電池
Meaning in Englishbattery
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Word context
What it means
A device that stores chemical energy and releases it as electrical energy to power electronic devices.
Main meanings
- Portable energy storage device powering gadgets and tools.
- Can refer to a single electrochemical cell inside a pack, especially when distinguishing from a full battery.
- Commonly specified as 乾電池 (dry cell) or 蓄電池 (rechargeable battery) to differentiate types.
How to use it
In everyday Japanese, 電池 is a general noun for batteries. In formal technical writing, 蓄電池 is used for rechargeable types; in casual speech, 電池 or バッテリー is common. It appears in contexts like household electronics, portable devices, and energy storage discussions; used with counters such as 本 to refer to individual cells, and with verbs like 交換する, 入れる, 使用する.
Variants and close terms
- 乾電池 (かんでんち, kandenchi) — dry cell
- 蓄電池 (ちくでんち, chikudenchi) — rechargeable battery
- バッテリー (ばってりー, batterī) — battery, loanword
Composition
- 電: electricity, energy source
- 池: pond, reservoir; metaphorically a container or storage unit
Etymology
電 electricity; 池 pond; the compound uses these meanings to convey a device that stores electrical energy, with readings den = denchi; a Sino-Japanese formation indicating energy storage in a container.
Word class
noun (名詞)