An mostly complete accounting of cordless power tools & their batteries at the space.
All of this stuff is with most of the chargers mounted to a piece of wood to keep them all together.
Black & Decker 12V NiCd
Black & Decker 14.4V NiCd (slide-on type)
Black & Decker 18V NiCd
Black & Decker 20V Li-Ion
Craftsman 14.4V NiCd
Craftsman 18V NiCd
Craftsman 19.2 V Li-Ion (there is /some/ compatibility between this and the 18V system, the batteries for these will fit the 18V tools…)
Ryobi 18V (NiCd & Lithium…)
Ryobi 12V (Li-Ion)
Power Tool Graveyard (we still have these, but they're pretty useless- batteries hold no appreciable charge, etc.)
Skil 18V NiCd