Hi. This is my first post. I have a Victron Buck boost 50 amp and the buck boost is not turning on. I went into the TSConfig software and the input voltage is at 0.7 volts. I checked my aux battery and the battery has 12.8 volts. I am running a 4 gauge positive and negative wire (8feet long )from my starter battery to the buck boost. Please let me know what you think and what I can do. Thanks.