If you leave your headlights on you'll soon run down the battery.

如果你让车头灯一直亮着，很快就会把电池耗尽的。

《牛津词典》

The battery has run down.

电池没电了。

《牛津词典》

They run on battery-operated (用电池发动的) motors.

它们靠电池马达运行。

youdao

But his dream is to someday drive what he builds - the new Chevrolet Volt, an electric vehicle that can run for 64 kilometers on a battery without recharging.

VOA: standard.2010.07.30

All that we're waiting for now is the chance to test the much-lauded battery-life and do a full run-down with a review sample -- expect that pretty soon.

ENGADGET: Orange San Diego: Intel's Medfield phone gets benchmarked

The company's breakthrough solution, the Nectar Mobile Power System, delivers the only viable small form-factor battery replacement that provides the enormous run-time improvements demanded by today's CE devices.

ENGADGET: Lilliputian debuts Nectar Mobile Power, promises two weeks of battery life per cell

It has only one drawback--the battery to run the car hasn't been invented yet.

FORBES: Magazine Article