I figured that as well, that they should be the same. The voltage at the battery is the same as it is at the BCC(12.07). I think I may have found the problem. There is a little black box mounted to the frame that the power wire from the converter is attached to on one side and then goes to the input side of the BCC. I have 13.68 volts going in, but not coming out the other side. The other side has the same voltage as the battery. I believe the little black box is a circuit breaker of some type, that may not be functioning correctly. Won't have a chance to do some more testing until later.