Milwaukee m18 bad cells replaced FULL INSTRUCTIONS

Рет қаралды 65,842

Жыл бұрын

There are 2 types of M18 battery, for repacking the other type check out my other video.
This type of pack requires spot welding to replace the cells.
The factory cells are Samsung INR18650 20R (2000mah with a 22a max discharge rating). The replacement cells should not have a discharge rating of less than 22a.

Пікірлер: 256

@fatboyblah33 14 күн бұрын

Nice video mate! Was quite surprised when I realized that's actually my battery, thought I'd give it a go myself this time!

@spinnanz 14 күн бұрын

Tool packs are def the best type of battery to learn on!

@rayjokkel3817 6 ай бұрын

could you post links to websites for the tools and supplies?

@mpitogo1978 9 ай бұрын

After watching your repair, I braved doing mine. My battery is a newer M18 5.0 encased in plastic and each cell pair needed to be pushed out of the plastic housing. 8 of the 10 LG cells decided to go dead 0v. One pair was still going strong. I tried to kick start dead cells but it wouldn't hold a charge. Thankfully I had kept the cells from a broken (plastics) Hoover cordless vacuum which used Samsung cells. Battery was in great condition and I kept the cells charged with an 18650 charger. I swapped the cells in and bam its back to life. I needed to plug it into a charger to wake up the electronics. I don't have a spot welder, I only have a resistance soldering iron, I just soldered the tabs in. With a resistance soldering it heats up the joint quickly and then with my foot switch take the heat off and cool it down quickly. Not ideal but it works. I'll keep it around for light duty work. Fan, portable vacuum, etc.

@TheEnvictous Жыл бұрын

I needed this. Thank you, very simple and great video. I can't wait to see the old M18 repair.

@spinnanz Жыл бұрын

Turns out the old maybe the new and the new maybe the old, but either way I'll show how to do both!

@mikeshobbiesandrandomstuff Жыл бұрын

The lithium batteries tend to die in most power tools because the manufacturer purposely gives incorrect battery care instructions so we damage them and buy new ones. I have been using the lithium ion battery care instructions I got from basic battery care online instead of the info from manufacturer's as they tell you to store them either fully charged or discharged witch is not good for them at all. The proper storage method is around 50% charge not to high and not to low. My batteries are still going strong with zero issues. I highly recommend it.

@spinnanz Жыл бұрын

100% agree. I always recomend storing with 2 or 3 out of 4 lights going on the charge meter.

@DIYhabitat 5 ай бұрын

I enjoyed your detailed step-by-step video. Thanks mate.

@dlouw7 Жыл бұрын

Would love if you could post the video for the older style Milwaukee batteries as you mentioned. But great video and appreciate the walkthrough!

@Popajaja Жыл бұрын

Today I successfully replaced the PCB on the Milwaukee M18/5Ah battery. When I soldered all the contacts and pressed the control button, none of the LEDs lit up? But when I put it in the charger the battery worked like new because the Milwaukee Intelligent Charger unlocked the battery!

@RandomCapeDude Жыл бұрын

Great video! This is the best way to get good batteries for a reasonable price. Most generic batteries are poor quality; some only being 5s1p and the other 5 full of sand. Also a lot of the 18650s used in generics are not rated for the current/under capacity/used/etc

@Deathless2288 12 күн бұрын

Thanks for the vid. Learned a few new techniques

@slopoke22 4 ай бұрын

Subbed to ya for this vid. Ive got a couple these. Whether they old or new they look a lil different. Im gonna try to repair them, thanks for the good vid on em.

@Aspire198 5 ай бұрын

Hey, good video, dod you end up uploading the video for the older style fof battery? Couldnt find it on your channel list

@imzzaudae 2 ай бұрын

Real nice work!

@paulbolton8511 Жыл бұрын

Hi mate can you post a link to the other video of you doing the older type milwaukee battery cheer

@gregoryjamesaustin 2 ай бұрын

Awesome video. You made it look easy.

@spinnanz 2 ай бұрын

It is easy after doing heaps!

@indy1234567891011 6 ай бұрын

Awesome video, thanks.

@davidbarker3591 Жыл бұрын

Hi, i watched your video, very good work. One question for you, I could not make out what you did with the heat temp sensor. Did you re use it, or skipped it? Thanks!

@spinnanz Жыл бұрын

The heat sensor is left in place, it sits between the nickel and the outer case. I should have mentioned it, you need to a little careful when putting the internals back into the case to not pinch the sensor. If it's damaged, the pack won't charge.

@dezhangood8729 Жыл бұрын

Good video. Could you show how to rebuild the newer M18 batteries? Thanks

@spinnanz Жыл бұрын

As soon as I get one I will. I've still to post up the video for the 2nd type of m18

@Jimmyhunter888 Жыл бұрын

Thank you very much

@Popajaja Жыл бұрын

Good afternoon, hobbyists I would recommend everyone who repairs Li-ion batteries to make sure to use all the necessary protection. First and foremost, safety glasses nearby, temperature-resistant gloves or/and long blacksmith's pliers in case of "fireworks", a metal bucket filled with water. It is also important that the repair is not carried out on a metal surface (short circuit - high amperage), e.g. in the kitchen. In addition, there are no flammable liquids or other flammable materials near the work table. Before replacing defective Li-ion cells, make sure that they are completely discharged (I do this with a 36V/400W lamp). Another hidden danger, the voltmeter shows that the cell is empty, that there is no voltage and it is full or overcharged (cells with protection)? I check that additionally to be completely sure, at the positive pole (+) there are small passages and between them, with a narrow screwdriver, I try to press the safety membrane (mechanical switch) down and then measure the voltage again. Many new cells with high capacity and high currents do not have this protection. Each Li-ion cell has a label with the manufacturer's name and what type it is, and it is not difficult to read its characteristics (protected or not) via the Internet. Hello everyone and take care!

