How to maximize iPhone battery life

Tips to maximize your iPhone Battery Life

a. Turn down the LCD. The new iPhone’s screen is brighter. You may save your battery power by changing “Settings -> Brightness”. I keep mine at 10% brightness.

b. Turn off Vibrate in Games. Playing a game with vibrate happening frequently is an unnecessary battery suck. If you can turn it off.

c. Limit use of A-GPS tracking. GPS tracking is still pretty useless after you’ve gained your bearings, since there isn’t a turn by turn navigation mode for driving. I exit out of maps once I’ve got the directions in my mind, and if I lose myself again, I just start maps up once more.

f. Buy Apps and Songs in iTunes at your computer not over Wi-Fi or Apps over 3G.

g. Set the Autolock to 1 or 2-minutes. It can be set under “Settings -> General -> Autolock”.

h. Use programs with 3D less often. Not surprisingly, I’ve noticed that when I play games rendering 3D, battery life drops. Using the graphics chips more intensely will crank up power usage, but maybe the drain is also because of the nature of gaming: Unlike email or browsing, gaming is a full-time, full attention endeavor that also keeps the CPU, GPU and LCD going full-time. (I’d like to think this is a more useful tip than “don’t use your iPhone” but maybe it’s not something you can avoid if you’re a gaming addict.)

I. Set Push to Off, and Set Fetch Time. Push email isn’t that useful for me because I know I’m getting emails all day long and that I have to be checking all the time. Push does use more juice than the fetch mode, which checks for calendar, contact and email syncing at set intervals of 15 minutes to an hour. I set mine to 1 hour unless I’m out of the office. If you seldom update your contacts and calendars, you might even be better off syncing by cable to iTunes, while you pick up a charge.

J. Stay Juiced. If you’re at computer or in a car, you should try to use a cigarette adapter or USB cable to pick up a few minutes of charge.