Hi, I am looking for a 14.4 volt GMC battery charger circa late 90's , ie the first model. Have two drills that still work fine and five batteries that still hold charge but the charger died. Very handy in the workshop as set up with drill , countersink & driver when doing cabinets. I know these things are cheap but I HATE waste !! The Charger model number is PF 6001. Any suggestions of alternative makers charger that might work,