Power for the electric motors comes from a 506-pound lithium-ion battery pack, which Jaguar claims takes a full charge in just 6 hours at 240 volts.

电动机的能量来源于一组506磅的锂电池组，捷豹公司表示，在240伏电压下，一次充满电只需要6小时。

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Hybrids such as the Toyota Prius and Ford Escape use nickel-metal hydride batteries that are larger than lithium ion systems, the latter of which can pack more electric power into a smaller space.

象丰田普锐斯和福特翼虎这样的混合动力车使用的镍金属氢化物电池比锂离子电池系统要大，后者能把更多的电能封存在一个更小的空间内。

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A portable electric power tool including a housing (5) having one end to which an L-shaped battery pack (2) is installable.

一种便携式电动工具，包括壳体(5)，其具有一个端部分，L形电池组(2)可安装在该端部分中。

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The Tesla Roadster, which indeed uses Li-ion batteries, stores 56 kWh of electric energy and delivers up to 215 kW of electric power (a NiMH battery pack with the same electric energy would weigh over twice as much).

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Power is supplied by an electric current generated in a pack outside the body.

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The C-Max Energi has an EV mode button on the center stack that lets the driver choose between three modes: electric-only driving, normal hybrid mode (which blends electric and gasoline engine power as appropriate) or EV-later mode, which reserves the battery pack power for later use.

FORBES: C-Max: Ford Makes A Great Car -- And Gets Slammed Anyway