It's a Toshiba Satellite S55T and it's got a very strange issue I've never seen before, there is power in the battery and it is charging but windows says it has 0% and if I unplug the AC adapter in the bios the computer will run on battery power but if I unplug the cable when windows is open the computer will go into power saving mode and shutdown because it thinks the battery has 0%. my first guess was just replacing the battery i found one and plopped it in there a month later and it has the same issue, it shows 0% the computer is only around 13 months old I tried windows 7 and windows 10 both have the same issue
If yes then contact Toshiba warranty service.