Revive DEAD Battery Packs - Rebuild Repair - Dewalt Milwaukee Makita Ryobi Bauer Ridgid 18v 20v 12v 

🚨WHAT I USE IN THE VIDEO I use the Kester 951 no clean flux. It lasts forever amzn.to/3bfvukk Security Torx bits : amzn.to/3PPgs42 18650 21700 lithium Universal battery cell CHARGER: amzn.to/44Pmc57 RYOBI Dual Voltage Portable soldering station: amzn.to/3Jj0lZK Inexpensive soldering iron/ kits: amzn.to/3zEmNcJ Replacement battery cases/boards Dewalt Battery case & board: amzn.to/3OL2v5B Makita Battery case & board: amzn.to/3cRIahD Milwaukee Battery case & board: amzn.to/3SamPAq

Did you notice that the failure battery is always the 1st one in the series. This is due to overcharging, the chemicals in the battery overheat and degrade. Its common in all batteries including phones. Very instructive video. Kudos.

Great info! I have several packs that the BMS failed. The cells are still good but the little circuit board inside is bad. I take the cells out of those and use them as replacements as needed.

I got 2 Chinese makita batteries for $32 from ebay they lasted a few months both shorted out with high amp draw tools. They sent me 2 new ones and the same thing happened .I bought some decent new cells from the 18650 battery store for $2 each and rebuilt them and they are amazing way better then any factory makita pack

Amazingly informative!! You are one hands-on dude with zero BS 👍🏻

Even if I don't have a need for a pack, I harvest the cells and convert everything I have to use the 18650's I've done maglites air and water pumps, a lighted collar for the dog, anything I can fit them into.. just pay attention to the voltage...

I have had the best experience so far with the repair of Milwaukee M18 batteries. Out of more than 20 repaired batteries, only one had a faulty pcb board.

I have to say I rarely find a video on here that genuinely makes me happy I learned something new. I was well aware of the batteries inside these packs, but never even thought to try to open one. I have the individual 18650 charger for my vaping batteries which indecently are the same cells just usually much higher drain. Anyways I have so many old packs that don’t charge well that I can now mess with and try to make good again! Thanks for the amazing info. Please if you have a chance do some videos on building/repairing or improving EGO batteries for blowers trimmers and mowers if you could. Thanks again definitely earned a sub and a like!!

Love your videos man. Appreciate your no nonsense approach. PS: Your dog is a welcome addition to your videos. Makes them that much more entertaining. 👍🏻

Very good video. I have been fixing the small tool batteries in my Ryobi One+ (18v) for years. Most of the time, I take out the batteries and bypass the BMS and charge/jump it with a good back. Then if it charged up, I put it on the charger and 90% of the time I am good to go. Very occasionally I find a bad cell and grab one out of my stash and I am good to go. Good advice and description on this video. All the best!

Good information 👍. Ginger sure has good discipline, and she is so cute. Nice to see her paw has healed.

Great info just purchased new Dewalt batteries, so wish I seen this vid before throwing away old ones. Putting this in my save folder for reference

First off: Give Ginger another biscuit. I had similarly the same issue with solar-powered lights. The solar panel was tested and it was putting out the needed voltage to keep the batteries charged, so I figured it had to be the batteries not accepting the charge. I went and ordered a 10-pack of matching batteries because I had 3 of these same lights. I tested the batteries on each one just like you did. I disassembled them because the new batteries cost me around $15.00 for ten of them and each light cost over $40.00 new a few years ago, so the expense was worth it. Once I disconnected the old batteries that showed no power and soldered in new ones I saved 3 lights from the dump. By the way, those 3 solar lights went almost 3 years without a problem, so hopefully, the new batteries will last just as long. I think it took about an hour to repair each one (disassembly was a headache), but well worth it as they live again and it didn't cost me another $150.00+ (Current Prices) to replace the lights. I still have 6 batteries left over, but it was cheaper to buy them in quantities of ten than one at a time. P.S. I don't throw anything away intact. If I can recover a screw, bolt, washer, etc. from it, I do. This has saved me many trips to the hardware store when building something totally different.

ive found you to be the most informative source when it comes to anything relating to cordless tools and batteries. not all li-ion batteries are created equal. some of the older hilti and dewalt use lithium iron batteries which have a lower voltage rating but higher recycle rate and cant be charged off li-ion chargers.

