Battery dis-connect question

[brock Hollywood]

Inside or outside of vehicle? outside makes more sense to me.

[bill78]

On my car I had both.

Bill

[bill78]

Let me clarify this a little bit. The one on the inside was within reach for the driver. The one on the outside was on the rear of the car for safety workers. If you run an alternator make sure the engine can't still run from the alternator with the battery disconnected.

Bill

[manta22]

BH;

On my car that I'm building I have an outside switch (Moroso) that disconnects the battery. Inside I have a toggle switch that controls two big relays; this is my "master shutoff" for the entire electrical system. In the photo it is just to the right of the round button (starter). I have a red cover on it that can be snapped down with a gloved hand in an emergency.

Regards, Neil  Tucson, AZ

[Dr Goggles]

Inside or outside of vehicle? outside makes more sense to me.

don't forget this ain't drag racing and sometimes it can take a while for the emergency crew to reach you...

[brock Hollywood]

thanks for the input. If I only have one in the cockpit and clearly mark it, will that pass tech?

[manta22]

Regardless of whether it passes tech or not, ask yourself "Can rescue workers find it if you are upside down?"

Regards, Neil  Tucson, AZ

[dw230]

The idea behind the master switch is when rescue workers roll up on you and hear pumps running they don't know if they are fuel or water pumps. All electricity should be off so that the the first response people can do their job, save you from harm.

There was a car a few years ago that burst into flames when it was rolled upright. The switch was off but later discovered that it did not do the proper job of shutting down the electrical circuits.

DW

[brock Hollywood]

ok, im installing one on the outside as well. thanks for the info

[jimmy six]

I believe there are decals at the inspection trailer that have a place you can write where your disconnect is located.  My battery is in front of the engine in my roadster and the disconnect handle is on the left hood panel. There is a note on the cockpit area denoting where it is located. IMO those driving enclosed vehicles with a disconnect inside should have a note on each side window denoting it's location and arrows somewhere inside poiting to it.

Most drag race vehicles have them in the rear for specific reasons. Since we have so many different verities of vehicles that probably would not work. I would not want to put 20 feet of cable to place the disconnect on the rear of my car.

[Nexxussian]

I've been thinking about mounting the battery kill switch by the batteries (fwd of the engine) and running a Morse cable (push/pull cable for boat steering) to the back of the car.


I figured on setting it up as push to turn off.

The idea of tying in a remote to the cockpit hadn't occured to me, thank you all for bringing it up.

At the moment a reverse pinball launcher arangement (where you are pushing against the spring) that could contact the arm on the switch itself to turn it off as you push.

Just thought of it though, so maybe I can do better after some Cogitation.