the PCB.
you can buy those 18650 batteries anywhere. nothing magic in those battery packs
Not a freakin clue what you're talking about but chuckled till the end . Learnt not to overthink Milwaukee too. Their tools are red and the batteries are lithium.
learning is why i watch your videos! keep up the good work!
I'm loving the occasional "one more time" reference. Can't beat Pinky Malinky quotes
Day 756, I am still stuck in that Vise.
X-D
LOL
As a racing drone pilot who stores hundreds of lithium cells over winter. Storing them at storage voltage of 3.8V per cell vs ones I forgot about and left at 4.2V per cell over Winter. All the ones stored at full voltage were too saggy to fly and the ones stored at nominal voltage were all still flyable. Just my experience.
Millsucky makes a 12 amp hour battery now
A balance charger only works by how many batterias are in series. So this is 5S3P so there are only 4 balance nodes between the stacks plus an minus. No wires are needed since the steel conductors that are spot welded go up to the BMS/ balance charger.
No balancing? What do you call the connection from all the "connection-plates" to the circuit board? Ofc it's balanced - high-drain application needs balancing or you'll burn down the house sooner or later.
The balancing circuits are in the tool itself witch is one of Milwaukee's things with all their batteries...
"Works in the cold... we can test that."
Ohhhhh yeah. Continue please.
looks higher qualtiy inside then the dewalt.
Love to see a tear down of the new(er) 20v 6ah batteries.
They supposedly use larger cells than normal 18650. They are alot bigger in overall size than even the 9ah flexvolt ones. Huge!!!
Most cell phones you buy will come half charged. So you're saying it's just an old wife's tale that this is to preserve the integrity of lithium batteries?
AvE huh. TIL
AvE So how does that relate to Liposuction?
Two reasons I know why Li-Ion batteries are shipped less than full charged.
The data sheets say that is better for long term storage to help get more charge and discharge cycles. Some people freak out that the lower voltage will mean the battery might be DOA but in all the tests I have done (2 so far of about 12 total samples) nada. The 40 volt I developed 5 years ago finally got down to two lights on the fuel gauge.
The second reason you will start seeing less than a full charge and Ser Dyson even plasters it on his very expensive V9 pole vac, is that the IATA and other transportation companies won't air freight batteries unless they are at 30% State of Charge or less. Apparently, they don't like them blowing up a full charge in the cargo hold when pressures and other environmental stuff happens. Those are the two reasons I design batteries not to ship full charge.
Google the cell number on the batteries and sometimes you will find the data sheets from the manufacturer.
Each phone is tested? Must be nice to live in Wonderland :)
Serious, if they all were tested, how come customers get phones that blow up or melt? It happened only recently with the latest Samsung.
Stefan Van Reeth It's the battery that's tested, and it's tested outside the phone itself.
it does have balance leads, parallel cells dont need balance lines, series cells do and you can see the tabs from each series junction going to the board
Ahh man, I love your jokes and dark humour
The pack is balanced via the metal leads that run to the BMS. It balances 3 cells as one. No manufacturer to my knowledge balances cells individually, especially for a pack that size.
So, the mica is there to prevent schist stains? (3rd, in a series of rock jokes.)
Epic under rated show....the cast is stellar
Your quote on learning was gold... thumbs up
Just started watching your videos. Highly entertaining. Great job.
Colour of the cells is optional, I just updated my Unilite inspection lamp with a pale blue, 3600mAh LG cell. The Samsung cell it replaced was pretty much the same colour. Interesting thing about the new cell was that it had some difficult to read text on the wrapper. Once I got my eye loup screwed in my aged eyes showed me that the text said 'If you can read this text the cell has been overheated and must be discarded'. The words were printed in outline with, I think, intumescent ink, designed to change colour and fill out to be visible when cooked.