1)Turn on Battery Saver. Select Settings > battery saver. Note when Battery Saver is on, your phone will no longer: automatically receive email and calendar updates, update some Live Tiles and allow apps to run in the background.
2)Stop your phone scanning for available Wi-Fi networks if those are not available. Select Settings > WiFi > Off.
Switch Bluetooth on only when you need it. Select Settings > Bluetooth.
3)Use network connections selectively. For example, if the signal strength of the mobile network varies much in your area, your phone must scan for the available network repeatedly. This increases the demand on battery power. If the 3G connection is on in the mobile network settings, your phone searches for the 3G network. To switch off the 3G connection, select Settings > mobile network, and deactivate the 3G connection.
4)Reduce the frequency of email synchronization. Select Settings > email+accounts > YourEmail > Download new content.
5)Use a dark theme. Select Settings > theme > Background > dark. Select also dark theme in applications that offer an option.
6)Reduce the screen brightness. Select Settings > brightness > Level. Disable the automatic feature first. The brightness level also affects the Automatically adjust functionality.
Use a Wi-Fi connection to connect to the internet, rather than a mobile data (GPRS or 3G) connection.
7)Switch off location services if not needed – so the phone will not look up your location frequently in the background. Select Settings > location > Off.
8)Disable unneeded background applications. Select Settings (swipe left to applications tab) > background tasks
9)Use wired headphones, rather than the loudspeaker.
Switch off unwanted sounds and functions, for example Vibrate. Select Settings > ringtones+sounds.
10)Switch off “connect with Xbox LIVE” when not needed. Select Xbox LIVE > Settings > Connect with Xbox LIVE.
11)Switch off your phone or switch flight mode on whenever phone is not needed, for example, while you are sleeping. Note that the alarm clock is not active if the phone is off!
12)Ensure your phone's battery is fully charged. Check Settings > battery saver > battery information. Note that older chargers may not fully charge the battery.
Note: it is recommended to use the original charger found in the sales package to charge the battery of your phone.
Note: make sure that your phone is running the latest software to get battery related improvements.
If the battery loses the power fast even though there are no features consuming the power, switch phone off and back on. The battery may be also wearing out and needs to be replaced with a new one.
