Master cutoff switch

[rponfick]

Anyone installed, or thinking of installing a master battery switch?

If so, where are you thinking? I'm doing bench seats, and not sure of rear bulkhead area will be accessible .

Comments, Ralph.

[Stillwater35]

I have one sitting in its package on the floor. I'm just thinking that once I have the seat, I'll make it work somewhere. If the seat is 2 pieces, I could make the back folding or removable maybe. But yes, I'll be doing one.

[Pat Landymore]

I’m going to use a light aircraft style master contactor (looks like a Ford starter solenoid but has a lower amp continuous duty coil) and mount it right by the battery. Then it will just require a toggle switch running low current, possibly hidden, to actuate it. Should be tidy.

[rponfick]

Pat, I wish I knew what you just said.
Thanks, Ralph

[Pat Landymore]

Hi Ralph:
Like this, but there are less expensive sources.
https://www.aircraftsupply.com/X61-0028.html
Best Regards

[Pat Landymore]

This is the one I’ve ordered, the 12 volt version.
https://m.aircraftspruce.com/catalog/elpages/masterrelay.php
Pat

[nbjeeptj]

On my 55 Chevy I used a master disconnect that is controlled by a key fob. It worked great since I had the battery in the trunk behind a panel that is hard to get to. Prob will go the same way on this build. I will try to find the info on it this weekend.

[nbjeeptj]

this was the one I used.

https://www.summitracing.com/parts/sms-t3-12v/overview/

[rponfick]

Jeep, does product you used just turn off connection to battery when drainage is detected, or can it be used as an anytime total disconnect switch? I am thinking of just disconnect switch, and not worried about trickle drain.
And, where is a good spot to mount in pickup.?

Thanks, Ralph

[nbjeeptj]

It mounts on battery post. I will get a photo of mine on the 55 this weekend. It comes with 2 key fob's that you can push a button on the remote and cut it off.

[AC Bill]

I wired a battery master switch, using the negative side. It's there for safety while working on the vehicle, an accident, but also as an anti-theft deterrent.

I also added a "keep-alive: wire, with a low amp fuse, to prevent the computer from losing memory. The fuse would pop from any higher amperage draw, if there was a major short, or someone tried to start the vehicle.

You probably want the switch mounted in a spot that you could still reach it easily, in an emergency.

[KenWilkinson]

l'm looking at something like this -> https://www.amazon.com/dp/B00445KFZ2/?coliid=IH26R15SOGAGH&colid=IZARI288THN&psc=0&ref_=lv_ov_lig_dp_it

Mechanical, one moving part. No electronics.

[nbjeeptj]

Here is how the one I used in the 55 hooked to the battery. The kit comes with a lot of terminal options.

98832

[KenWilkinson]

Here is how the one I used in the 55 hooked to the battery. The kit comes with a lot of terminal options.

98832

Can't work on the 35. The battery is not that accessible. Under the bed, behind the cab. Unless you are thinking somewhere else.

[AC Bill]

This style switch is very popular. You can remove the key for extra security if needed. You could mount it under the dash, behind the seat, engine compartment, etc.

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcT3LO5bS217OapvhBJfZHa1I8yoVt5NC mRMHiWLcJbEz1DS7zFPtg

If quick access isn't a chief concern, this battery mounted one would be the simple one to install.

https://www.amazon.ca/WirthCo-20148-Knife-Switch-Battery/dp/B000CQDRP2/ref=asc_df_B000CQDRP2/?tag=googleshopc0c-20&linkCode=df0&hvadid=293007400528&hvpos=1o8&hvnetw=g&hvrand=1412627323460267849&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9001615&hvtargid=pla-493367347148&psc=1

[Davew70]

Can't work on the 35. The battery is not that accessible. Under the bed, behind the cab. Unless you are thinking somewhere else.

Thanks for the info.