JoeChiOhki wrote:
These seem to be primarily about charging isolation vs battery selection for usage.
On the KIT, I just wired both batteries together in parallel and hooked the +/- leads to opposite ends of the battery bundle to even their usage out, but I noticed even with that, the lead battery still took more wear than the trailing battery (I have two in the main house bank).
The new rig, I'm setting it up so that the batteries are only conjoined when the selector makes them so, allowing for me to cut between battery 1, battery 2 or both batteries at the same time for powering the camper when off shore power.
I could make use of one of these eatons though for controlling the charging process to the batteries coming from the trucks charge plug and 3-stage converter.
I think you are trying to complicate simple issue.
When you have house battery bank, you use it together. For decades I am using cars and boat batteries in my RVs, so almost all the time they are different age, different capacity.
What I observe is that when used, or charged together -those differences are not changing anything. They might if you leave different age batteries connected for long storage, but I never do that.
In my Sprinter conversion I have 1 house battery in the rear, close to inverter and electrical panel, when 2nd battery is under the hood, with almost 20' of cable. They are both wired together just fine and only for storage I pull battery clamps.
So what do you expect from separation switch between house batteries?
It will not give you more capacity for sure.
My 2002 Lance had 1 of those charging separators installed at the factory. Sure surprised me when I discover it after couple years of use. But Lance seems to be unique with upgraded charging cables.
