I have had my tab s since march and it seems like it takes AGES to charge. Today it took 7 hours to fully charge is this normal? It's the T-mobile varient btw
Are you plugged into a wall outlet or a computer USB port? The latter will always charge more slowly. If you're plugged into a wall outlet, go to Settings>Battery and see if it says "Charging (AC)" or "Charging (USB)." If it says the latter, then something's wrong with the charging plug, because it's not recognizing the wall outlet, and therefore drawing a lower current (equivalent to a USB port). In that case, try a different charging plug.
The OP mentioned having the tablet only since March, which is 7 months. That's pretty quick for the battery to wear out, unless it was a used or refurbished device. Of course, the battery might just be defective.