But there is still no lithium battery light enough to power a small electric car over a reasonable distance on a single charge.

但是仍没有轻易做到一次充电能为一辆小型电动车通过一段合理的道路提供电力的锂电池。

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Useage:Oxygenate , catalyst, analytical reagent. It is widely used in the manufacturing of special copper, glass, ceramics, enamel, and dry battery light.

用途：氧化剂、催化剂、分析试剂。广泛用于特种铜、玻璃、陶瓷、搪瓷和干电池灯制造。

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The battery is also a flashlight, and it can provide ten hours of light.

电池也是一个手电筒，它可以提供十个小时的照明。

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He compares this to a battery-powered light, in which you hook up the wires and electrons flow to make a light bulb turn on.

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In other green tech and design news, Hitachi unveiled an impressive new wireless controlled robot to help with the Fukushima Daiichi cleanup and London-based designers Martin Riddiford and Jim Reeves developed the GravityLight, an amazing low-energy, battery-free light that works by harnessing the power of weight and gravity.

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Lastly, below the battery slot is an indicator light for wireless connectivity, while another on the right lets you know when the battery is charging.

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