充電器的英文：
a battery charger

battery是什么意思：
n. 电池；一系列，一批，一群

It is the positive of the battery.
这是电池的阳极

The battery is flat.
电池快没电了。

The capacity of the batteries depends on the brand and type of batteries used.
电池容量决定于所用电池的类型和牌号。

The bacteria battery could become as small as a household battery.
微生物电池可以像一般家用电池那么小。

It is mains or battery powered.
它是由电源或者电池供电的。

charger是什么意思：
n. 充电器；战马；袭击者

You need to be a hard charger here.
你要做一个强势的突击者。

Each came equipped with a charger that plugs into an electrical outlet.
每一个机件都装有一个可插入电源插口的充电器。

Trickle charger (device for the slow continuous charging of an accumulator)
涓流充电器(使蓄电池缓慢而连续充电的装置).

Charging Port-Accepts the plug for your handset battery charger.
充电接口――与充电器连接进行耳机充电

The Solar Cell Tree Charger takes a lot less upkeep than your average household shrub, too.
此外，这种太阳能充电树所需的维护比一般的家庭灌木要少得多。