Energy problem is very important for routing protocol in mobile ad hoc networks since these mobile nodes must rely on their limited battery supply.

能源问题对于移动自组网是非常重要的，因为移动节点只能依靠它们有限的电池供应。

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However, a new method could lead to portable desalination devices simple enough to run off solar power or a battery, but powerful enough to supply a family, or even a small village, with clean water.

然而，一种新的方法可能会导致一种便携式的海水淡化装置，它简单得足以赛过使用太阳能或电池的，然而其功能却强大得能满足一个家庭，甚至一个小村庄的清洁用水。

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But building a tiny, lightweight flying robot is tough when you need a power supply — like an onboard battery — to keep the MAV flying.

然而研制这种微小、轻型的飞行器是很困难的，因为必须要有如板载电池这样的电源供电才能维持它的飞行。

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The cooling system relied on an 8-hour battery supply, which are reportedly being supplemented by other similar batteries being airlifted by military aircraft if operators are unable to get the diesel generators or grid power back up in time.

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As the leading provider of power management ICs, including battery management and power supply technology, TI relies on power design expertise to drive innovations in wireless charging.

ENGADGET: TI details the wireless power chip in the Lumia 920, offers four times the charging area

For a home 4kW supply, rejuicing your battery could take upwards of 30 hours.

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