1.
dead battery; battery drained; out of power
The state of a battery being completely depleted, causing a device to stop functioning.
スマホが電池切れになった。
My smartphone's battery died.
電池切れで連絡できなかった。
I couldn't contact you because my battery was dead.
電池切れを防ぐためにモバイルバッテリーを持ち歩いている。
I carry a portable charger to prevent my battery from dying.
電池切れ describes the state of a battery being completely drained. Extremely common in daily life with smartphones and other devices.
FORMATION:
電池 (battery) + 切れ (running out, from 切れる).
COMMON PATTERNS:
- 電池切れになる: the battery dies
- 電池切れで連絡できない: can't contact because battery is dead
- 電池切れを防ぐ: to prevent battery drain
SIMILAR ~切れ EXPRESSIONS:
- バッテリー切れ: battery dead (katakana variant)
- 充電切れ: out of charge
- ガス切れ: out of gas
- 品切れ: out of stock
RELATED:
- 充電: charging
- 充電器: charger
- モバイルバッテリー: portable charger/power bank
The ~切れ pattern (from 切れる, to run out) is productive for expressing depletion of any resource.