Overheating And Battery Drain

Jan 27, 2015
I am using stock 5.2.27 MI3W, after full wipe (clean install). Every time i am using my phone it starts heating really fast, the performance mode is not on, and after 10-15 minutes of browsing it has reached 39 degrees C and the battery has dropped with at least 5%. It's been a problem for a long time even with previous clean installed ROMs and at this point I've no idea whats going on. I barely make it to 3 hours of screen on time. I am using chrome for browsing, but it doesn't drain just there. Everything I do drains the battery afwully