Before shipping I need to know your year and model of your trailer to make sure I send the correct screws and parts.
I will need to know if you have an inverter and what size.
If you are not sure, just take a couple of pics and send them to BoonDoctor101@gmail.com
I can combine shipping if you get the batteries at the same time, typically I have the Battle Born batteries in stock.
The three battery kit is $30 more, please call me if you want something a little different.