How small are these battery parts?

这些电池部件到底有多小呢？

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Our battery parts have high efficiency and high quality, easy install.

我们的电池组件具有高效率，高质量，组建安装方便，简单。

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It allows battery parts to be highly integrated and enabled batteries energy density to be substantially raised.

这种方法使得蓄电池高度集成，从而便其能量密度大幅提高。

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Officials said a circuit board and battery pack - parts of a triggering mechanism - had been recovered and the lid of a pressure cooker, apparently blown off during the explosion, was found on the roof of a nearby building.

BBC: Boston Marathon 'bombing suspect' seen on video

The new software will both automatically reduce battery consumption and give users more control over parts of the phone that are consuming battery.

FORBES: HTC Focused On Improving Smartphone Battery Life

This time I had a "brain pacemaker" installed, which uses wires and a battery source to stimulate deep parts of the brain with electric currents.

CNN: 'I had brain surgery while I was awake'