This weekend our power winch motor failed and it is the old "screw" interface model that has since been redesigned so it is a pricey fix. I'm fine with using a power drill as that has been the back up since we bought it. Having used it several times already. My question is why do I need a battery at all? I know I need it for the trailer break away switch but Ohio law doesn't require one based on the weight of my trailer and it was missing the cable when I got it so hasn't been used anyway. I'm not looking to camp without shore power as it is a requirement to keep DW happy. Am I missing something?