I recently bought my first pixhawk and I'm having a power problem. I fried two sets of wires trying to power it from the power module (instant smoke). The right-most ground wire (pin 6) somehow shorts. It still starts up fine when powered from micro USB. The battery is good at 12 V, outputs from the battery power module look fine (5.4, 5.4, -, -, 0, 0), and the grounds between module and battery are good. Today I was able to power up the PixHawk using a power supply to the pixhawk power pins 6/5 & 2/1. It started up with no issues (pulling 0.2 A). The pixhawk is rated up to 5.7 V. Any suggestions as to why I'm having issues from the battery power module?