You can use features in your smartphone to control the amount of battery power used by apps. Additionally, any apps running in the background can also be controlled. To enable such features, first go to the Settings option of your Android phone and select Battery Optimization. Then activating the mentioned options is the solution.

Battery discharge
Never discharge your smartphone battery to 0% or charge it to 100%. This can significantly shorten battery life. Smartphones should only be charged when the device’s battery reaches 25%. A 75% to 80% charge of all devices ensures normal service.