1.Adjust your iPhone 5 screen brightness
This is going to sound nuts, but it is not necessary to set your iPhone 5 screen to 100 percent brightness. For most iPhone owners, though, you should keep the screen at half or even lower if possible. Setting the display to auto-brightness should also help with the battery.
2.Switch off unused networks and services
Networks and services for whatever reason seem to use a lot of charge on the iPhone, so switching them off will make a huge difference in regards to battery. Turning off the GPS and Bluetooth connectivity when not in use is key, as is switching off Wi-Fi when you are not in range.
3.Reduce background data and syncing
Even handset manufacturers like Apple do not necessarily get this. Set your various apps to manual fetching to extend your device's battery life. This works wonders as background syncing usually sucks down the most juice.
4.Turn off "Raise to Speak" function
When the iPhone 5 first came out, many said "Raise to Speak" caused battery drains. Anyway, unless you use it often, or find it useful, you can turn it off for good.
5.Take care of your iPhone 5 battery
For the long-term health of your iPhone 5's battery, make sure to charge often and do not let the battery drain completely before you decide to plug it into the charger. This is called 'power cycling,' and it is key to extending the overall lifespan of any battery.
6.Turn off location services for apps
Each app is given permission to use location data, even apps that do not really need it. Facebook and Twitter, for example, have access to your location. Do they need it? Probably not. Anyway, choosing which ones need it and which ones do not can save you a lot of battery life.
