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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The battery back-up makes sure you still wake up on time when your power goes out.

该电池备份可确保您仍然准时醒来时你的力量熄灭了。

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Adequate emergency lighting (with a battery back-up) should be installed throughout the factory.

整个工厂需安装有足够的紧急照明系统(带有备用电池)。

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Others say the back seat is small. The T-shaped top of the battery rests underneath the seat, with the longer strip under the center console.

VOA: standard.2010.07.30

Furthermore, when presented with the opportunity to use a lithium battery back in 2011, Bombardier instead opted for something more conventional.

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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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Some say downgrading to Lion has brought battery life back to its earlier levels, though Apple has now removed Lion from the Mac App Store.

FORBES: Links 7 August: Apple's Mountain Lion Battery Problems Edition