Battery relocated to trunk, inertia switch?

67Dart273 said
OK Dion here is what I "believe"

The Parallax seems to be just what you said.......pulse on, pulse off. The Painless/ Summit versions are a bit of a "dirty trick" They are using a rather STANDARD (LOL if there is one) type of continuous duty solenoid and they are ELECTRICALLY latching it on by feeding power back from "it's own contacts"

I think the Painless kit uses a Cole Hersee 24200 relay. I though I had a sheet on it and how it worked, but can't seem to find it now.

Cole Hersee 24200 SPST Latching Solenoid 12V 110A Continuous Duty

67Dart273 said
If that Parralax devices is as good as claimed it is one hell of a setup

http://www.bestconverter.com/assets/images/Parallax/BR100/BR100install.pdf

This page claims they are 100A continuous, 300A surge for 30 sec

BR 100 Series Accessory – Parallax Power Supply

Same outfit/ supplier you posted has some heavier ones, too

Battery Disconnect Relays Archives - RV Parts Express - Specialty RV Parts Retailer

There are actually better ones.

The Intellitec 01-00055-000 is actually rated at 500 amps for 30 seconds. But the circuit is reversed to open or close it rather than having two separate circuits.

Intellitec 01-00055-000 Relay, 0100055000

And if you really wanted to go all out, I would use this one:

300 Amp Disconnect | Buy a 300 Amp Battery Disconnect Switch for Street Rods from Watson's StreetWorks