I also wanted to shove my battery in the back. I have zero gauge amplifier cable already running to the back there, all I wanted to use was a curcit breaker next to the battery and ground it somewhere gloss to the frame rail. I have distribution post to connect the original battery cables up front to the new power cables running back. I have these

48V DC Max M8 Battery Power Distribution Terminal Busbar Stud Junction Post Set 816165028205 | eBay
Find many great new & used options and get the best deals for 48V DC Max M8 Battery Power Distribution Terminal Busbar Stud Junction Post Set at the best online prices at eBay! Free shipping for many products!
www.ebay.com

Harmony Audio HA-CB250 Car / Marine Stereo Manual Reset 250 Amp Circuit Breaker 709100412927 | eBay
Find many great new & used options and get the best deals for Harmony Audio HA-CB250 Car / Marine Stereo Manual Reset 250 Amp Circuit Breaker at the best online prices at eBay! Free shipping for many products!
www.ebay.com