After the MM update, my battery has been excessively discharging when not in use. It charges to 100%, but in a few hours without use it is completely dead. GPS has been disabled and screen brightness set as low as it can go. NO apps running in background. After reading previous posts on here, I cleared the partition cache and reset phone to recalibrate battery. So far nothing has worked.
Furthermore, I've noticed that when it is charging it will say fully charged at the bottom of the screen, but the battery app says that it's only 69% charged. When I access the operating system menu (by holding power and volume down), it states that the battery is low (this is after reaching a 100% battery charge level and powering down immediately). The only thing that I haven't done yet is a factory reset, but I wanted to see if there is anything I can do before taking that step. Any help/guidance is greatly appreciated! Thanks in advance for your help!