battery life

基本解释

This will have almost no impact on battery life.
這對電池壽命幾乎沒有任何影響。
To see how connecting with the modem over 3G or 4G affects battery life, I ran some tests back at my lab.
爲了測試3G和4G是如何影響調制解調器的電池壽命的，我在我的實騐室進行了一些測試。
It make sense to make this a more temporary option for both battery life, and because of the creepy factor.
這意味著使它成爲一個臨時的選擇對於電池壽命和令人毛骨悚然的因素。

The iPhone 4 is faster,thinner, has a longer battery life, and it features video calling.

Long battery life, easy on the eyes, the Kindle is good for one thing — books.
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Battery life has also yet to be proven, especially with features like automatic cloud backup enabled.
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However battery life of controllers is subject to how you recharge, (frequency and levels).
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the length of time a device can continue to work before it needs its battery to be recharged (= to have more power put into it)