1.
portable battery; power bank; portable charger
A portable device used to recharge electronic devices like smartphones and tablets when away from a power outlet.
Etymology
From English "mobile battery."
Alternative names
Specifications vocabulary
Common collocations
- モバイルバッテリーを充電する - to charge the power bank
- モバイルバッテリーで充電する - to charge with a power bank
- モバイルバッテリーが切れた - the power bank is dead
Usage
飛行機の機内持ち込み制限があるので、容量に注意が必要。
(Airlines have restrictions on carry-on, so be aware of capacity limits.)
Related Words
Compare:
携帯充電器 (portable charger)
Related:
電池切れ (dead battery)
Compare:
予備電源 (backup power source)