Answer to: Why does my Samsung Galaxy Tab 3 keep shutting off?I happen to gave the same issue. I have narrowed the problem down and found that it doe's not matter about the charge at all. I have noticed that the Tablet overheats in a specific location. While looking at the screen you can locate the location on the mid-left hand side of the device and the effected area is the size of a US dime. It shuts itself off and I have noticed that upon restart the Wifi is turned off. This tells me that the device likely has a faulty Wifi receiver. I have never dropped my device nor have I spilled anything on it. It is practically in excellent shape despite the issue. I will be sending my device back to the manufacturer to get it repaired and will update this post upon confirmation of the real issue.