他在为蓄电池充电。用英语怎么说？

他在为蓄电池充电。

He is charging a storage battery.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

charging

n. 装料，炉料；v. 装( charge的现在分词 )，控诉，记账，使充电；

例句
He's charging you around about a hundred pounds an hour for his services.
他提供一小时服务，要价大约100英镑。

storage

n. 贮存，贮藏，储藏处，仓库，贮存器，蓄电（瓶）；

例句
...big steel storage bins.
钢质大储藏箱

battery

n. [电]电池，蓄电池，[军]炮台，炮位，一组，[法]殴打；

例句
Free range and battery eggs, boiled for four minutes, were hard to tell apart.
柴鸡蛋和笼养鸡蛋在煮过4分钟之后很难区分。