@spinnanz 11 ай бұрын

Also, don't wear a metal watch (like I do...), rings or other hand jewelery while carrying out a repair.

@Mogman150 5 ай бұрын

Metal bucket filled with Sand, not water!

@Popajaja 5 ай бұрын

@@Mogman150 Now the question is can water be used? Well, yes and no. Water is commonly used because that is what we have lots of and it is really cheap. But it is used mainly to cool the scene, not necessarily to put the fire out! The problem is that a Li battery fire is actually not the kind of fire we usually think of when we say “fire.” A fire we think of is usually a combustion of a fuel of some type combining with the oxygen in the air to release heat and create oxides. A Li battery fire is actually an electrical fire like a short circuit. You can’t put that out with water, but you can cool it to keep it from setting the surroundings on fire, too. So, does water work? Well, it does keep the “fire” from spreading even though it doesn’t put the “fire” out.

@Jeff-rk8hq Ай бұрын

That seems to be a very consistent spot welder, do you have a link where that model can be had, I actually got one from Amazon and i think it’s brand is “ sequre “ but the bad thing is that it will blow thru one time and seriously the very next time it it’s weak af and gets like zero penetration and that’s with me very lightly like barely making contact with the leads not pushing hard at all as it seems to get more power when used that way, I just don’t have too much experience with spot welds in particular but they work well when the get enough penetration for sure but finding a cheap one that’s capable of good spot welds is harder than it you’d think

@Popajaja Ай бұрын

@@Jeff-rk8hq I have one, nameless, small, stationary spot welder bought on E-bay. The first time it was used, it tripped the home FI fuse (most likely because of the condenser in the device). I'm not satisfied with the quality/strength of the weld either. It seems to me that professional battery manufacturers crimp the metal strips before welding so that they have a bump on the mating side? If there are protrusions, then higher amperage on a smaller surface has a better effect/quality of connection? Greetings from Switzerland

@user-bq1xt5eq1y 7 ай бұрын

I don't have a charger but I've changed the cells of my milwaukee battery and the lights don't turn on😂😂 Luckily to find this video

@Jeff-rk8hq Ай бұрын

On some of the replacement bms they say if you don’t have a charger when replacing bms (aka the chip in the pack ) if you short pins 2 & 5 on the main pins …it will activate the electronics

@ochokoatro 9 ай бұрын

GREAT! Question: Since you have opened the battery don`t u think it would be a good idea to clean the Circut Board.. I ask it because, as it looks, they accumulate a lot of dirt and dust that could affect them.

@user-bq1xt5eq1y 7 ай бұрын

Usually this circuit board is covered by a thin insulation layer, so normally don't need to remove the dust unless its very dirty

@RexenPrime Жыл бұрын

This video was great, got an ETA on when youll upload the video for the other battery type? Im just starting to try to fix these batteries myself and the ones I have are all the other type. Is there really much difference in how you have to repack the other ones?

@spinnanz Жыл бұрын

I'll post as soon as I get one in a d repair it, they aren't common here. The difference is they have a combo of spot welding and soldering to repair them as it's very hard to reliably spot weld to the factory nickel plated copper strips.

@davidbarker3591 Жыл бұрын

I'll fill you in on the soldering. I've soldered quite a few times to the factory nickel. 1...use 63/37 leaded solder with rosin core. The 63/37 has the lowest melting temp of solder...20* cooler than 60/40. Forget the lead free solder, total junk. Use Rosin flux, I like the paste. Pre tin the strip and battery cap. When you solder the two, lay the strip on battery, iron on top of strip, not on iron. Push down and you'll feel the iron sink. Get off the battery. Done. The tinned soldered melted. 100% success rare this way...

@georgesmith8988 Жыл бұрын

Hi, great video, what size nickel strips are you using?, and are you reducing the welding current when connecting strip to strip?

@spinnanz Жыл бұрын

The strips are 0.12 - 0.15 however I now do 2 layers so they total 0.24 - 0.30. When I weld the new strips to the original strips off the BMS (so no cell under it), I drop the weld time down. It's a bit of experimenting to get thr time right, depending on the welder, the strips, and how charged the batter is that the welder is using.

@JamesJohnson-de7xd 6 ай бұрын

Great video, only thing, you were making adjustments to the welder, realize this was for different number of layers, would be helpful if you gave the settings, not all welders perform the same but it would give a tip to the percentage increase/decrease required.

@reddirtwarriors4846 Ай бұрын

What would happen if you kept the spot welder set to 45 for the main strip (from circuit board)? You mentioned you dropped it down to 20. Would it just create a deeper spot weld if you kept the setting at 45?

