Widely used in battery back up power systems and solar systems.

广泛使用的电池备份的电力系统和太阳能系统。

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A charge cycle consists of charging your battery back up to its full capacity when it's out of juice.

循环充电包括了当它没电的时候，把你电池再次充满。

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For example, it recently won an order to provide a 2.2 megawatt-hour battery, the size of a shipping container, for use in tests to back up a Chinese coal-fired power station.

例如，它最近获得了一个订单，为中国的一个火力发电厂提供一个2.2兆瓦时，集装箱大小的电池，进行备份测试。

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The SMILE Plug includes a 5V Lithium-Ion polymer battery for back-up power, making it ideal for learning environments where electrical power can be inconsistent.

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The lines carry all the power corded phones need to function, and phone companies have massive battery banks and generators to back them up.

WSJ: Phone companies prepare for storm power outages

After charging up the battery, sliding it into the rack system at the back of the bike (which could not be simpler), and locking it into place, you're ready to go.

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