Hey folks. I have the DX2S DSM 2-Ch Transmitter w/Receiver and for some reason it is not accurately displaying the battery voltage. I am using two 2s lipos (total 4s). When I turn on the dx2s, it shows RX Batt: 5.8V with both batteries fully charged. Correct me if I'm wrong but a fully charged 2s lipo is 4.2V and since I am using two, that would make it 8.4V. Shouldn't I be seeing RX Batt: 8.4V? Please help!