I have some cordless power tools which all require a certain 12V nickel-cadmium battery pack. My battery packs are dead, but the good news is they're held together with screws, so I took them apart to have a look. The bad news is the cells inside are all shot; they have the little crystals on the outside telling me they're done. So, the dead cells are going to the official hazardous waste drop-off site.
- What should I replace them with? I've wired up battery packs for RC cars and stuff before, and I'm confident I can put it back together properly. The problem is I'm having a hard time finding the nicad cells now. did they stop making them? I see a few for sale and they're like $3-5 per cell now (I need like 50 of them).
- Is it possible to salvage the good cells from several different dead ni-cad packs to create one working battery?