mattherrington wrote:
We just took our first long trip in my 16ft TT after I installed a new (4)6-volt 460AH system in lieu of the single group 27 marine battery.
To my surprise though I didn't get the charge I thought I would when we were out on the road.
You're expecting far too much from a vehicle charging system designed to maintain that vehicle's starting battery. If you're really serious about this then the solution is to invest in a DC > DC charger ... you'd do well to read the discussion linked to by
theoldwizard1.