Galaxy Tab 3 have different screen sizes: 10.1 , 8. and 7 inches, and each one have its own problem of not charging and different solution to fix it.
The 7 and 8 inches Galaxy Tab 3 : disconnect and connect battery might solve problem, firmware need to upgrade to the latest version which fixes the not charging issue when battery drains completely.
The 10.1 inches Tab: problem might be bad USB cable, adapter, or USB charging port. Without details, I cannot guess which one is your problem.
Assume your adapter and USB cable are working, then the problem might be from USB charging port
05-31-2015 11:56 AM