hi in this I will tell you some important things that may help you in making your android phone battery long-lasting in other words how can we increase battery backup before we start I just want to clarify that this method is not for the gamers like who plays high-end games like pubg mobile cod mobile etc so if you are one of those then you can leave this because it will decrease your gaming performance and you got a lot of lags not minimum it works for rooted and non-rooted devices so let's get started with non-rooted devices
how to fix battery drain issue for non-rooted devices
Turning off wifi Bluetooth and location (GPS)
if your battery drains fast and you don't know the reason why the battery is draining fast as you might not focus on Bluetooth GPS and wifi if you are not connected to the internet or you often use wifi then simply turn off Bluetooth (if enabled) and also turn off location and wifi it helps a lot in improving battery life in case if your battery drains so fast
the turning of auto-update apps also helps a lot in saving battery life because it running in the background and increase battery usage so go to play store and turn off auto-update apps to improve your battery life
5.off background data usage
the turning of background data usage of apps like Facebook messenger Instagram in settings also improves the battery usage
do not use any other sensor like a wake up the screen by putting hands over screen avoid using face unlocks just like this because it consumes a lot of battery power and then you got a battery drain issue
if all the above methods are not working for you then you have to replace the battery
how to fix battery drain issue for rooted devices
follow all the instructions given up and then go to the google and install l speed booster or click
here and set all the examples to save battery and one now go to the play store and type performance tweaker and install it and click on change governor to battery saver now you have been done