I got one with a long battery life, and picked up an extra external battery to boot, on the recommendation of one of my readers.

我买了一台电池寿命很长的，还买了一个备用电池，这是一位读者的建议。

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Do you want some extra juice in your battery life?

你想在你的电池寿命的一些额外的果汁？

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Supplied with both a standard and large capacity battery, it delivers extra long battery life.

既一个标准，大容量电池来提供，它提供了超长的电池寿命。

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According to a LeapFrog rep, this allows for an extra hour of battery life from that of the previous generation.

ENGADGET: LeapFrog LeapPad 2 and Leapster GS Explorer hands-on (video)

Kindle Paperwhite is the most-advanced e-reader ever constructed with 62% more pixels and 25% increased contrast, a patented built-in front light for reading in all lighting conditions, extra-long battery life, and a thin and light design.

ENGADGET: Kindle Fire HD 8.9 ships today, 4G version to follow next week

Wysips says its 0.5 millimeter-thick screen can be plugged directly to the phone's power inlet to provide an extra four minutes of battery life for every 10 minutes it is exposed to direct sunlight.

CNN: STORY HIGHLIGHTS