3.Turn off the WiFi
Your Windows smartphone is set to automatically search for wireless networks. This process uses a lot of energy, so if you don't need a wireless connection right away, you may want to turn it off to save some power.
In Windows Phone 8.1, go the Settings app and tap WiFi.
Now, use the switch to turn off WiFi networking.
You can reach the WiFi setting quicker, if you press its button placed in the notification area. You'll reach the same screen as shown previously, where you can turn it off.
In Windows 10 Mobile, open the Settings app and go to Network & wireless -> WiFi.
Here, you can turn off the WiFi networking using the only available switch.
You can do this a lot faster, if you press the WiFi button in the notification area, until Off is displayed on it and it turns grey.
4.Turn off data connection
If you don't need data services for the next couple of hours, disabling the use of the data connection can help you save some battery time. Your Windows smartphone won't try to connect to the internet all the time so it will need less power.
In Windows Phone 8.1, go to Sett ings and tap mobile+SIM.
Now, use the switch to turn off Data connection.
In Windows 10 Mobile, open the Settings app and go to Network & wireless -> Mobile & SIM.
Use the switch to turn off the Data connection.
Alternatively, you can use the quick actions to turn off data connection. Tap the Mobile data button until Off is displayed and it turns grey.
5. Turn on battery saver
The battery saver feature is able to extend your battery life by limiting the background activity and push notifications when your device is low on battery power. Usually, the feature turns on automatically when the battery falls below 20%, but you can turn it on anytime you want.
In Windows Phone 8.1, go to the Settings screen and tap battery saver.
At the bottom of the screen, use the switch to turn on " Now until next charge".
In Windows 10 Mobile, open the Settings app and go to System -> Battery.
Close to the bottom of the screen, use the switch to turn on " Battery saver status until next charge".
You can do this a lot faster, if you press the Battery saver button in the notification area, until On is displayed.
When you need your smartphone's battery to keep on going, Windows Phone 8.1 and Windows 10 Mobile can be set so that it uses the least amount of power possible. When travelling to remote areas, on vacation or otherwise, the tips and features presented in this tutorial will make a huge difference. Try them out and you will see for yourself. If you have any other tips on conserving the battery of your Windows Phone, don't hesitate to share them in a comment.