15039 Views 6 Replies Latest reply: Oct 6, 2008 4:02 PM by ltkkk
The bottom line is 3G uses a lot of power compared to EDGE, so it will eat power.
Push mode requires a constant connection to the Internet, so it will eat power.
GPS reception and updating the associate Google map will eat power (unlike a regular GPS device, the iPhone has no built-in maps and thus must download a new map from the Internet every time you move.)
Combine those things and you get a lot of "idle" power draw.
If you use your phone just for calls on an EDGE network, you'll get maximum battery life.
It's not just the iPhone; all smartphones use battery like that and arguably the iPhone has the best battery life of any 3G-capable smartphone.
You are, of course, welcome to return your phone if its capabilities aren't what you had expected or hoped; Apple can't please everyone.
Just posted this message below to apple's feedback for iPhone. Perhaps Apple will hear this if more of us post messages like this. Thanks. LTK
I just bought an iPhone 3G and heard that I can stretch the battery life if I turn off the 3G, GPS (location services) & Wifi radios when they are not in use. I did this for the last 2 days but found this to be terribly inconvenient & thought his can be easily automated.
Perhaps Apple and add a feature in the form of a switch which turns off these radios when the "standby" button at the top is pressed to turn off the screen. I can not use any of the radios if the screen is off anyway. The only inconvenience I can see is a slightly longer response time when the screen is turned back on but I think I would live with is if this meant 20+% more battery life.
Hope his helps.