Battery Reporting Tab Pro T520

[EnergyPlus]

Hi. My buddy has a Tab Pro 4 and has conflicting battery life reports. Example today was turned device off at 38% and without charging, when he turned it back on 2 hours later it showed 64%. He said he was noticing fast battery drain but now questions the accuracy of the reporting. WiFi only, 4.4.2. Any suggestions? Thanks! I used to have one of these but can't recall this problem.

 

[Jeffrey]

Could be a reporting issue. Some devices have a battery calibration option. If his does not, a factory reset should help.