The Prius Plug-in can go about 13 miles on battery-power alone.

插电式普锐斯单用电池能行驶约13英里。

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While each box contains a beacon, the unit only has enough battery power to transmit a signal for 30 days.

虽然每个盒子里都有一个信标，但这个装置的电池只能够传输30天信号。

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Even if you did not add new apps to your phone, an app update alone can use lots of battery power.

即使你没有给手机添加新的应用程序，单是应用程序更新就会消耗大量的电池电量。

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But Paul Woods says that idea is limited by the batteries used to store energy and that there is no battery currently available that can power long-haul trucks or heavy machinery.

VOA: standard.2009.09.02

The reason is simple: Battery-power is proving to be a small niche player.

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Both iLoud and iLoud MINI are also equipped with a high-performance Li-Ion rechargeable battery with smart power-management features that reduce its power consumption, making possible to go long periods without recharging, an important factor for mobile users.

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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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