I have an android device running Lollipop 5.1 (the brand is local in my country) which has a battery draining problem in stand by mode.
It drains about 10% of battery every hour or so without having any custom launcher
The battery capacity is 1850 mAh
WiFi is turned off. I only use one SIM
I have been monitoring the phone since I bought it, I haven't used it to call someone and my network signal is completely stable and the only time spent on screen is to check battery percentage.
Should I be worried or is it okay for such a device to consume this much battery in stand by mode?
Note: I tried installing launchers which seem to be causing more battery consumption in stand-by. I uninstalled all third party battery saver apps and turned android integrated power saver on.I also tried factory resetting the phone twice.