As we all know that the Tablet comes with the USB port to connect to the other devices, and usually it will appear under charging when we connect it like the computer etc.. However, many of us will think it is convenient to let it to charge. What i want to say is that it is better to charge it with the original charger in order to protect the battery. Any question can contact us without hesitation at here: http://www.cube-tablet.com/buy-products.html