My samsung tab E is just 1yr and a month old. I left it on with 19% battery overnight. The next day, as l was about to use it, it's off. I charged it but nothing happened. The flash logo just showed on the screen, but thats just it. It didn't charged at all. So l left it to charge for almost 2 days, still didnt charge. Comments on google instructed me to press the power and volume buttons both at the same time for 20 seconds while plugged on the charger , it started charging.
I should have done a quick review before l bought my tablet. According to other comments, their tablets are also less than 2yrs old and getting the same issue as mine. Some even had their batteries changed but that didnt helped at all.