href="http://brandbattery.com">Brand Battery</a>: The battery life in the iPhone has to be one from the biggest complaints and during heavy usage, commonly e-mail synchronisation and using the phone, you may get 3 or 4 hours max. When I know I is going to be using the telephone heavily, I slip into conservation mode making use of the following methods. This really is usually at a conference or when I know I will not get to charge for a day or two.

This will extend the life for one more couple of hours which helps get via the day!

Turn sound off -If the mobile phone has to make a noise or vibrate, it's making use of battery existence which you desire to conserve. So turn it off.
Don't listen to music. If you need your telephone for e-mail or other work purposes, do not deplete the battery just listening to music
Change E-Mail to manual - If you have your iPhone configured to push e-mail down to your cell phone real time, turn this back to manual to conserve battery living. Do a manual pull of mail when and if you will need it.
Set Autolock to 1 minute. The longer the screen is turned on, the much more it uses the battery. You are able to obviously just put into sleep mode right away following use too.
Turn Bluetooth off should you aren't utilizing it.
Minimize the brightness as far as you possibly can without compromising your eyesight.
Turn Wi-Fi off when you usually are not employing it as that is a large battery drain.
Turn 3G off and use the slower speed GSM settings if mobile data speed isn't an issue for you.
Turn off Location Services. You know where the cell phone is!
At least once a week try to run your battery completely down anyway, then recharge your iPhone to 100%. This will keep your battery in excellent condition.

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