If you’re wanting to power a fridge and other accessories in the back of your Ram, then you should check out Auxiliary Battery Box setup.
Kit includes Custom Battery Box and all necessary bolts.
Battery Box is mounted in front of the rear LHS tail light, under the quarter panel.
A Professional Installation is recommended. We do not currently supply the whole kit with cables, batteries and charger, as this will need to be supplied locally.
Dimension of the battery to fit are:
L: 12.99 (330) W: 6.81 (173) H: 8.35 (212) HT: 8.66 (220)
Weight of the Battery Box: ~2kg
Download the Instructions procedure here.