I am looking into buying a used TT. The battery was stolen from the unit. I need to tow it 125 miles home if I buy it. Do I need a battery hooked up on the trailer. I am new to towing...
YES - if it has installed Electric brakes. The battery on the TT supplies power to the electric brakes in case of trailer break away when being towed. Required by DOT...
Any 12VDC battery will work for this to get you home. Even a Sears riding mower battery..
All of the 12VDC power for the trailer safety lights including electric brakes will be provided by your truck 7-way connection.