DIY: Repair Faulty NiMH Battery Instead Of Buying New One

In this video I’ll show you how to repair faulty NiMH battery instead of buying new one.

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[AtlantaTerry]

Thank you for this. From my late father who was a carpenter, I inherited a DeWalt cordless drill that has a defective battery pack. Now I know how to repair it.

[ronbuttineau]

You have a natural way, of explaining. one of the best explanatory video's I have seen. your like Donny the lawnmower doctor. well done, I tip my hat to you.

[paullynch]

If have quite a few various brand cordless power tools from my late father which I have been cleaning up and checking them out during this lockdown period. I have loads of different Nicd and Nimh batteries all mostly working very/extremely well but a couple that need some attention. This video is very helpful to me. Thank you!

[Robert-xpii]

Just like a pro. I'd never know you did work inside that battery pack. Nice!

[mohdazamabdullah]

I MANAGE TO RECYCLE 2DOZEN SET OF BATTERY AND EARN SOME POKET MONEY TOO.THANK YOU BRO.ITS VERY HELPFUL..I HAVE DONE THE RIGHT WAY.AND THEY KEEP SENDING MORE BATTERY TO GIVE ANEW LIFE.

[dunlop]

HI that was very good .It has repaired 3 of my battery pack, s. for £10. Thanks David.

[alanaspopo]

Thanks for the information as I have 3 packs that need repairs. I can probably sacrifice one battery pack to get the other two back working again and then see about either making a pack with new batteries. Great ideas.

[dale]

great job. never thought about changing the batteries. thanks

[mabsalom]

Great information, thanks. I have older Bosch 14, 4v NiMh drill and driver that are in good shape but batteries that don't put out. Replacement batteries are more than replacement drills!

[telosfd]

You check the voltage of the damaged battery while it is connected to the other, miracle.

[CharlieGosh]

I've tried this quite a few times. It's OK if you're super desperate and live out in the middle of nowhere. I always end up buying new replacement packs on eBay for around $15. Buying a sub-C size battery with welded solder tabs hasn't been good for me because the pack cells always seem to be just slightly smaller and there's no spare room, so you need another failed pack to pull from. I've tried this method with 18650 laptop battery packs, too, and it's just not worth the effort (lots of delicate charging circuitry in laptop packs). I've had some luck scavenging from the battery recycle bin at the Lowe's store and also pulling high-quality solder-tab 18650's from old laptop packs (peel off the tabs, file the weld points). You might also try just going around the faulty cell with wire -- you'll only lose a fraction of the total capacity, and a good charger should be designed to accommodate the change. Just check pack and charger for overheating while charging.

[jimprior]

He made it look very easy, don't count on it

[MatthewBester]

Nice. I'll check mine although it is 13 years old.

[freetolook]

Good tip. Not many things are repairable anymore.

[davidferguson]

I would rather use a spot welder than solder because heat from the soldering iron may damage the battery

[Simon]

amazing video I love it so much, just a very little correction it's 15 cells x 1.4=21 not 50 lol

[VitorMadeira]

Great help. Thank you and greetings from Portugal.

[mohdazamabdullah]

THANK YOU VERY MUCH.M9ST HELPFUL IT SAVES ME ALOT AT THIS TIME OF THE COLD ECONOMIC SITUATION

[condor]

Excellent video. Great job. Will do this as well once I experience this symptom. Thanks!

[ambient]

Loving your videos - they inspired me many times.