Does WiFi being on affect battery life?

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iGal

Member
Bronze
Jul 27, 2007
170
2
18
SoCal
#5
i have WiFi in my house and if it stays connected does it kill your battery?
Yes, it's like any other function that you have running. Just like your battery lasts longer in airplane mode, when it's not connected (or trying to connect to) the AT&T network. It doesn't "kill" your battery--but yeah, it will drain it more than if it were off.
 

kdarling

New Member
Bronze
Jun 20, 2007
425
1
0
NJ, NC, CO
#6
Yes, it uses up your battery.

Therefore many other phones with WiFi, have either a dedicated outside switch to turn it on/off, or a dedicated button to call up a comms manager where you can click once to do so.

Apple's still new at the phone game. Plus they're trying hard to avoid dedicated buttons, which IMO is crazy in a phone :(
 

JnC

New Member
Bronze
Jun 17, 2007
333
0
0
#8
Actually the opposite can be true depending on the circumstances

If the iPhone is set up to fetch email at regular intervals, and If there is a WiFi network around that you're not using, EDGE will deplete the battery faster than WiFi.

If you use a WiFi network instead of EDGE, you can extend your battery life by about 25%. But it depends on how much email you have. EDGE is so much slower than WiFi, that it takes more power over a given time to perform the same job.

http://www.anandtech.com/showdoc.aspx?i=3036&p=4