Been starting to think about wiring on my trailer again lately.. Hadn't though about it much but how much draw would the back battery really need..?? I was expecting to just use the 12v point on the 7 pin connector to keep the battery up and going.. Not sure what the 7 pin aux puts out, but I have popped the 30amp fuse on a compressor with it, so I'm guessing it's good for at least that much..
If a battery were down to it's last 25% and it was put on a charging source, what kind of draw would it be trying to get to recharge..??