Lithium cells are quite impressive for there size, just look at modern jump start . So much current , amazing. Your dog is just loverly, she is so forgiving.

Thx for a great video! Replaced cells this way myself on a Makita 18v pack.

Thank you very much for you time teaching how to repair the batterys 👍🏼👍🏼🤝 03-27-2023 7:18pm. ⌚

Figures. Manufacturers want us to buy new but often isn't necessary. Great job showing us how to save money and be easy on the environment.

Good Info, always like to know how to repair things. Even more true if it is a situation that you can't get "new". I've had 3 Milwauke M18 batteries that are about 15 years old. They still charge, and although not as good as they used to be, they do still last a good time in a drill, impact driver, sawsall, or flashlight. Now my M18 leaf blower, or other high amp tools, will run them down pretty quick. But they are so old they don't even specifiy the Amp Hour Rating 😁as that wasn't really a thing back then. They are just labeled as "HD", but guessing they are approx 4 ah. But I have a lot of new batteries too, but still use these old one's on a daily basis.

Awesome video, I wish I knew this years ago. I’ve spent a small fortune buying battery.

I like the setup of your shop. Makes a great background that any gesrhead would admire. Looks like a ideal spot to enjoy a cold beer and good friends. Excellent video dude.

Been looking for something like this. So many packs laying around. Heelers FTW!

Great way to save money and we all need that these days 👍 Stay cool 😎

Thank you very much, good quality info and very thorough. I've had 2 part Blue Healers they are wiser than some humans I have come across.

Wow thanks for sharing your ideas are on the money like the way ya showed us ya made it look easy without breaking the bank on tools ya got my vote signed up for more information 👍

When mine go bad I go to Harbor Freight buy 2 or 4 Bouer Batterys and I just swa the cells into my Dewalt Packs. I use to have a Video of it I should have kept it up but decided to take it down. Funny I have that exact same 18650 battery Charger too. I have done everything you do lol! Great Video!

Subscribed for all the great practical info bro., all other videos were terrible but yours put it all together for me. Thanks and God bless!

Thanks brother that is definitely a need to know.

Good dog and good info also. We had a red heeler they are so good.

This was a thorough video. Fortunately, I have got rigid, and I do not have to worry about this.

Another great video!! You covered all the important items!! You are always thorough! Thank You!!

That is one cool dog just like his master. I had a 2P5S weedeater that had 3 bad cells. Now it's a 5S with half the life. Surgery was a little more complicated but she's still going strong where my corded one can't.

Great vid, I like the soldering tips I struggled with that!

Thanks for the video. I just jumpstarted a Dewalt 18V battery just like you described.

Cycling the charger on and off repeatedly sometimes fixes blinking codes too. Plug into a power strip with a switch to make it easier since most chargers don't have on/off switches. I've done it before and have used the batteries for years afterwards.

I have pulled apart a few of my bad battery packs, but have not gotten around to replacing the cells. The M12 is a bit tricky to pull apart. What I found worked well for getting the cells out of the tight battery pack is to put some hot melt glue on the end of the battery and attach some kind of puller. I use the pullers that are used in paintless dent repair.

man this is good. You gone start bein one a my favorite channels!

Great begginer video. I'd also recommend lead solder. It melts at a lower temperature and makes it easier... also a spot welder for more advanced users. Cheers

Love guys like this, so informative and easily looked over. My black and decker battery no longer charges and flashes red. Crazy i get this link on you tube a day after ordering a new one -_-.

Interesting stuff , keep it going I have battery failure so I’m soaking this up, just no solder kit, haven’t told the wife either😮😊

I have used the ryobi soldering iron to Fix Sterling Silver Jewelry was impressed most of the time you have to braze silver

Bought a 30v DC power supply and it has changed my battery world. I can use it to test batteries, charge batteries and run motors. Fixed my first 12v dewalt battery pack today for free (had a 1850 battery) and had my tool up and running in the same hour! Electric cars are coming we have to learn how to do this... :D

Thank you! I got a nice Craftsman full drill kit at auction dirt cheap and none of the 3 battery packs hold charge. I plan on using 1 of the 3 to revive the other 2. I knew if was possible from your other videos. This shows me exactly what I need to do. And what not to do. I’m working with my 8 month old boxer-pit mix to be as well trained as your dog. She might be too dumb or too smart to be trained. I’m betting too smart, but I will keep working on her.