@spinnanz Ай бұрын

With no cell under the strips to dissipate heat, a too long weld time can cause the welder tips to burn right through the strips. The actual weld time for any welds will depend on the welder. 45 on one may be 35 or 50 on another etc. Better spot welders also adjust the actual joules at the probes, rather than just the weld time, which is how this and other cheap welders use to adjust welds.

@frodemolland6249 Жыл бұрын

Hi, could you tell me settings on the spot welder, when you change Between 18650 and on the main Nickel Strip. And what Kind of car battery, Amps and CC

@spinnanz Жыл бұрын

Nickel to cell I use 45ms, for new nickel to original nickel I use 30ms. I now repeat the new nickel step and make it 2 layers thick for extra capacity. I need to do an updated video. The battery is a generic 360cca sealed lead acid.

@frodemolland6249 Жыл бұрын

@@spinnanz I need new spot welder 😀 mine cant spot weld through new nickel Strip to the original one

@anthonydinardo7560 Жыл бұрын

Great vid! Question: I was under the impression from reading other vid posts that Milwaukee has a counter built into their circuit board that allows them to tell how many times a battery has been charged if and when they were to ever come in for service or warranty work?. If so how to overcome this if it happens to put restriction's like possibly not allow it to be charged after reaching this limit?

@spinnanz Жыл бұрын

If you hold down the battey check button SOME do flash a code. I assume this can be used to check maybe the age or charge number (like snap on packs) but I've never worked it out. I think it's very unlikely they build a maximum number of charges thats built in to the battery.

@nzoomed Жыл бұрын

@@spinnanz I was reading that the battery board resets a chip that prevents charging if it detects the batteries removed and renders it useless. Have you heard anything about this? Ive just repacked one and welded the new cells into it and no more lights come on when pressing the button to check the charge. Apparently you need to keep power applied to the unit from another power source while removing the cells. Any ideas?

@spinnanz Жыл бұрын

@@nzoomed check the end of the video. Milwaukee batteries won't reactivate the LED level meter until its been put into a charger. Snap on are like this too. Some other batteries (ryobi as an example) have an earth and "rst" contact that must be connected for a couple of seconds to reactivate the battery.

@nzoomed Жыл бұрын

@@spinnanz OK, thats good to know, there must be a bit of misinformation going around perhaps? I dont have the charger for this unit, but would a lab power supply be enough to test this with by setting the current at a low amount? I am repacking this for a friend.

@spinnanz Жыл бұрын

@@nzoomed I've never managed to get them to reactivate by applying voltage. I assume there is some sort of communication between the charger and battery for this to happen.

@georgeg8130 Ай бұрын

Awesome video. I have question about 18650 battery brands. Does it have to be exact brand and model or just 18650 with same specs? What you recommend?

@spinnanz Ай бұрын

The factory 4ah packs have Samsung 20r cells with a rated discharge of 22a, the 5ah uses 25s cells with a rated discharge of 20a. You would be safe to use any brand cell with a max discharge rating of 20a or above.

@georgeg8130 Ай бұрын

@@spinnanz thank you.

@floriantrif843 10 ай бұрын

Very nice 👌🏻

@jasonhayes284 Жыл бұрын

I have a couple of 12ah batteries that need this kind of replacement, do you know what cells they use? Also where can I pick up the spot welder?

@spinnanz Жыл бұрын

I think they are 21700 4000mah cells. If I'm right there would be 3 rows of 5 cells. The welder is from ali express. KZfaq has a good bunch of reviews from a guy called "Luca" on them and modifications that they need

@tannerwyse6007 Жыл бұрын

I've got a 9ah battery that needs this and I have the same question about what cells to use, also thank you very much for the info!

@spinnanz Жыл бұрын

@@tannerwyse6007 in a 3/4/5ah pack the factory cells have a discharge rating of 20a so ideally the cells used have a discharge rating of 20a too. The 9ah packs have 3 rows of 5 18650 cells instead of 2 rows so the 9ah can use cells with a lower discharge rating. The welder is available from ali express but need modifications to be reliable.

@tannerwyse6007 Жыл бұрын

Man you literally are going to save me some big time cash. I have around 10 or so batteries that all need new cells. I cannot thank you enough.

@davidbarker3591 Жыл бұрын

I bought a Seesii spot welder a bit ago. 10,000 mAh, adjustable pulse delay, 80 gear (power levels). Have repaired 20 packs with it with zero modifications and it will spot .2mm nickel.

@nopemerp Жыл бұрын

You know I am curious to see how the discharge rates 10a (20a total) for the 18650BD compares to the 20a (40a total) discharge from the 25r and the 30q with the 15a discharge (30a total) in real tool usage with performance. With driving 4" lags into wood you've got me inspired to try the combos out. As I have 4 pack out of warranty I fixed 1x 4.0 by rebalancing. the others 1x 4.0 and 2x 5.0 have spot welds that came off the cells i may experiment with the 4.0 not sure yet though lol

@spinnanz Жыл бұрын

I suspect when used in general light to med duty stuff like drills, torches and screwdrivers the 18650BD will be fine. However id also suspect heavy draw items like saws and impact drivers will give them a lower overall lifespan as this will draw more then their rated 10a per cell.

