Why Android Phone Battery Drain So Fast. Set your android phone screen to save power. The Samsung Galaxy S21 is an extremely capable Android phone for as long as its battery lasts.
If you processor is not power efficient then it may lead to battery drain fast. There are various reasons as to why the battery quickly runs out on your Android based device. The phones operating system is outdated.
Google services arent the only culprits.
Most of the time though the issue is with the core system of your device. High screen brightness of a phone to clearly see captured photo. High screen brightness poor signal too many background apps services old phonebattery etc. Most of the time though the issue is with the core system of your device.
