Powerful motor runs on one AA battery.

强大的发动机运行在一节aa电池。

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These clock extracts every bit of juice from a discarded AA battery.

这些时钟从丢弃的AA电池中提取能量。

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The SpareOne mobile phone is absolutely unique - running on one AA battery, it keeps its charge for up to 15 years.

“备用一号”手机是独一无二的--只需一节AA电池，就能待机达15年。

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Battery life is rated at 35 hours--impressive, given that is uses only a single AA battery.

FORBES: Rio, Redesigned

The Cord Free uses a AA battery that is sufficient to give it 25 hours of talk time and three months of standby power.

FORBES: Magazine Article

The plastic devices run on one AA battery, weighs a little less than 3 ounces, and come in four colors: white, blue, orange and pink.

CNN: A tiny Roomba for your phone and tablet