battery life

基本解释

This will have almost no impact on battery life.
这对电池寿命几乎没有任何影响。
To see how connecting with the modem over 3G or 4G affects battery life, I ran some tests back at my lab.
为了测试3G和4G是如何影响调制解调器的电池寿命的，我在我的实验室进行了一些测试。
It make sense to make this a more temporary option for both battery life, and because of the creepy factor.
这意味着使它成为一个临时的选择对于电池寿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)