Hi, I have purchased Aspire Plato 5 weeks ago and I am facing issue when I charge the device. The battery level currently is around 30-35% charged , as soon as I put the device on USB charge, the battery shows full and I believe it's actually not charging. When I remove the device, it's still around the 30% mark. Can someone help. I have switched to ecig after 8 years of smoking. Thanks in advance.