Lot of ways to extend your battery life. For example:
Solution #1
- Fetch data manually or less often if you had to fetch automatically
- Turn off WiFi
- Turn off Bluetooth
- Disable the parallax effect
- Stop unneeded running programs
- Turn off vibration
- Reduce Screen Brightness
- Turn off Auto Brightness
- Don't automatically update apps
- Auto-Lock iPhone
- Prevent Background App Refresh
- Turn off Location
- Turn off Push Email
- Turn off Siri's raise to speak (do you really need it?)
- Disable notifications
- Turn Off Location Services
- Auto Lock sooner (eg : 1 minute)
Solution #2
- Power cycle. About once a month, and certainly if you're having problems, you should completely drain your iPhone, iPod touch, or iPad's battery - drain it until it shuts down on its own - and then charge it back up to full.
- If you're not using it, turn off the Cellular Data and 3G.
- Restart/reset your device. If you haven't rebooted in a while, give it a try. There could be a rogue process or something else doing what it shouldn't be doing, and a restart can often fix that.
- Let the battery run completely dead before charging (this might be nothing to do with the battery power, but it saves the battery life).
- Check your cell signal. If you're in an area of weak signal, or at the edge of LTE or 3G support, your iPhone's radio could be screaming away on full power just trying to stay on the network, or switching between connection types, and wasting a lot of power. If you have bad reception, consider a micro-cell at home or at work. If you're at the edge of LTE, turn it off in Settings and stick with 3G until you get to a place with better coverage or better switch to airplane mode.
- Clear the multitasking bar. When on the home screen, double click the home button and hold on one of the apps until they shake and a little X is at the top of each app. Clear all the apps. (Caution : This won't delete the apps, it will just stop them running on the background.
- Restore your device as new. The single biggest cause of battery life problems with iOS devices occurs when they are restored from backup and not set up as new devices. Whether it's cruft or corruption, a clean install as a new device -- incredible pain in the butt though it may be -- is usually the best fix for any battery life issues. This is the nuclear option. You will have to set up absolutely everything again, and you will lose all your saved data like game levels, but in most cases your battery life will be better than ever.
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