Comment by accounting2026

At our high school we each had to buy a TI-83 calculator kit, and it came with one of those Rayovac alkaline chargers.

I also had a Seitek Eco charger that could charge "normal" alkalines. But you had to be careful not to discharge them too deep. It seemed kind of pointless over rechargebles though the capacity of NiCD/NiMH was way lower back then (I remember when NiMH AA batteries at 700 mAh were considered really high!). And perhaps it some devices it was great they held 1.5 V.