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Restoring Cordless Drill NiCd batteries


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Got a Bosch 12V Cordless drill the other day for nothing. Took it home and the battery would not charge at all. 0 Volts showing on the Multimeter . I wondered if there was some way it could be restored to take charge again and did some googling.

 

I found the video below which basically involved attaching a wire from the (-) terminal of another 24V battery I had to the (-) of the dead 12V battery. You attach another wire to the (+) of the 24V battery and then make quick contacts with the (+) of the 12V battery for about 6 seconds. After doing this you should notice the battery has a voltage again. IF its worked which it did for me first go, you should be able to charge the battery normally.

 

Worked a treat for me. Although be warned, there is risk I'd imagine. Saved me about $40 for a new battery

 

[video=youtube;yvpGp2CM-qk]

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