Samsung galaxy tab 2 7in wont charge or turn on.

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http://forums.androidcentral.com – I got my SG tab 2 a month ago. Had been working perfectly. Yesterday I put it in the charge (the factory charger that came with it) at 20% charge. Left it on charger all afternoon and through the night. Looked at it this morning and it wouldn't turn on. I put it back on charger. When i pushed the power button to see if it would come on, the picture of the battery appears with a "loading" circle on it then looks like its charging but then goes off. It keeps repeating. I have not left it in extreme heat or cold. Hasn't been dropped or got wet. It just started doing this. Also I got it (HowTos)