Samsung galaxy tab 3 10.1 gt-p5210 turning off by itself
Samsung galaxy tab 3 10.1 gt-p5210 turning off by itself on 50% battery and changes time and date to 1st jan 2000
crwdns2934109:0crwdne2934109:0
crwdns2889612:0crwdne2889612:0
1
From your description of the problem it feels like it's an issue with the battery or the battery sensor.
crwdns2934271:0crwdnd2934271:0 Hortman crwdne2934271:0