Battery disconnect switch help - Team Camaro Tech
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post #1 of 20 (permalink) Old Jul 4th, 18, 10:12 PM Thread Starter
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Tim
 
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Battery disconnect switch help

Hi

I been reading about and have decide that a batt cut off switch is something I would like to incorporate
into my car. I have searched the forum but keep getting threads about moving the battery to the trunk and what not.
I have attached a pic of one I think is somewhat non-invasive,,,anyone know about this type? or have any recommendations?
Thanks
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post #2 of 20 (permalink) Old Jul 5th, 18, 02:56 AM
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Re: Battery disconnect switch help

I have seen those along with the knife switch.
I just never understood the need for one unless you have battery draining problem or being on a race track.
car companies don't install them on new cars
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post #3 of 20 (permalink) Old Jul 5th, 18, 03:13 AM
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Re: Battery disconnect switch help

I think you can make a decent case for them in any of our cars with original wiring. Are the ones like Tim showed built well enough to not just become another problem point?
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post #4 of 20 (permalink) Old Jul 5th, 18, 03:17 AM
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Re: Battery disconnect switch help

Quote:
Originally Posted by 3d cad View Post
I think you can make a decent case for them in any of our cars with original wiring. Are the ones like Tim showed built well enough to not just become another problem point?
The one Tim shows works very well and is not expensive.
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post #5 of 20 (permalink) Old Jul 5th, 18, 03:36 AM
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Re: Battery disconnect switch help

Have one on my car. Never a problem, very easy to use, and inexpensive.

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post #6 of 20 (permalink) Old Jul 5th, 18, 04:09 AM
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Re: Battery disconnect switch help

These devices have been around for a very long time and can be found at all auto parts stores at a reasonable price. There are variants such as the mentioned knife style, or the style in your photo where you turn the ring to connect/disconnect.

The reason you see so many threads in a search here at TC related to battery relocation is because many racing organizations and track rules require a cut-off if and or the battery has been relocated for safety or for weight distribution balancing. However these types of interruption switches were oh-so-common in the 70's and 80's, often being a barrel style lock cylinder that folks drilled holes in fenders to mount and possibly displayed with pride.

There are also more modern units that have remote key-fob style disconnect switches, and or have a starter limiting switch that prevent an engine start but leave the other electronics usable. Most of these modern offerings are covert and mount directly to the battery post. I myself use one called the Battery Programmable Brain. Once sold under the brand and marketing name of just "Battery Brain" but the original inventor did not like the course the company he sold the rights to was headed and eventually bought the rights back and re-branded the device BPB. The device comes in remote and wired cut off options and they also offer a device that monitor any hungry electronics such as power amps and radios and can shut them off if the battery gets too low.

My take is that with any of these switches it is best practice to interrupt the POS + leg of the battery circuit as opposed to the installation example in the photo you posted where the NEG - leg is interrupted. I just think it is far too easy to make a body connection to NEG if you have disconnected to work in the engine bay close to the battery area.

There are also alarm system and vehicle locator services such as lojack classic that can kill a battery remotely, some use phone apps as well as fobs.

Battery Programmable Brain is available at Amazon, Summit Racing, many national Auto Parts stores, and direct on-line at: https://www.batterypb.com/product

LoJack Classic - TC members used to get a discount: https://www.lojack.com/products/stol...very-classics/

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post #7 of 20 (permalink) Old Jul 5th, 18, 04:47 AM Thread Starter
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Re: Battery disconnect switch help

Thanks for the info Brian!
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post #8 of 20 (permalink) Old Jul 5th, 18, 06:37 AM
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Re: Battery disconnect switch help

Quote:
Originally Posted by flat tire View Post
I have seen those along with the knife switch.
I just never understood the need for one unless you have battery draining problem or being on a race track.
car companies don't install them on new cars

Almost anytime you work on a car (welding, electrical additions alterations etc..)Long term storage… the factory manual old car or new, recommends disconnecting the battery.
Turning a disconnect switch makes that easy.
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post #9 of 20 (permalink) Old Jul 5th, 18, 07:10 AM
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Re: Battery disconnect switch help

This looks like the one in Tim's pic :

https://www.summitracing.com/parts/oes-25281/overview/

I think I'll get one.
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post #10 of 20 (permalink) Old Jul 5th, 18, 07:15 AM
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Re: Battery disconnect switch help

Mine is installed on the positive (+) side. Yes it's much easier to give it a full turn to the left instead of disconnecting the terminal when you need to do some work.
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post #11 of 20 (permalink) Old Jul 5th, 18, 09:55 AM Thread Starter
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Re: Battery disconnect switch help

Quote:
Originally Posted by NashvilleCat View Post
This looks like the one in Tim's pic :

https://www.summitracing.com/parts/oes-25281/overview/

I think I'll get one.
Thanks for the link! The Chevelle needs one too

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post #12 of 20 (permalink) Old Jul 5th, 18, 10:33 AM
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I have seen them at car shows. They are accepted even during points based judging. When a car is judged they want the hood, trunk, and drivers door opened. All three of these parts may or may not have a light hooked to them. This helps insure you don't have a dead battery at the end of the show. I don't have one, but it is definitely easier to turn a knob than remove a factory spring battery cable.

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post #13 of 20 (permalink) Old Jul 5th, 18, 11:29 AM
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Re: Battery disconnect switch help

Quote:
Originally Posted by ilikeike View Post
Almost anytime you work on a car (welding, electrical additions alterations etc..)Long term storage… the factory manual old car or new, recommends disconnecting the battery.
Turning a disconnect switch makes that easy.
a 1/2" wrench is easy
as a said if it were really important GM would have installed them then and now
personally I have no need for one
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post #14 of 20 (permalink) Old Jul 5th, 18, 11:41 AM
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Re: Battery disconnect switch help

I have the Battery Brain on ALL my classics. Cheap insurance against 50-60 year old wiring.

Ed
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post #15 of 20 (permalink) Old Jul 6th, 18, 01:47 PM
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Re: Battery disconnect switch help

I switched to this one because of problems that I had with the type you are looking at (poor electrical contact after awhile). This one is more substantial and can be mounted in an inconspicuous place.

https://www.wirthco.com/20387.html

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