Activate Low Power Mode
Sometimes the simplest things are the best.
This feature automatically tweaks multiple settings to save battery power, disabling automatic fetching of new mail, reducing screen brightness, and automatically locking the phone and powering off its display more quickly. Apps are also able to detect when low power mode is enabled and can help to further increase battery life by disabling animations and other battery-heavy features.
And the great thing about this is that you're prompted to turn it on when the battery hits 20 percent and then again at the 10 percent mark.
You can manually activate Low Power Mode by tapping Settings > Battery > Low Power Mode. If you do this when you have a fair chunk of battery left - say above 50 percent - it's possible to get as much as a few hours of extra usage. The downside is that the iPhone does run noticeably slower, and this can put a dent in productivity.
This feature automatically tweaks multiple settings to save battery power, disabling automatic fetching of new mail, reducing screen brightness, and automatically locking the phone and powering off its display more quickly. Apps are also able to detect when low power mode is enabled and can help to further increase battery life by disabling animations and other battery-heavy features.
And the great thing about this is that you're prompted to turn it on when the battery hits 20 percent and then again at the 10 percent mark.
You can manually activate Low Power Mode by tapping Settings > Battery > Low Power Mode. If you do this when you have a fair chunk of battery left - say above 50 percent - it's possible to get as much as a few hours of extra usage. The downside is that the iPhone does run noticeably slower, and this can put a dent in productivity.
Turn off Wi-Fi when not in use
Wi-Fi really burns
through battery life, and it seems worse when it's away from your home
or office and actively searching for Wi-Fi it can connect to. If you
don't need it, turn it off.
Again, if you don't need it, turn it off. It puts the brakes on notifications and background apps that all put pressure on battery life. If you're out of cell coverage doing this can easily give you a couple of hour of extra battery life
Source:http://www.zdnet.com/pictures/iphone-battery-saving-tips-that-work
Turn off cellular data
his is for people who find themselves in areas where there's poor cellular coverage. One of the biggest drains on the battery I found was keeping the iPhone in a location where there was no cellular coverage. It continually looks for a cellular connection, burning through battery life in the process.Again, if you don't need it, turn it off. It puts the brakes on notifications and background apps that all put pressure on battery life. If you're out of cell coverage doing this can easily give you a couple of hour of extra battery life
Source:http://www.zdnet.com/pictures/iphone-battery-saving-tips-that-work
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