Is it possible to overcharge a tablet? Will not come on since overnight charging.

It may not power up until cooled off.

The battery drains while the item is off, on laptops, tablets, and flashlights. ANYTHING with a battery will do this.
Your device is low on power. Charge it for a day and it should be workable.
The longer you let it go without a charge, the worse your battery will be. (You cannot overcharge it.) Some have to get a new device because they let it go a few weeks without a charge.
You should charge it every week.

You should check the Voltage and Amperage rate of your tablet's charger, should be same of cell phone.
If you've lost your tablet charger and you are not sure, don't do it. You might fry some circuits of your tablet by Voltage overcharge
Ask someone with a similar tablet for this info, It is on any charger

rotating circle usually means that device IS charging
good luck

Cant you just take it back to shop.

The battery on the Asus does take a very long time to charge (over 12 hours before you use it the first time, then 8 hours or more each time). It takes even longer if you charge it from the USB port in a computer rather than connect it to its dedicated charger, or if you use it while it's charging. If you've already charged it for 8-12 hours, try turning it on by pressing the power button *and holding it down* for a couple of seconds before releasing it. Then, when using the tablet, try keeping it hooked up to the charger when possible, or at least recharge it overnight.

You can check on battery charge by tapping "Settings" at the bottom of the Home screen, then tap "Battery" in the Device category. The % charge will be at the top of the screen. I enjoy my Asus tablet, and it's good for several hours at a time between charges, but you do have to keep it charged up. Good luck!

So, greyhen2, we meet again. Here's the answer I gave to your other posting of this same question:

The battery on the Asus does take a very long time to charge (over 12 hours before you use it the first time, then 8 hours or more each time). It takes even longer if you charge it from the USB port in a computer rather than connect it to its dedicated charger, or if you use it while it's charging. If you've already charged it for 8-12 hours, try turning it on by pressing the power button *and holding it down* for a couple of seconds before releasing it. Then, when using the tablet, try keeping it hooked up to the charger when possible, or at least recharge it overnight.

You can check on battery charge by tapping "Settings" at the bottom of the Home screen, then tap "Battery" in the Device category. The % charge will be at the top of the screen. I enjoy my Asus tablet, and it's good for several hours at a time between charges, but you do have to keep it charged up. Good luck!

first ask your self where you got it from and why you got it.

p.s. i am 9

I find charging for 24 hours before use will yield the maxium capacity, after that overnight charge is fine. I would wait until tablet is activated before the sd cards are inserted.