1. Turn off what you don’t need
This one is just as it sounds; turn off what you’re not using. If you’re not using the Wi-Fi on your phone, turn it off. If you’re not using the GPS on your phone, turn it off. This will save you more battery than you can imagine. It’s a no-brainer but a lot of us forget or get too lazy to do that.
For Android users: if your phone has a “always listening” feature to pick up hot words for voice control you can turn that off as well if you don’t use it. To do that open up Google now > Settings >”Ok Google” Detection; you can change the setting as you need there.
2. Use manual brightness
The auto brightness feature on many phones are always on the brighter side, using manual brightness control will save you battery because you can choose what level of brightness you want to use. Pretty much all phones come with quick access settings. Even the iPhones have this now, after iOS 7.
3. Use a shorter display timeout setting
Typically your phone is set up to turn off it’s screen after 30 seconds, if you change that to 15 seconds you will see battery improvements over time. On Android you can do this by going to Settings > Display and lights > Sleep
4. Use advanced Wi-Fi settings
There are some advance Wi-Fi settings on Android phones that can help you save your battery. To enable these settings go to settings>Wi-Fi>tap the 3 dots on the right hand side or use your menu button>advanced; now, turn off “Scanning always available” if you don’t have the need for it, turn on “Avoid poor connections” and turn on “Wi-Fi optimization”
5. Don’t drain your battery to 0%
This is a rule of thumb when it comes to Li-Io/Li-Po (the type of battery in most smartphones) batteries. When you let your phone die automatically you actually damage the battery. It’s good to stay away from letting it go to 0%. I suggest you turn it off at 3% or 4% and charge it. With that being said, it’s a good idea to let your phone completely die once every month or two month to sort of “reset” your battery’s internal memory.
6. Use black background/black theme
This only applies to phone with AMOLED displays, that’s typically Samsung phones. Because AMOLED screens only light up pixels when there’s color on the screen. This means that when you use a black background the pixels on the black is turned off thus, saving you battery. With an AMOLED display, if you use backgrounds other than complete black you will see a battery drain.
7. Sync your backups via Wi-Fi
Change your backup settings to sync via Wi-Fi only. For Android users who use Google Photos, you can do that in the app itself. Same goes for all your other apps that you probably use for auto back up (dropbox, mega, box, etc.)
8. Change sync intervals of apps
This is another simple thing you can do; many apps that use data let you choose the sync intervals, you can change that with in the app itself. For example, on twitter if you hop into your settings, you can change the sync interval; I have it set to 2 hours.
9. Use battery saver mode if you have it on your phone
May phones come with battery saver mode; use that mode when you’re low on battery to get a little more juice out of it. Avoid using battery saver apps because the apps usually kill processors and typically turn off things you don’t need, which you can do for yourself. Sometimes the apps detect your hotspots for things like Wi-Fi and Bluetooth and turn those features on when you get to that location. This means that the “batter saver” app is constantly using your phone’s GPS, which drains battery.
10. Avoid storing your device in extreme heat
This is a no-brainer again; heat is bad for your phone and your battery. Don’t leave your phone inside your car on a sunny day.