@spinnanz 11 ай бұрын

I've just had my 1st repack of a repack. It was a dewalt 2.5ah which uses 1 row of 5 cells. It was repacked using the Panasonic 19650bd cells and lasted 2 years. Testing the cells the, worst cell has now has a capacity of 2880mah capacity, which is a 10% loss from 3200mah. The only reason it was repacked is that the BMS failed so I swapped the cells out to see what they were like.

@yellowfin524 9 ай бұрын

Is the spot welder anything special or did you just get a generic one off of Ebay?

@spinnanz 9 ай бұрын

£11 from Ali express, althogh it's been modified to be reliable.

@brentjohnson6654 Жыл бұрын

New subscriber here. I am trying out a M18 impact driver to see if I want to migrate from Ryobi to Milwaukee.

@spinnanz Жыл бұрын

A huge proportion of the industry seem to use Milwaukee. I think Dewalt would be 2nd. 3rd would brands like Hilti, Hi KOKI etc which are prob better than Dewalt but aren't very well known.

@anthonypuccio9575 Жыл бұрын

Great tutorial. Now were do you get the batteries from?

@spinnanz Жыл бұрын

I buy from a local supplier, but shipping overseas is pretty $. Your best bet is to join an 18650 battery building page on FB try find a local supplier in your country through that.

@yomongamer5841 3 ай бұрын

Hey were can I buy the battery for m18 battery please can u send me a link or anything that will help me find battery cells for m18 5.0

@insidedemonz1739 Жыл бұрын

Anyone know where to buy a replacement shell for an m18b4 battery? 4.0ah 10x 18650. I have a cracked outer housing i'm looking to replace - thanks

@spinnanz Жыл бұрын

I'd be looking to buy a factory case with faulty cells rather than an aftermarket one. You'll need to make sure it has the same internals as yours though as they only fit the type of internals they come with.

@davidbarker3591 Жыл бұрын

Amazon has a few kits that match awesome. It includes PC board, battery holder, pre cut nickel strips, everything except batteries for $17.99. If you just need cases, $11.99

@andrewperrett3177 Жыл бұрын

Hi, do you have any vids on overhauling m28 batteries?

@spinnanz Жыл бұрын

No sorry, the only m28 I did was a kit I built from Ali express. The kit itself was OK but the case quality isn't up to the standard of the genuine packs. Over here the m28/v28 suff is very rare.

@andrewperrett3177 Жыл бұрын

@@spinnanz ok, thanks mate

@josephhalas1676 7 ай бұрын

What is the name of that spot welder and where do you get one?

@spinnanz 7 ай бұрын

It's a generic red "mini spot welder" on Ali express. Depending on the exact model you get, it may need modding to be reliable.

@josephhalas1676 7 ай бұрын

@@spinnanz found it on ebay for $25 thank you

@Insain330 11 ай бұрын

I have a M18 5.0 Milwaukee battery pack that I replaced the cells just as you did in your video, spot welded and the whole nine yards. I replaced the cells with the same brand and part number (Samsung INR18650-25R) that I purchased from 18650 Battery store but the pack will only charge to ¾%. Any suggestions?

@spinnanz 11 ай бұрын

Were the cells all the same voltage when installed?

@Insain330 11 ай бұрын

Yes, 3.6 volts

@spinnanz 11 ай бұрын

@@Insain330 what's the total voltage now? Is it possible the full charged led is faulty?

@Insain330 11 ай бұрын

Fully charged the package showing 18.8 V, but Only three LEDs light up on the front of the battery. I have a stand light that I use to discharge the batteries and test them, it will burn the light for about an hour and a half where it should last about three hours Maybe I need to go to a different distributor and get my cells.

@spinnanz 11 ай бұрын

@@Insain330 full charged should be pretty close to 20v. Have you measured each of the 5 banks? It should like one is lower than the rest. Generally they are usually within 0.01-0.02 of each other.

@garyrichards6041 Жыл бұрын

Here in the US where I would take the dead or almost dead cells they won’t take them unless they are in the battery case. Where can I take them now? Anyone??

@Nyck461 11 ай бұрын

Good video. Please inform your viewer the number of the new battery.

@spinnanz 11 ай бұрын

It says in the description what the original cells were. I make no recomndations on what cells to use to replace them other than they should have the same max discharge rate as the factory cells.

@chansouvandy2850 Жыл бұрын

Would you do this replacement for the customers here in the U.S. ?

@spinnanz Жыл бұрын

I would but to ship to my country and back would likely make it more expensive than just buying a new battery.

@delpsdayoff3372 Жыл бұрын

Sooo.. big question.. each cell is 3.7v but what amp hour? And I'm assuming depending on the pack amp hour.. rather it's a 2ah or the big boy 12amp hour. That the 18650's have various amp hours.. for example.. a milwaukee m18 3amp battery.. are the 18650's 3.7v 1.5amp? But how would this work for the 5amp hour?.. and with 10 batteries I'm assuming 5 are series other 5 are series.. then parrellel together.. but how the heck does the 9 and 12amp hour work? 15 batteries?

@spinnanz Жыл бұрын

For the 3, 4, 5 and 6ah the cells are in 2 rows of 5 cells. The cells mah is multiplied by 2 as there are 2 rows, so a 3ah uses 2 rows of 1500mah (1.5ah) cells, 4ah uses 2 rows of 2000mah (2ah) cells etc. The 9ah uses 3 rows, so uses 3 rows of 3000mah (3ah) cells to obtain 9ah. The 12ah also uses 3 rows but it has 21700 cells instead, with a capacity of 4000mah.

