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"DEAD" "Bos Blue" 18 volt battery reviver/recharger device. Revive "Bad" batter - $25 (Kingston)
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Don't throw away that "Bad" cordless drill battery pack. Buy my device and connect one side to the "Bad" battery and then connect a 100% fully charged battery pack to the other sideof the device. The voltage on the "Bad" battery is below the required threshold needed for the battery charger to recognize that it is an actual verified battery pack. By connecting the good 100% fully charged battery pack to the other side of the device and leave them connected for 10 to 20 mins, this will transfer enough voltage to the "Bad" battery pack. Then it can be recharged again with the original battery charger. Then you will have a new battery pack again.
Unlock the capabilities of your cordless drill Li-ion battery packs with Mike's Electronics!