battery disconnect switch - Team Camaro Tech
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post #1 of 7 (permalink) Old Oct 20th, 09, 04:42 PM Thread Starter
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Ron
 
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battery disconnect switch

Just bought a battery tender. Can you hook the switch up to the red wire coming off the junction box behind the battery that goes to the horn relay. this wire powers the car except for the starter so it should work or will there still be potential for draw down during storage. Trying to find an easy location to install it and not have to open hood. If I have to connect to battery does it have to be positive cable? Thanks.
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post #2 of 7 (permalink) Old Oct 20th, 09, 05:30 PM
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Re: battery disconnect switch

Junction block is a good place. I would remove the negative cable rather than the positive cable.

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post #3 of 7 (permalink) Old Oct 20th, 09, 05:39 PM Thread Starter
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Re: battery disconnect switch

So you're saying I could hook it to the red wire coming off the junction block?
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post #4 of 7 (permalink) Old Oct 20th, 09, 07:13 PM
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Re: battery disconnect switch

I think I might've misread your post. Are you talking about hooking up the disconnect or the battery tender? I've never really seen a stock car disconnect that you could reach without opening the hood.

Most Tenders come with a little pigtail that you leave connected to the battery. They're supposed to be two feet long which is usually long enough that you should be able to run it through the radiator support and out through the grill, or just leave it hanging/ziptied to the radiator support so you can access it from underneath. I have one on my motorcycle that I leave bundled behind the side cover. If your Tender didn't come with one, they sell them for around $7.

If you don't need an NHRA approved switch, you can use one of those knob-style disconnects on your negative post and connect the pigtail to the post bolt. Then when you unscrew the knob to open circuit your electrical system, you just plug the Battery Tender into the pigtail underneath the radiator support.

To give yourself more hook-up points on the battery, you can get those post extenders at most auto parts stores. They replace the clamp bolt with a standoff with another bolt in the end and they have them for both side post and top post setups.








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post #5 of 7 (permalink) Old Oct 21st, 09, 05:58 AM Thread Starter
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Re: battery disconnect switch

I think I confused you; I bought a Flaming River Switch Battery Disconnect from Summit (FR1002), tried to paste a picture but won't work. Basically it's a switch that connects in series to the battery cable, can turn it on and off. This car is a daily driver, don't race it and doesn't need to be NHRA approved, just wanted something to turn off battery when not using car so my battery doesn't drain and not have to open hood and remove cable all the time. thought I could attach it to front of radiator support and reach under to turn it on & off (has removable key), figured the red wire from junction block would be easier to connect thru but not sure if it's going to do what I want it to. Hope this explains my situation better.
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post #6 of 7 (permalink) Old Oct 21st, 09, 06:14 AM
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Re: battery disconnect switch

Yes, you could install the cutoff switch on the red wire from battery to horn relay as it would kill power to the car if the alt BAT terminal is not hardwired to the battery clamp/post.

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post #7 of 7 (permalink) Old Oct 21st, 09, 07:43 AM Thread Starter
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Re: battery disconnect switch

cool, thanks. Nope alt bat. wire comes from red wire through junction box/horn relay,etc.
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