Since I’m getting back into all the battery and grounding issues on my coach was also wanting to install a battery cut off switch for my storage of it. Any suggestions on how and where. Seemed like I remember up by the isolator, just don’t recall which cable I interrupt there?

Thanks,
Tom
76 Eleganza 2
Kansas City, Mo

Looks good. My arrangement of relay’s and solenoids looks a bit different but I can see how its put together. Like I’ve said before, not super whippy with electrical stuff. I do have a question on the placement of the cutoff switches. I like this arrangement from the aspect of shutting everything down from one spot, especially if there was a emergency. I’ve read some guys want to have these nearest to the battery, why would that be? My house battery is back by the generator.

Thanks,
TG

I don't believe you should EVER run the STARTER current through a cutoff switch. I have never seen a switch capable of the currents (300+ Amps) that is required by a starter.

Primary path to starter should be through a starter solenoid relay connected directly to the positive terminal of the battery. The solenoid IS capable of
passing the hundreds of Amps that will be required for starting.

The current to the relay that actuates the starter solenoid SHOULD be supplied via the cutoff switch.

I believe Jim Bounds has schematics of the best way to wire your starter system.

D C "Mac" Macdonald

Tom
I solved that problem several years back by running a wire from my house battery through the light line that plugs into the motorhome and the toad.
I know that puts the toad battery in parallel while you are towing but that hasn’t been a problem.
When you unhook and pull the cable the toad is fully charged.


Emery Stora