ITGEEK, so if I hook my sonar (Model 899) up to a separate battery, since it's not being charged throughout the day by the main motor, I'm guessing that the draw is so low, that it will last all day? And, I would just charge the sonar's battery after a day of fishing like my trolling motor batteries?
There's no more room in my bilge area for another battery, but I think I have room under my console to put a battery.