So my father had a Craftsman 18v cordless tool set about 10yrs old (Drill/light/mini Circular saw) and the battery charger finally bit the dust. I looked on line and there are no exact replacements for the one that I had but a charger for an 18 volt battery was listed so for $20 I figured what the hell. Open the box and look at the charger, no joy the contacts are in the wrong spot/ configuration to charge my old batteries. Well hell that's $20 down the drain then it hit me, why not just take and hook the new charger to the old base/ battery socket. Hell that's just a matter of soldering a few wires.
Will this work? Did I just build a bomb/ fire hazard?