noun
rechargeable battery
Common term for a battery that can be recharged, such as NiMH or Li-ion cells used in everyday devices.
このリモコンは充電池を使っています。
This remote control uses rechargeable batteries.
バッテリー often refers to larger rechargeable batteries (e.g., car batteries) or battery packs, while 充電池 is more common for small consumer cells.
Compound of 充 (じゅう, 'charge') + 電池 (でんち, 'battery'). The reading is standard on'yomi.