Hello, I recently got my hands on a DJI Phantom 2 Vision Plus. I plugged the batteries in, and within 15 minutes the batteries LED's showed that it was fully charged. When I plugged the battery into the quad and bound it to the controller. I powered on the props and waiting for 16 satellites. When the quad took off everything was okay but within 30 seconds the battery life quickly dropped at a rate of around 1% per second. I tried to drain the batteries completely. When I tried to fly the quad once more the same thing happened. Any help on this matter would be greatly appreciated.