What gauge wire from batteries to inverter

opnspaces wrote:
As far as the distance, the horizontal run is not that far, more like 3 feet if I went straight from the batteries through the front wall of the trailer.

SoundGuy wrote:
I wouldn't do that - if the inverter is mounted in the front pass through storage compartment go down through the floor, along the underside of the A-frame, and up to the batteries.

brulaz wrote:
Oh I dunno. That's what I did. :) As straight a path to the batteries as possible, carefully caulked.

But my front wall consists of a cap + space + interior wall.

The OP's 2005 Jayco Jay Flight 27BH is conventional build, doesn't have a front cap, as is no different in construction than my own 2014 Coachmen Freedom Express in which I installed a 1000 watt PSW inverter in the front pass through storage compartment and ran the cables from the inverter down through the floor to the battery.



This upcoming season I have to replace my now failed 10 yr old Interstate battery, most likely with a single G31 as we normally only "dry camp" those few times each season we lose shore power. It'll fit in the same battery box I have mounted on the tongue but if I go for the additional cost of an AGM I'm considering parking it in the pass through storage compartment just below the inverter, in which case the cable run from the inverter to the battery will be shortened from 6' to ~ 15". Thinking out loud I might even bring the battery's negative & positive posts out to lugs mounted next to the street side hatch door so I can readily load support that G31 & inverter with the truck those times I may want to power a heavy draw appliance such as my toaster. For those of us who do this only occasionally load support works just fine and is a lot less costly than investing in a set of dual or quad batteries.