Best battery Disconnect

[Nagrompj]

Blue sea. Coast Gaurd approved.

[66joej]

Back in the day we always removed/disconnected the ground lead. I see most posts involve disconnecting the positive lead. Am I missing something? This from an Old Mechanic (60years in the trade).

[chuckster57]

And I have always disconnected the positive (40+ yrs of wrenching). Can't give a reason for one being better than the other, my father was an electrical engineer and that's the way he taught me to do it as a kid when I helped him work on the family wagon.

[mosquitoman]

I used similar switch to others but I switch the ground (my choice) but I also have a quick connect set up so my batteries are still plugged into a proper charger so they are ready to go when we are.

[66joej]

Originally Posted by chuckster57

And I have always disconnected the positive (40+ yrs of wrenching). Can't give a reason for one being better than the other, my father was an electrical engineer and that's the way he taught me to do it as a kid when I helped him work on the family wagon.

Hi
I guess it is a personal preference. When I was serving my apprenticeship back in the 50s inner fenders on vehicles were made of metal instead of plastic. All you had to do was touch that wrench to the metal when loosening the positive clamp and you learn to always take off the negative cable first. Just something I learned the hard way.
Joe

[itat]

I have this Blue Sea Model 6006 ON-OFF switch.

https://www.amazon.com/Blue-Sea-Syst...connect+switch

[itat]

The reason for disconnecting the positive side of the battery is that it may be possible to have something on the vehicle connect to ground and allow current to flow if the positive is still connected. Disconnect the positive side and there's no place for current to originate from if you get an inadvertent ground.

[66joej]

Originally Posted by itat

The reason for disconnecting the positive side of the battery is that it may be possible to have something on the vehicle connect to ground and allow current to flow if the positive is still connected. Disconnect the positive side and there's no place for current to originate from if you get an inadvertent ground.

So I believe you are saying that you don't need a battery to make a circuit. I thought that by removing/disconnecting the negative cable it would stop any flow of power because the current has to flow through the battery to make a circuit. I stand to be corrected. Just my personal experience.