Excellent knowledge as always Mo! Thanks!

Good video thanks ! 👍 Got some old ryobi, and newer worx packs. I think I'll try this 😊

Got my subscription off this video. I have a dead Craftsman battery pack that I didn't want to spend $100 to replace. Definitely going to do this instead! Thank you!

Another great video thanks I always look forward to your content

Amazing dude! I enjoyed this video! Thanks🖖🏼 regards from Sweden

This is the best and most complete tutorial I have seen. Ryobi batteries seem to be really prone to killing one cell, I am going to pick up one of those Kobalt packs and I can probably repair all 20 of the Ryobi batteries that I have on the shelf.

Great idea about cardboard cell, with jumper cables.

Awesome video, I'm about to replace all of my ridgid cells with the fancy Panasonic jobs...

You can get a decent spot welder for about 24$ that uses either a high drain 12v lipo or a high amp-hr 12v car battery for power. They are made with two red pcbs for the body and have 3 buttons with a small oled display.

It's nice to get something done so cheap but I've found taking the shell apart to be the biggest task with some of them. Perhaps you can give a tutorial on taking each brand apart.

One thing to consider is that most of the cells in these packs were manufactured in the same batch, put into the battery at the same time, and likely have similar wear characteristics as ever other battery in the pack. It's only a matter of time where you see multiple failures in the near future (YMWV). This is a common issue in server RAID arrays for the same reason...all the drives are usually installed from the same shipment and are subjected to a similar workload over the same period of time. Replacing 1-2 cells may work, but if you could spare a few extra bucks, and you can get cells for a price that makes sense, just swap all the cells.

Great demonstration.

You never want to replace a single cell unless you test the internal resistance and you pair it with cells of similar internal resistance. Otherwise you are setting yourself up for disaster. Also only solder the battery if you are completely confident in you’re skills. If you insist on doing this, buy a little spot welding machine… and please be sure to match internal resistance, because tools these days draw a lot of watts and you don’t want a thermal runaway situation on your hands.

You can still those security tips in the torx screws and use regular torx too. Food for thought

Great information if you have a solid electrical background like being an electrician

Thanks brah! Like your info and your delivery.

Glad to have bumped into you. What about using one of the small, rechargeable spot welders for strap attachment. Soldering the wire to battery connection mocks me.

Thanks AMIGO!

You touched on an important subject regarding only using high drain cells. The biggest way people screw up when replacing all cells in a battery pack is by using laptop cells. Laptop cells have high amp hour ratings, but can only handle a fraction of the instantaneous current that high drain cells provide. Laptop cells will perform poorly under heavy load and will have a short life span.

Great presentation! First time I watched your channel. You may have broached using heat sinks in the past for drawing heat away from area using a small heat shrink clip when wanting to protect adjacent areas. This is what we needed to do in some soldering operations in aircraft avionics repair, the F-111 specifically, where we did a lot of circuit board small component replacement. Great pooch too…. Thanks

Working over a silicon mat can help with solder spatter or battery fires. Someone mentioned a sand bucket, not bad but make sure you’ve got a pair of tongs.

U da man with useful vids, thank you. For tacking the tin strips you can also use a 12v car battery with nails. I tape off the wired parts where I hold them or you could make resin molds and cure the wired nail in it. But as little temp into the battery as possible is the target when you do that, just like with soldering. B.t.w, I think your dog wants payback for this trick of yours 😁

I learned to solder batteries years ago. On the older BMWS the keys battery wirelessly charges and is sealed into the key. They are expensive to replace and I learned to cut them in half and install a new battery and super glue it back together. Gotta scuff and use flux and high heat, sticks to batteries every time. I was watching to see if there’s any other methods. I have always used acid based flux for batteries. I always clean them when done.

