Hi, I think I found an answer. I had a A9275 B&D battery that would not charge and the green light would come on straight away. I found there are three poles in the battery and only two is used to charge and one is to give the charger feedback about the state of the battery to prevent overcharging. Insulate this third pole with paper/plastic etc. for 30 minutes and the cells would regain to a certain voltage. Take care not to overcharge. Once charged use the battery and next time you would be able to charge it normally (without insulating the pole).
 papadelta
 October 2008
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A bit late I know, but...
This happened to me the other day, and after a lot of head scratching I found a soulution.
It seems that the B&D charger does not like dead flat battery packs ( less than 1.5v ).
I put my battery pack onto a workbench DC power supply 1A at 12 volts or so for about an hour.
Ater I got some 12v or so into the pack the B&D charger was quite happily to charge it up to the full 18v.
In future I'll just charge the batery pack a bit more often.
Roy
July 2008
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HHM REPAIR AGENT 01543 275048 COULD OFFER HELP OR ADVICE
HEATH HAYES MARINES
September 2007
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hey there! i have the same model driver, with the same problem, try plugging the charger in and connect the battery, the green light will come on, leave it like that for half hour or so then take battery out and reconnect, if the charge light does not come on then the battery has expired!
bobby
March 2007
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