Dewalt Battery won't charge? Try This!!!

This procedure works on all Xr batteries 18v and 20v dcb184 dcb183 dcb182 dcb180 dcb200 suitable for XR Dewalt lithium powered tools.If you tried the jump-start method of getting your Dewalt xr 18v faulty battery to charge and it didn't work this is the next step. In this video I will show you how to replace bad cells in your Dewalt lithium ion battery. The video explains how to identify bad cells and shows the removal of them. this video shows how to spot weld the new cells in to replace the bad ones. can you repair a Dewalt battery? can you replace faulty cells cheaply and easily? if I can you can. cells are available from dedicated online suppliers I got mine from Ebay. The cells used are Samsung 18650 25r lithium cells not Samsung 21700 as I had thought. I had to check which cells were used in this battery it is printed on the side of each cell. #dewalt #repair

[doctorlefthandthread]

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[realprojecttools]

i say it before and i say it again. you're a treasure mate! hopefully you can repair more defective flexvolt battery too and post it. thank you

[davidbarker]

One thing that hasn't been brought up is that the strips that you get with the spot welder is 99% chance of being nickel plated steel. Couple of reasons why they include plated steel vs. pure nickel is; Its cheaper for them, it's easy to spot weld than pure nickel. Big drawbacks are; nickel plated steel will corrode and rust over time and it carries less amps, which is important in a high drain device like power tools. For example .15 × 8mm copper 18A of CDR, pure nickel 5A, nickel plated steel 3A. 2 ways to test what you have. I'll take Dremel with cutoff wheel and cut a little of the strip. If you see sparks, plated steel, no sparks, pure nickel as nickel doesn't kick sparks. If u want to be double check, make a salt water solution and put a small piece of strip in. If no corrosion the next AM, pure nickel. Shows heavy corrosion, plated steel...

[paulvanberkel]

Great video! Are you working on the ground for safety reasons?

[IMPACT-NATION]

Great work my friend. I love this kind of content

[henryn]

Thanks for the tutorial. I'm looking to do this myself. How did the battery hold up after the repair? Anything you would do differently?

[JimJimpmjj]

I have this exact issue with one of mine. Going to order the spot welder and batteries to fix it.

What thickness nickel strips did you use please? 0.2mm?

Thanks 🙏👍

[arlemooldijk]

Few warnings: I would isolate the other cell-ends with tape before removing and adding the nickelplates, it's easy to short the cells. Furthermore, I'd check the cell battery voltages after a few charge cycles to see if they keep their balance. If charging takes much longer you know there's an inbalance in the pack and more cells needs to be replaced (I'd replace them all if the pack is old). Performance will be better if the cells are from the same production batch.

PS. I'd work on a desk instead of on the ground, makes it easier to do the job. 😏

[Michel-Artois]

That runs...but control the right balance after a few charges and discharges, because you add new cells to old used cells, with certainly different internal resistance.

[lannabulls]

Thanks so much for your useful video!
How many mamp for a single battery?
Thanks again!

[davidwhitehouse]

I slightly nicked the green wrap on one of the battery’s so covered it with black electrical tape is that ok doing that?

[tomcanfield]

Can you detail the tools used, most specifically the spot welder please

[djkieranpatience]

What cells do I need for a 18v 4AH DeWalt. Many thanks

[robbiebooth]

Does anyone know the name of the lil spot welder used in the video?

[wulfclaw]

Got two 5ah batteries from ebay. Seller won't refund or exchange the one that won't charge.
I don't think I am up to foolin with tearing it down and have already tried the jumping it from tge other battery trick- no go.
Do you know if Dewalt will replace it?. It was new in the packaging when I got it.

[PTLifeYO]

Perhaps an OPUS battery charger/discharger would be good to add to your collection (plus the modded cooler fan).
You can great test each cell and roughly gets its mAH reading.
You can also get dedicated IR testers.
Also I’m surprised that cheap welder did the job. You can make one or go for a decent branded one for £100.
The problem these days is sourcing cells. It was easy before EBay and others cracked down on postage due to fire hazard.
It’s getting cheaper just to source a whole new unit battery pack now sadly.
Good video for an amateur and from now I never bin bad units but keeps/test/label each cell.

[PBSAVAGE]

What's that tool u ust to reconnect them

[Marcel_]

how do you check for broken boards? whats the indicator of faulty boards?

[ElektroTechNL]

Always charge or discharge the new or any battery to the same voltage when you rebuild or build your pack.

[onomenikoro]

Where did u buy replacement cells from? There are a lot of fakes out there for me