I would have to look at it all before any suggestion other than get some type of quick connect that can be added where the negative or positive post can be disconnected after using the boat. The next time you want to use the boat reconnect the battery connection. I do this with my bass boat when it is not in use because if I don't the auto bilge pump will kick in after rain events and or I will leave something turned on that over time will reduce the battery charge. It's easy to do and only takes a min to reconnect it prior to hooking up the boat and trailer.

Do not judge me by the politicians in my City, State or Federal Government.


Tracy