@delpsdayoff3372 Жыл бұрын

@spinnanz very informative! 21700 huh.. that makes sense! Appreciate that alot!

@ernestorodriguez189 Жыл бұрын

Can you tell me please what kind of cell Milwaukee 12ah uses and how much mah are.thank you

@spinnanz Жыл бұрын

The 12ah uses 21700 cells in 5s3p configuration. The cells will be 4000mah each.

@ernestorodriguez189 Жыл бұрын

@@spinnanz thank you so much bro. gracias

@gdejackmo Жыл бұрын

Where do you buy your replacement cells

@spinnanz Жыл бұрын

I get them from our local ebay type website from a seller who repurposes cells. He tests then guarantees their capacity at not less than 3000mah. It works out about $25us per repack.

@MrMariner34 Ай бұрын

Does anyone know what size batteries are in the 12 ah packs?

@spinnanz Ай бұрын

15x 4000mah 21700 cells.

@kamborambo8705 Жыл бұрын

I heard milwaukee boards have protection if they completely lose power they won’t power on anymore please confirm

@mpitogo1978 9 ай бұрын

Yes true, mine was fully dead. No lights. After replacing all the cells, still no lights. You need to wake it up plugging into a charger. That was the case for my, it may vary.

@jacquestuber628 8 ай бұрын

@@mpitogo1978how do you wake it up

@abelgarcia480 8 ай бұрын

What type of spot welder your using

@spinnanz 8 ай бұрын

A mini spot welder from Ali express. Depending on the exact model, some need modification to work reliably. a.aliexpress.com/_mMymCAE

@ej9236 Жыл бұрын

What size nickel plate are you using ?

@spinnanz Жыл бұрын

I use 0.15

@spinnanz Жыл бұрын

I use 0.15mm, but now I use 2 layers of nickel sandwiched on each side of the BMS nickel, to increase capacity. I need to do an updated video of this.

@GeorgeStyles Жыл бұрын

Interesting, but im a bit confused as to why the insulation is needed. It seems to me you are insulating 2 bits of metal from each other, then connecting them together??? a6 26:53 for example

@spinnanz Жыл бұрын

The join I do shortly after the 26:53 mark is stepped, its a few mm off the cell and it only joins the strip and the main negative contact of the BMS. The insulation stops this weld melting the plastic wrap around the battery. The insulator also holds the BMS connection up so I can put a bit of force on it when I weld it.

@GeorgeStyles Жыл бұрын

@@spinnanz cool thank you. Didn't think it might be thermal insulation.but makes sense. Cheers

@spinnanz Жыл бұрын

@@GeorgeStyles melting it really isn't an issue as it's on the negative side anyway, I just like to to look aesthetically nice as well as functional. On the positive side this insulation IS required.

@user-yh1rn3fk4d Жыл бұрын

Hi! Nice work! What is model of the spot welding device?

@spinnanz Жыл бұрын

Its a cheap $15us one from ali-express. They require modifications to be reliable though.

@Jasfras1 11 ай бұрын

@@spinnanz .... Hi, great expletory video. Do you think the welder is a good buy for the job and if I get one could you tell me what the modifications are that it needs please. I would be unable to do without your input. I see you used the positive straight through. Cheers. James

@spinnanz 11 ай бұрын

@@Jasfras1 I've found this unit good for the price. If you get one I can more than likely help you sort the mods.

@Jasfras1 11 ай бұрын

@@spinnanz ... Thanks. I'm ordering one tonight but will take some time to arrive. How do I ask for help with mods ?

@spinnanz 11 ай бұрын

@@Jasfras1 if you leave some sort of contact I'll try get hold of you

@bt5526 11 ай бұрын

I've never even opened up one of these batteries before, mate, so please bear with me. At about 26:04 into your video, you adjust the welder setting. I can't understand what you're saying at that point - or see the display on the welder - so would you kindly clarify what the exact welder setting is at that point? In fact, it would be very helpful to know which welder settings you use for double-welding the two nickel strips for the batteries on the end of the pack. In addition, I'd like to know if you somehow reattached that copper braid "ribbon" that seems to be dangling freely at about 30:17 into your video? I've both liked and subscribed to your YT channel, so please keep on making the useful and informative videos. 👍

@spinnanz 11 ай бұрын

When welding the strips to the cells I weld for 45ms. When I weld the new strip to the original strip (and there is no cell under it) I weld for about 25ms. These numbers will depend on what type of welder you are using. The flex thays sticking out, has a temp sensor on the end. This just tucks between the cell and the case when you slode it back into the case. I have a revised video to post. I now put 2 layers of new strips down, for added current capacity. 1 layer goes under the original ballance strip, and 1 on top as in this video.

@bt5526 11 ай бұрын

@@spinnanz Thank you for getting back to me about this, mate! 👍 Have you ever made a video while repairing the larger Milwaukee XC battery packs? Do the 5.0, 9.0 and 12.0 Ah Milwaukee XC battery packs require different replacement batteries than the ones you used to repair the XC 4.0 Ah battery pack shown in this video? Cheers!

@spinnanz 11 ай бұрын

@@bt5526 the method for replacing the cells in the 5.0s is different, that requires a combination of welding and soldering as their factory strips are nickel plated copper. The method of repair for the 9 and 12ah is also a combo of welding and soldering, but it's diffefent to the 5.0 as their internal cases are also a shell.

