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RE: Electronical mysteries










I'm hoping for a similar outcome on this project.

I bought this rotary hammer drill cheaply on Gumtree with no charger and a dead battery. I use Panasonic tools so I already had the charger, and thought I could rebuild the battery.

Surprisingly, the rustiest of the batteries weren't the duds. I decided to replace them all with identical 26650 cells and bought a little Chinese spot welder to attach the nickel tape.

It all went well, but the charger is still showing a faulty battery LED! I charged each cell individually before packing, and my only hope is that as they discharge and perhaps balance, that the charger will be able to recharge the pack....fingers crossed.



Edits: 05/04/24

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