I can do anything with my S4 mini from 9am to 9pm, but when the battery hit 25%,in less than 10 min i have 15% left even if the phone is not used, then 5 minutes later,5%…
I have sync on, but i only use wifi or 4G when necessary. My screen brightness is 40-45%.Thanks
I have android 4.4.2.
Read more: Android battery drain too fast from 25 to 5%?