Battery in device thinks the battery is dead even when fully charged with recent updates

Im on a barns and noble nook hd tablet. Ever since the 0.15.90 update my tablets battery seems to think its dead even when it's fully charged. It mainly affects when not running the app itself. But wheb useing other apps or even on my home screen or evenwhen the scren is turned off it makes my tablet turn off like it died. I've uninstalled the app a few times and even went to version 0.15.7 and the problem was no longer affecting my tablet. But when I go to and here version it has that problem