WHEN electricity goes out, mobile phones are often the last lifeline.
Smartphone batteries are a finite resource, however, so below are some steps users can take to preserve remaining battery life in between recharges.
Alternatively, phone battery conservation apps are available for Google and Apple smartphones that turn off many of these services automatically.
Phones can also be charged via USB connections from laptop computers – assuming the computer was charged when the power went off – and with portable batteries produced by companies such as Mophie, PADACS and Samsung.
1. Turn off wi-fi and Bluetooth connectivity: If your phone has a sufficient mobile data connection, turning off these extra connections can save power.
2. Turn off 4G connection: Smartphones often use more battery power connecting to the 4G network. If you don’t need the speed boost, turn it off. Google Android users can select a different Network Mode in settings, Apple users can flick the virtual switch in Network settings.
3. Turn off GPS: Unless you need mapping information, turn off your smartphone’s GPS feature. Apple users can turn off Location Services, for example.
4. Dim your screen: A mobile phone’s screen is its biggest battery-eater. Turning down its brightness can limit the power used, as can decreasing its automatic screen timeout to 30 seconds.
5. Stop syncing unnecessary services: If you don’t need to synchronise your Twitter, Facebook, Google+ and Dropbox accounts, stop them. Google Android smartphone users can access this in Settings and Accounts.