[Jay Kickliter] built his own coin cell battery ... which use AA or AAA have NiMH rechargeables in them and have used the same pair for year and years. So we’re happy to see this charger project ...

Ni-MH pre-charged rechargeable battery 4 position charger with advanced, individual battery charging, AA and AAA cells Battery detection technology - automatically shuts off when charging is complete ...

Battery chargers are used to recharge batteries ... numeric or alphanumeric representation. Cell sizes for rechargeable batteries vary widely. Standard battery types include AAAA, AAA, and N; AA, 1/3 ...