I recently received a G-GRIP as a gift. When I plug the device into the outlet the red indicator light does not come on. When I turn the device on while still plugged in, it works. But when I disconnected it from the outlet after leaving it plugged in all night, it will not turn on (the red indicator light was not on). Why is it that my G-GRIP will not hold a charge (or even begin to charge) but still have the ability to function when plugged in?