George, on our 2000 mile trip I noticed that one of the battery cases were scuffing against the gelcoat of the trailer, resulting in a white powder. I think that as I have the 6 volt batteries, they are higher than yours and will not go back any further. I may consider the 27 series route. What capacity did you get your's in and are you planning to install a switch to isolate any of the batteries?
I used dealer's stock Interstate 27M batteries Interstate
with 180 min. Reserve Capacity at 25A. Interstate is not using Amp Hours capacity in their specifications and without knowing the Peukert number for this battery it is impossible to calculate Amp Hours from Reserve Capacity. Most likely it is 105ah.
Dealer connected all batteries in parallel with gauge #2 cables penetrating the chassis near the back of the PPS converter. I replaced the PPS converter with 80A Xantrex Xantrex
and connected its
description using original Xantrex' brackets. Xantrex fit perfectly into the PPS 7300 inverter box.
See attached installation diagram. With the exception of Jacks remote control and control panel everything is installed and works as designed. 3 AC power transfers between shore power, generator
and inverter are simple.
I installed the Onan generator
and am very please with it. Sound measurements are:
In, closed door, at idle 56dBA
23' outside, at idle 57dBA
23' outside, with air-conditioning running 61dBA
It is not as quiet as the Honda 3000 Honda3000_measurement
but LPG and pushbutton conveniences are worthwhile to bear this extra noise.