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can the second OEM battery be separated?

5406 Views 12 Replies 6 Participants Last post by  Radioman
has anyone with the two battery setup from ford looked at how difficult it would be to install a cutoff relay between them, in order to isolate the second battery as a true "house battery"? is there room in the compartment?

further, could the wiring for the upfitter switches and customer convenience circuits (and perhaps some of the van's other "house"-like circuits) be moved onto that battery? perhaps the bus they're connected to could be physically severed? this would almost certainly be a lot harder than separating the batteries and running the "house" battery to a new panel.

think of this as idle brainstorming -- it just seems a shame (for my uses) to "waste" that battery if i install a separate house system, so i'm leaning strongly toward not ordering the dual battery option.

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I'll give your questions a shot.

You want the dual batteries as you get the 220 amp alternator.
Aren't they two separate options?
Could be. I was thinking that came as a package.
For '15 at least in the gasoline engine models both were separate options. The diesel for sure included the dual AGM batteries, can't remember if the HD alternator was included as well.
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