@bt5526 11 ай бұрын

@@spinnanz As I mentioned early on, I've never taken one of these battery packs apart. I do have an electrical background, however, so soldering is something I've done a lot of. Other than having to add soldering to the job, is the battery replacement work the same for a Milwaukee XC 5.0? In fact, are the batteries used in all of the Milwaukee XC battery packs the same type that you used to repair the 4.0 Ah battery depicted in your video, mate ( Samsung INR18650 )? I'm asking because the smallest battery packs we have are XC 5.0. From there, we have some XC 9.0 packs and a couple of XC 12.0 packs. Although we have more than a half-dozen "dead" Makita battery packs here, it's really the Milwaukee XCs that I'm worried about. I've noticed that one of our XC 9.0 packs is draining faster than normal; hence, why I'm trying to learn as much as I can about repairing these things.

@spinnanz 11 ай бұрын

@@bt5526 the cells I'm using are for demonstration of repair method only and I make no recomndations on repapcment cells. The repair method is quite different for the xc 5.0. The cells are all contained in a housing and there is rubber packing between the cells which needs to be cut. The strips used are squares rather than straight segments.

@guyelem Жыл бұрын

hi, just replaced the cells on an m12 6ah battery and charged it. but when I putt it in my impact the voltage meter flashes two leds at a time and doesn't work.... any clue what's wrong?

@spinnanz Жыл бұрын

Are all 5 pairs of cells at the same voltage.? Tonbe honest I've never done a 6ah as the only one I've had in was water damaged. The BMS on them is different to the 3/4/5/9ah packs.

@spinnanz Жыл бұрын

If the BMS is faulty, they are available from ali express for about $30us.

@guyelem Жыл бұрын

@@spinnanz before I replaced the cells the battery kind of worked... just with low capacity. could it actually be the BMS? maybe the cells I put are with different capacity and it doesn't fit?

@spinnanz Жыл бұрын

@@guyelemcapacity won't change if the BMS works or not. I suspect your BMS is either faulty or has locked when the cells were removed? I'm 99% sure those BMSs don't normally lock though.

@guyelem Жыл бұрын

@@spinnanz according to the manual of the batteries this intermittent flashing indicates battery temp too high, could it be that the temp sensor has damage somehow? Or may the leads of the sensor doesn’t connect right?

@garyroxene Жыл бұрын

the spot welder is a? available where? thanks!

@spinnanz Жыл бұрын

I got it from Ali express, it's a small red one, about £11.

@cesarnazario1198 Жыл бұрын

Where are you bay the replace the battery

@spinnanz Жыл бұрын

Trademe.co.nz

@jocool7370 Жыл бұрын

Great video! Can this also be made with protected batteries? Thanks

@spinnanz Жыл бұрын

You can but you'd need to check the tools current doesn't exceed the rating on of the cells protection. Some tools can draw up to 40a so the cells protection would need to be at least 20a in a cell like this, with 5s2p configuration.

@jocool7370 Жыл бұрын

Thanks for your heads up.

@GeorgeStyles Жыл бұрын

@@spinnanz Arent protected cells a little longer than regular 18650s?

@spinnanz Жыл бұрын

@@GeorgeStyles standard 18650 cells have some form of protection in the cap, some trip at low amps, some at high amps. Cells with raised caps, made to be stacked in a row like in a torch may not fit.

@davidbarker3591 Жыл бұрын

Protected batteries will not fit. Why would you use them? They cost more and your PCB is your BMS, no protection needed. The board takes care of it.

@waqasbtm1 2 күн бұрын

Nickel strip size please

@mrloftybreez1503 Жыл бұрын

Question. Can you replace the 18650's with 21700's or is the board specifically designed for 18650?

@spinnanz 11 ай бұрын

Can only repalace with 18650. The 21700 packs are a little wider.

@JWilkesBooth5 Жыл бұрын

Is there some way we can talk I have a 5.0 that went out in me they told me the cells were dead so I wanna rebuild it

@spinnanz Жыл бұрын

if you leave some sort of contact I can get hold of you

@wogboy4708 Жыл бұрын

Ahhh you can't buy batteries on eBay anymore unless the come with flash light, what website did you buy those Panasonic 18650 bd mate? Cheers

@spinnanz Жыл бұрын

I have a deal with an ebike/scooter importer, I repair their new but faulty packs in exchange for the same, ie I fix a faulty 40 cell pack, I get another faulty 40 cell pack to keep. I harvest the cells from the ones I can keep. Usually its a faulty BMS, so all the cells are fine.

@wogboy4708 Жыл бұрын

@@spinnanz well aren't you lucky lol just looking on websites and those ncr18650BD are about $30 for one now, $300 to replace 10 in milwaukee battery 🤦

@spinnanz Жыл бұрын

@@wogboy4708 new they are $12 here ($7.30 USD)

@wogboy4708 Жыл бұрын

@@spinnanz around $27-35 here in QLD Australia, for those exact ncr18650BD

@davidbarker3591 Жыл бұрын

Samsung 25R's can be bought for $4-5 US dollars. Cant u order from out of country and just have them shipped in?

