Electrical questions

[tlbranth]

2020 Jayco 24ft Octane toy hauler. This thing came with two batteries. They're in a dedicated hole in the side of the trailer. The batteries are not connected. They each have a black(-) and red(+) wire which disappear into the bowels of the trailer. The black wires each go to a separate block bolted to the side of the enclosure and then disappear as described.
My first question is: why are the 2 batteries not connected?
Second question is: where do the wires go i.e. what are they connected to?
Third question: I want to install disconnect switches for the batteries and install battery tender connectors to each. I thought knife switches in place of the 2 terminal blocks would be a way to go. Any thoughts?
I should say that I've written to Jayco in an attempt to get a wiring diagram of this trailer. Don't you just love being ignored? Is there such a thing or do they just make it up as they go?
Any help appreciated.
Oops. Red wires go to the blocks. I would change that to black.

[GHen]

Do you have (a worthless) factory disconnect switch? The wires may connect there.

Here is the type of switch I added as a full battery disconnect.

https://www.amazon.com/dp/B07413JWLD...414877R0CEZNRK


If the link does not work, just search Amazon for a “marine battery switch”

Just remember to have the batteries connected when traveling, they power your emergency brakes if you have major problem.

[Grumpy]

Did you write or email using the contact form for customer service?

https://www.jayco.com/site/contact/service/

The batteries are not connected because someone did it wrong.

They should be connected this way with both reds together and all the blacks together.

The red blocks are auto-reset circuit breakers

[tlbranth]

That's what I thought Grumpy. But I have 2 pairs disappearing through the back of the cubby hole. No idea why.
Yes I just filled out that form. Maybe with the serial number they'll respond.

[tlbranth]

Ghen - no factory disconnect. I looked at the switch you pointed out. Works OK eh?

[JimD]

I use these disconnects on my battery pair. Did have the old knife version on my old camper.