- Disable 3G when you don’t need itUsing a 3G connection when talking or browsing on the iPhone drains the battery substantially faster than using an EDGE connection. Browsing speeds are slower over EDGE compared to 3G, but call quality is decent on either connection.
How to: Settings -> General -> Network -> Set ‘Enable 3G’ to on or off as required
- Disable 3G if you get a weak/intermittent signalIf you’re in a location where the 3G signal is very weak, the iPhone will have to work harder to keep reconnecting to the network which will drain the battery faster. Switch over to the EDGE network to avoid this if you’re in such an area for a long time.
How to: Settings -> General -> Network -> Set ‘Enable 3G’ on or off as required
- Use a WiFi connection for web browsing where possibleBrowsing over WiFi is not only faster than using an EDGE or 3G connection, it drains the battery less too. Use a WiFi connection whereever it’s available.
How to: Settings -> WiFi -> Select a network
- Disable location services when you’re not using itLocation services controls the use of GPS on Google Maps and other applications that make use of the iPhone’s location, such as geotagging photos when using the camera. While location services is switched on so is the GPS antenna, which will drain power even when you’re not using a relevant application.
How to: Settings -> General -> Set ‘Location Services’ to on or off as required
- Turn off Push notifications or increase the fetch intervalThis controls the frequency that your phone will automatically check for new data, such as downloading email for any account you’ve set up. The more frequently it checks, the faster it will drain the battery.
How to: Settings -> Fetch New Data -> Configure as required
- Turn on Auto BrightnessAuto Brightness will automatically adjust the brightness of the screen depending on ambient lighting conditions, so by switching it on your phone won’t be wasting additional power on the display.
How to: Settings -> Brightness -> Set ‘Auto-Brightness’ on
- Switch on Airplane mode if you have no signalIf you’re in an area where you know you’ll have no signal at all, the phone will automatically keep trying to find a network. By switching on Airplane mode you can prevent the phone from doing this and save some battery power.
How to: Settings -> Set ‘Airplane Mode’ to on
- Calibrate the battery indicator every two monthsYou can calibrate the battery indicator on the iPhone to make it more accurate by fully charging it up and then fully draining the battery. Do this every couple of months to ensure that what you see on the indicator is a reliable representation of how much power you have left.
- Charge your iPhone regularlyCharge your iPhone whenever you can to keep the battery topped up. It’s not possible to ‘overcharge’ the device as was the case with some older phones, so you don’t need to worry about damaging the battery by leaving it plugged in.
- Keep your iPhone cool while chargingIt’s important to charge the iPhone in a cool location - if you use a case you should remove it while the phone is charging. Charging the phone in a high temperature environment can dramatically reduce the lifespan of the battery.
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