@cariboucampmike7351 Жыл бұрын

is it o.k to replace samsung 20r with 25 r in a m18 xc4.0 battery

@spinnanz Жыл бұрын

That should be fine although the 20r do have a slightly higher discharge rating of 22a. The 25r have a discharge rating of 20a.

@davidbarker3591 Жыл бұрын

You'll also get a 5ah pack instead of 4ah...😀

@davidbarker3591 Жыл бұрын

You can the Molicel P28A...2800mAh with a 25A CDR

@FAMILIAxMICHOACANA Жыл бұрын

How much would you charge to fix one of my milwaukee 9 amp battery ? And one of my 12 amp battery, ?

@spinnanz Жыл бұрын

Over here a 5ah pack is about $250 to buy. I charge $85 to repack a 3/4/5ah pack (repcacked to 5 or 6ah depending on what cells I use). I'm not sure how much 9ah packs were as they don't sell them anymore but I charge $125 to repack them

@jeremymadderom1936 Жыл бұрын

How do i send batteries to you to be repacked? What's your business name and or number?

@spinnanz Жыл бұрын

@@jeremymadderom1936 what's your location?

@jeremymadderom1936 Жыл бұрын

@@spinnanz masterton nz. I was assuming your nz?

@spinnanz Жыл бұрын

@@jeremymadderom1936 correct. 0221004320.

@J.Wick. 2 ай бұрын

Throw some 25s in there and get a big upgrade both in A out and capacity. Imagine they would play ok with the onboard BMS. Cheers.

@spinnanz Ай бұрын

These were re-wrapped 30q cells, so upgraded to 6ah but a slight loss of max current. The BMS works with all.

@marknguyen6512 11 ай бұрын

What battery cells needed to replace 2Ah pack?

@spinnanz 11 ай бұрын

I'm not sure on the 2ah but the 1.5ah use Samsung 15m cells, which have a discharge rating on 23a. I'd assume you will need 2000mah cells with a rated discharge of at least 23a.

@marknguyen6512 11 ай бұрын

Thanks for your quick response

@marknguyen6512 11 ай бұрын

Samsung 18650 25A good?

@marknguyen6512 11 ай бұрын

I meant 25R 2500mAh

@spinnanz 11 ай бұрын

@@marknguyen6512 25r are rated a little lower, 20a.

@brianheiden6623 Жыл бұрын

Assuming these are 1.8v cells as there are 10. ?

@spinnanz Жыл бұрын

Nominal voltage is 3.6v per cell. Each cell is paired with another in parallel.. The pairs are then in a row of 5 cells. 3.6v x 5 = 18v.

@JWilkesBooth5 Жыл бұрын

Hey can you rebuild one for me

@saulluas100 Жыл бұрын

where do you get your 18650 cells and strips from

@spinnanz Жыл бұрын

The cells are from online and are 2nd hand with a capacity not under 3100mah. The strips are from ali express, although it took me a while to find a supplier that sold genuine pure nickel strips rather than nickel plated.

@JunkyardPerformance Жыл бұрын

Do you have the website or a Amazon link for the batteries all I find is aa batteries and I feel like they are not right thanks

@spinnanz Жыл бұрын

@@JunkyardPerformance I'm in nz so my supplier is no good for you. Your best bet is join the "18650 battery packs for beginners" on Facebook and ask on there where the best supplier for cells in the states is. There is also a lot of good info on how to build packs in general.

@davidbarker3591 Жыл бұрын

The 18650 Battery Store, Liion Wholesalers, etc

@Pedro-fe4gx Жыл бұрын

Hello my friend, greetings from Puerto Rico. Thanks for the video, it's very professional. I would like to know how and where I can buy the batteries, since I searched on eBay and Amazon and did not find them. If you could send me a link where to buy them I would appreciate it. Thank you very much. Pedro

@spinnanz Жыл бұрын

I get mine from a local supplier, but they don't ship overseas. You could try batteryhookup.com who I think ship to PR

@Pedro-fe4gx Жыл бұрын

Thanks

@Pedro-fe4gx Жыл бұрын

Greetings friend, is this model that I got Samsung INR18650-33G 3150mah 18650 batteries compatible with the batteries that the Milwaukee brings? thanks for your help

@spinnanz Жыл бұрын

@@Pedro-fe4gx it will work however max discharge is a bit low. They are rated at 9.75a max discharge. The factory samsing 20/25r cells have a max discharge of 20a. They would be best used in packs containing 15 cells.

@Pedro-fe4gx Жыл бұрын

@@spinnanz thanks!!

@deliksumantri5413 Жыл бұрын

What name brand original Cell milwaukee ?

@spinnanz Жыл бұрын

Samung 15r in the 3ah pack, 20r in the 4ah pack, 25r in the 5ah pack, samsing 30q in the 9ah pack.

@deliksumantri5413 Жыл бұрын

@@spinnanz thanks bruh

@nopemerp Жыл бұрын

@@spinnanz so if one were to use 8x 30q (the spec sheets show they are same dimensions) one could make a 12a pack with a 4.0/5.0 case

@spinnanz Жыл бұрын

@@nopemerp you'll fit two rows of five 30q cells in a 3/4/5ah pack. That will give you a cpacpty of 6ah (2 rows of 3ah = 6ah).

