平常，充电器与人造心脏相联接(以供电)，但如果病人配备有电池，可以将电池随身携带在背心或背包内，从而使病人能够自由活动。
The charger is usually plugged into the mains, but if armed with a battery it can be carried around for hours in a vest or backpack, thus allowing the patient to roam freely.
孩子吞食的是一枚“纽扣”电池，一枚银色扁平碟状样的东西，是用来给遥控器，玩具，音乐贺卡，浴室秤及其它家用电器等供电的一枚电池。
The child had ingested a "button" battery, one of those flat silver discs used to power remote controls, toys, musical greeting CARDS, bathroom scales and other home electronics.
一名瑞士男子近日想出一个给手机充电的绝招：把太阳能电池板绑在狗身上，这样就造出了随时供电的便携式“太阳能狗”充电器。
A Swiss man has created a "solar dog" phone charger that combines a solar panel with a dog for the ultimate portable charging solution.
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