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.
Lock Your iPad
It may seem obvious, but you should lock your iPad when you aren’t using it. To lock iPad, press the Sleep/Wake button. You can also set the Auto-Lock interval so your iPad will turn off more quickly after a period of inactivity. To set Auto-Lock, go to Settings > General > Auto-Lock and set the interval to a short time, such as 1 minute.
Use Your iPad Regularly
For proper reporting of the battery’s state of charge, be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down).
Lock Your iPhone
It may seem obvious, but you should lock your iPhone when you aren’t using it. You will be able to receive calls and text messages while it is locked, but nothing happens if you touch the screen. To lock iPhone, press the Sleep/Wake button. You can also set the Auto-Lock interval so your iPhone will turn off more quickly after a period of inactivity. To set Auto-Lock, go to Settings > General > Auto-Lock and set the interval to a short time, such as 1 minute.
Use iPhone Regularly
For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down).
10. Auto-Lock Sooner
You can set your iPhone to automatically go to sleep – also known as Auto-Lock – after a certain amount of time. The sooner it sleeps, the less power is used to run the screen or other services. Try setting Auto-Lock to 1 or 2 minutes.
Find it in Settings -> General -> Auto-Lock
11. Do Less Battery-Intensive Things
Not all ways to save battery life involve settings. Some of them involve the way you use the phone. Things that require the phone be on for long periods of time, or use a lot of system resources, suck the most battery. These things include movies, games, and browsing the web. If you need to conserve battery, limit your use of battery-intensive apps.
12. Sleep and Wake Less
Constantly putting your phone to sleep and waking it up will drain battery life. Of course these functions are common parts of using the phone, but you can also be judicious in your turning on and off of the phone and save battery life at the same time.
13. Buy an Extended Life Battery
If all else fails, just get more battery. A few accessory makers offer extended life batteries for the iPhone. If you need so much battery life that none of these tips help you enough, an extended life battery is your best bet. With one, you’ll get days more standby time and many hours more use.
14. Turn off Vibrate in Games
Playing a game with vibrate happening frequently is an unnecessary battery suck. If you can turn it off, turn it off.
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