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2. Don’t assume turning off Wi-Fi will always help.
2.關(guān)閉Wi-Fi不總是有用
A common suggestion for extending battery life is to disable Wi-Fi. However, if you’re in range of a strong Wi-Fi signal, your phone uses less energy to connect to the Internet with a Wi-Fi connection than a cellular one. If you regularly use apps that rely on your location, having Wi-Fi enabled helps your phone determine its location without having to rely solely on power-hungry GPS features, so it actually helps a battery last longer.
一個關(guān)于省電的常見建議是關(guān)閉Wi-Fi。然而，如果你所在的地方Wi-Fi信號很強，相比蜂窩網(wǎng)絡連接，手機使用Wi-Fi就可以用很少的電量連上網(wǎng)絡。如果你經(jīng)常使用和位置有關(guān)的應用，打開Wi-Fi就可以讓手機檢測到自己的位置，而不是僅僅依賴非常耗電的GPS功能，所以這對省電也有幫助。
An exception is when you’re at the edges of a Wi-Fi network, where your phone is struggling to get a good connection, and you have a good cellular data connection. But in most cases, you’re usually better off keeping Wi-Fi enabled.
不過，如果你正處于Wi-Fi網(wǎng)絡覆蓋的邊緣，手機努力想得到更好的連接，而且此時蜂窩網(wǎng)絡數(shù)據(jù)連接良好，這種情況下例外。但是在大多數(shù)情況下，最好還是讓Wi-Fi開著。
