Hi, These quadcopters are driving me crazy and I am just getting started. I ordered a charging harness. It has a usb end on it. Because I could not find one with 4mm banana plugs on it. Now when I put on four batteries in parallel. And plug it into my computer. How can it charge all four batteries when I can't adjust the amps that they should be charging at? Also, I have a good charger with 4mm banana plugs on it. But I can't find an adapter, so that I can plug the usb end. Into the 4mm banana plug holes. Can some one please help me. thank you. I have a x5c-1 quadcopter.