The batteries are designed to be leak-proof and hermetically sealed.

这些电池的设计防渗漏，且密封性强。

《柯林斯英汉双解大词典》

The batteries are running down.

电池快耗完了。

《柯林斯英汉双解大词典》

They go to class while the batteries are being charged.

他们上课的时候电池正在充电。

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"The two batteries are feeding power to the controller and then to my chest,".

VOA: standard.2010.01.27

(SAYING) Here at the GM battery lab, the Volt's 16 kilowatt lithium ion batteries are run through the rigors of extreme driving,weather fluctuations and abrupt movements.

VOA: standard.2010.07.30

"The power source for the aircraft are the two battery packs you see on either side, which are lithium ion batteries which are similar to what you find in our laptops, only custom made for us for this application."

VOA: standard.2010.08.11

The batteries are suspected of contributing to two jumbo-jet 747 freighter crashes since 2010.

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The batteries are 100 percent recyclable, and currently have 5, 000-cycle life (the company wants 20, 000 cycles, plus 20-year calendar life).

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It can even depend on what time of day the batteries are charged because night-time electricity is less dependent on coal.

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