Excellent tutorial. Regarding soldering in general, a few things to ensure good joints and aide the process: 1 - make sure the soldering iron tip stays tinned or effective heat transfer will be nearly impossible. 2 - skip rosin core and go with solid solder wire and use Solderlene flux with alcohol wipe clean. Better for metal-metal soldering is solid solder and Stay-Clean acid flux followed by liberal baking soda/water flush after soldering. Use a small amount of flux and don't let it run everywhere.

Good video, very informative. Thank you

Mooore power! Argh, argh argh! 👍Thanks brother.

I have an older Makita right angle drill that I've been wanting to replace/repair the battery.. 9000 was the # iirc. Might look into this even though I've got a Milwaukee right angle now.

Wow you really remind me of a guy called "Myself"! Only difference is you dont apparently dont have any 80V kobalt tools, I definitely still use them, in fact they are among my favorites for sure! They have replaced all things I used to hassle with gas over, better performance and always ready to go, even the chainsaw, and I literally got them "Dirt Cheap", only one out of the 9 I had to actually repair, and its been great ever since. But I understand your conclusion since there is allot of those batteries that arent old enough to be bad for parts on ebay ! All mine have been been trouble free though and I work them hard. Still when they have replacement boards for those I would probably try my hand at getting a couple more going!

Notice it's usually the cell in the front of batt pack?everyone I ever opened it was usually the front cell bad. Possible that there is a engineering problem with the batt management system on the negative side or a missing diode for back emf

I guess most people would throw them away, thanks for showing how to replace them

awesome thank you for doing this

Very well explained and demonstrated. Many thaks for a good video. Cool dog too ☺

Good stuff, Moe. Thanks for your expertise.

*Keep on Rockin Brother !*

Good applable information

Excellent video covering many adaptors and combinations, but I could not see one that would suit my requirements. I am looking for an adaptor using Makita BL1850 or DM18M type battery to power older Dewalt tools that use the Dewalt 18v XRP batteries. Even a combination of adaptors would suffice. Thanks for reading.

Thank you for sharing

I take a fine point punch and knock the center piece out of the tamper proof torx screws. It doesn't take alot of force to get them to break off.

Excellent to the point video.

this is so dangerous and i highly recommend anyone thinking about doing this from this video that you do research on lithium batteries, how they work and why you should never just replace one battery like this. thermal runaway on these high drain batteries are scary as hell and if you ever vented a battery before, you wont want to make that mistake twice

Hey that's a Queensland heeler, cool dogs ....

After watching the first 3/4 or so a couple times and finally getting to the part where you mentioned Makita I totally deflated all tumescence! I have around a dozen makita i batteries which are still fully functional. However the oldest among them are approaching the age of where this video was making me feel that rush of blood and perhaps engorgement when we think of our tools. The terrible news about Makita and the “BUYNEW BUY OFTEN BUY NOW! mantra of the shareholders really was a bummer. The small saving grace was the availability of the new pcb briefly returned some of that oxygen rich blood offering a glimmer of hope 😂

Hi. Who makes the best replacement batteries for Craftsman tools? Does Waitley sell them? When you have to buy new replacement cells, where do you get them? Link?

Thank you

Good video! They're all the same because they're all manufactured in the same plant and then Ryobi or Milwaukee just put their plastic covers on them

Nice , thanks for the information

This is awesome knowledge 😅😅😅😅😅

Great video again thanks for sharing 👍👍👍👍

Thanks!

Great information!!

Nice one ! 👍🏼

Thanks

Awesome sir!

Nice job and thanks for the tip

Good repair

I generally use pennies in the slots when I need to jump power to or from a 20v pack.... in emergency situations you can absolutely jump a full size truck by charging the car battery from a 20v pack with jumper cables... you only get a couple shots at it but thats enough if you dont have bigger issues.. you just have to disconnect the 20v pack before turning the motor over because it will pop the safety "fuses" that are in the 20v pack

fire is a big risk with batteries using the wrong size cells can be risky in that way. it is possible that laptop cells are being used to repair ebike batteries as well as the wrong kind of charger. i have heard that while you can solder on 18650 cells it is not recommended because you can damage the cell by heating it up. the dual row would be 2p configured as there are 2 rows in parallel and 5 in series to make 5s2p. the circuit board is the bms