I have a friend who has an old quad that still flies well, but a bad battery caused a crash. I’m trying to fix it for him but I cannot get the controller to register any voltage. The quad has a 3DR Power Module and correctly outputs voltage and current. The Voltage with a full battery is about 1.6V (4 cell battery), while the current output (with sensor connected to the FC) shows increasing voltage with increasing current. In CONFIG, I do not know which analog inputs to assign to the voltage and current functions. I thought it was inputs 4 & 3 respectively, but those do not seem to work. Does anyone know what they should be?