4. Set the Auto-Lock period to 1 minute – Change this under Settings > General > Auto-lock. This will prevent you from leaving your iPhone on for longer than necessary.
5. Set Push to Off, and Set Fetch Time – Push will “push” your emails to you rather than you having to manually check when you receive an email. This saves battery, so if there is no problem manually checking your mail, turn this off. Also turn Fetch off if you don’t need it, Fetch will synchronizecalendar, contacts and emails. Find this in Settings > Fetch New Data.
6. Turn off “Location Services” – Some apps may require the use of Location Services, but If it is not important to you, switch it off.
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