also: にっかどばってり
noun
Technical term for a rechargeable battery using nickel and cadmium; commonly abbreviated as NiCd or NiCad in English.
この古い機器にはニッカドバッテリーが使われている。
This old device uses a nickel-cadmium battery.
Lithium-ion battery, now the dominant rechargeable battery type, offering higher energy density than NiCd.
Loanword from English 'nickel-cadmium battery', abbreviated and adapted into katakana as ニッカドバッテリー.