Last Updated：2025/11/23

A portable battery, fitted with cables and a charger, used to charge a dead battery, especially in a car.

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battery booster

Source Word

battery booster

A portable battery, fitted with cables and a charger, used to charge a dead battery, especially in a car.

Japanese Meaning

車のバッテリー上がりを解消するために使用される、ケーブルと充電器が付属した携帯用バッテリー装置

I kept a battery booster in the trunk in case the car wouldn't start on cold mornings.

寒い朝に車がかからないときに備えて、トランクに携帯用ジャンプスターターを入れておいた。

Sense（1）

A portable battery, fitted with cables and a charger, used to charge a dead battery, especially in a car.

battery boosters

（ plural ）