This is my first post. I have to be honest I am quite hungry towards fairphone 2, I have bought it in February and changed once the battery, but battery maximum length is less than 12 hours. Moreover, in these last months, it lasts even less (from 7 to 10 hours max) and the CPU gets really hot (almost painful to the skin). Now before complaining officially and ask for a phone change or reimbursement, I want to ask you for help starting with one problem at a time. I want to notice that I am an average user (normally I use wi-fi, I do not use so much social media, I watch videos less than one hour a day, I use google maps and other apps for managing my day, but nothing excessive etc…)
My first problem is: the battery usage app (see attached photo) is always wrong about percentages and if you sum all percentages of use, it does not add up to 100 % and this is always like this (every day) and therefore I cannot understand where is the problem and what app or system is draining my battery. How can I do? please help!
ps I have also other problems (re-booting, calls closed abruptly in the middle of conversation etc.) but battery is too much important and always present!