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Aug 08, 2013

Why is my Android battery life better with WiFi always on?

I have an LG Optimus, and after changing my WiFi settings to keep it on even when the phone sleeps as a colleague suggested, my battery life has improved noticeably. This seems counterintuitive to me, but the results are obvious. Why would leaving WiFi on improve rather than degrade battery life?

08/09/2013
Wstark had a great answer. Sometimes you just never know what will help preserve battery life. With things like this, the opposite of what we'd think is true is true.
w
08/09/2013

Basically, because it takes less power to ping a WiFi network than it does for a cell tower, and even when in sleep mode it is still checking for IMs, SMSes, etc. Here is a more detailed explaination, if you are interested:

http://www.androidcentral.com/android-101-save-battery-keeping-wifi-aliv...

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