@nopemerp Жыл бұрын

@@spinnanz yep you're right hah sorry I was over thinking it

@davidbarker3591 Жыл бұрын

Everyone knows that it's backwards...the one rebuilt is the old style. The one without the bridge over the PCB is the new style..

@justinpillay8719 7 ай бұрын

I'll just buy a battery thank u

@fasteddie7273 22 күн бұрын

Greetings. can I send you my battery for repair?

@spinnanz 22 күн бұрын

Only if you're in New Zealand!

@reapersegura5492 Жыл бұрын

Buy your nickel plating strips

@TranTek Жыл бұрын

One you are swapping cells are old old style the other one is all they use now for North America.

@spinnanz Жыл бұрын

Here we have mix of this and the other type. Most I do are for the Australian and New Zealand market.. I like doing this type better as its only spot welded. The other type require spot welding and bit of soldering too.

@TranTek Жыл бұрын

@@spinnanz i use the spot welder with bank a bunch of supercaps

@spinnanz Жыл бұрын

@@TranTek I want to get a kweld

@TranTek Жыл бұрын

@@spinnanz kwelder is the best it can do 0.3mm copper strip make sure you get a good psu as well as bank of supercap Meanwell PSU works very well if you solder a lot, get a pair of psu

@adassociates8235 Жыл бұрын

Do you have business of replace cells?

@spinnanz Жыл бұрын

No, I just repair batteries as a side job in my spare time.

@thrillhunter9897 4 ай бұрын

not worth repairing unless you have extra batteries laying around. the cost of putting all new cells is not worth it.

@spinnanz 4 ай бұрын

Genuine 5ah costs $279 here. Cost to repack with new Samsung 25R costs $99.

@FreeYourBrains Жыл бұрын

the replacement small batteries will cost you more than the new original one from the store, but, the price it is a big scam, it cost dewalt or Milwaukee 5-6 dollars per battery and they sell them for $58. So when your battery dies down, buy a new one swap the internals and return to home depot, free batteries for life. beat them at their own game

@spinnanz Жыл бұрын

The BMS has a date code on it. Not to say it won't work but if they catch on you're looking at a charge of theft or obtaining by deception just to save $58.

@FreeYourBrains Жыл бұрын

@@spinnanz where do you find these samsung batteries at a good price?

@FreeYourBrains Жыл бұрын

@@spinnanz and home depot only does a small visual inspection, you can swap the whole cartridge out, they will never ever know.

@SalvadorSTMZ Жыл бұрын

@@spinnanz wow how did you learn that? about the BMS having a date code. Thats good to know.

@FreeYourBrains Жыл бұрын

Everywhere I look these Samsung batteries are expensive, so it’s cheaper to buy the whole thing, unless you can tell us where to buy them cheaper

@spinnanz Жыл бұрын

A genuine 5ah milwaukee pack is $260 here in NZ. 10x Samsung 25r cells will cost me $109. (this is nz $) www.18650batterystore.com/products/Samsung-25r-18650 can do 25r cells for $4.99us, making it $49us for 10 cells to give 5ah capacity.

@FreeYourBrains Жыл бұрын

@@spinnanz isn’t better to use the 3500mAh which I’ve seen on the internet? In theory should last longer and have longer times between charges?

@spinnanz Жыл бұрын

@@FreeYourBrains the higher capacity cells tend to have a lower max amp rating. Example: a 10 cell pack made with 25r cells has a max output of 40a. If the same pack was made with 30q cells it would have a larger capacity of 6ah, but would only have a max output of 30a. 30q cells would be best used in a 15 cell pack (9ah), which would give it a max output of 45a. The 3500mah cells you speak of are likely the 35e which have a max rated output of 8a. In a 10 cell pack they would be 7ah with a max of 16a. In a 15 cell pack they would be 10.5ah with a max of 24a

@FreeYourBrains Жыл бұрын

@@spinnanz thanks

@FreeYourBrains Жыл бұрын

@@spinnanz what happens if you solder the batteries instead of spot welding? I have Stay Brite silver solder and stay clean liquid flux which is capable to solder stainless to stainless, copper to stainless etc. Basically it’s excellent for disimilar metals. Is there a damage to the batteries?

@jaromsmith4429 Жыл бұрын

It hurts to see you using a screwdriver and not an impact driver

@spinnanz Жыл бұрын

An impact driver for what?

@zukezukowski5944 Жыл бұрын

@@spinnanz for what exactly? For any repairs I have on vacuum, hair dryers, etc I always use hand tools because you have more feel since they are small screws and don't want to over do it

@spinnanz Жыл бұрын

@@zukezukowski5944 exactly, so why would I use an impact driver? An impact driver is for removing stuck nuts and bolts.

@chucktrades3211 Жыл бұрын

Maybe he needed to repair the battery to get his impact working again. 😆

@jacquestuber628 8 ай бұрын

Fun fact Walmart sells those 18 650 batteries for their solar lights and at the end of the season they're often on clearance and I got a pack of four for $5.

@A6D6E6 Жыл бұрын

So , there is no anti tamper circuitry in a Milwaukee BMS ? No locking of the BMS when the cells are removed ? Great welds BTW.

@spinnanz Жыл бұрын

I've done mostly New Zealand/Australian packs as well as a few US packs, none have had any problem working after being repacked. I've even had one that has the cells removed for a few months. In saying that, a replacement BMS is available for around $5 online.