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Battery cut off switch questions
#2542905
08/29/18 08:51 AM
08/29/18 08:51 AM
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Joined: Dec 2003
Posts: 5,647
Port Huron, Michigan
MI_Custumz
OP
master
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OP
master
Joined: Dec 2003
Posts: 5,647
Port Huron, Michigan
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I had a battery cut off with the thumb wheel you unscrew on my car. It was causing intermittent starting issues. I removed it and now no issues with starting. I would like a switch on it since it's not driven every day and want to make sure it's not drawing power from the battery while sitting and also so if I'm working on something, doors open, or at a show and want to make sure it's off I can without unhooking the negative cable. I was going to get one that has the battery cable that goes from the battery to the switch and switch to the ground. Not 100% sure which one I want yet (suggestions welcome), but would the small ground wire on the negative cable that goes to the inner fender be installed at the battery, first lug on the switch, second lug on the switch, or doesn't it matter?
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Re: Battery cut off switch questions
[Re: MI_Custumz]
#2542946
08/29/18 11:08 AM
08/29/18 11:08 AM
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Joined: Jun 2005
Posts: 5,102
Western Md.
skicker
"The Champ"
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"The Champ"
Joined: Jun 2005
Posts: 5,102
Western Md.
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I used one very similar to this... https://www.summitracing.com/parts/prf-30204This one is not identical to what I have...for some reason I can no longer find the one I used... In the end it simply allows for an interior or under dash mounted toggle switch that disconnects all power... Mines been on for more than 5 years with zero issues...
...FAFO...
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Re: Battery cut off switch questions
[Re: skicker]
#2543022
08/29/18 02:02 PM
08/29/18 02:02 PM
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Joined: Jan 2006
Posts: 360
Ohio
shorthorse
enthusiast
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enthusiast
Joined: Jan 2006
Posts: 360
Ohio
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I used one very similar to this... https://www.summitracing.com/parts/prf-30204This one is not identical to what I have...for some reason I can no longer find the one I used... In the end it simply allows for an interior or under dash mounted toggle switch that disconnects all power... Mines been on for more than 5 years with zero issues... It looks like you must shut it off whenever the car is not in use. From the instructions it looks like the solenoid is activated via the switch (switched ground) so if you forget to turn it off when parked the solenoid will still put a drain the on the battery.
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Re: Battery cut off switch questions
[Re: MI_Custumz]
#2543035
08/29/18 02:19 PM
08/29/18 02:19 PM
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Joined: Jan 2006
Posts: 360
Ohio
shorthorse
enthusiast
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enthusiast
Joined: Jan 2006
Posts: 360
Ohio
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I had a battery cut off with the thumb wheel you unscrew on my car. It was causing intermittent starting issues. I removed it and now no issues with starting. I would like a switch on it since it's not driven every day and want to make sure it's not drawing power from the battery while sitting and also so if I'm working on something, doors open, or at a show and want to make sure it's off I can without unhooking the negative cable. I was going to get one that has the battery cable that goes from the battery to the switch and switch to the ground. Not 100% sure which one I want yet (suggestions welcome), but would the small ground wire on the negative cable that goes to the inner fender be installed at the battery, first lug on the switch, second lug on the switch, or doesn't it matter? Positive or Negative, you must completely isolate the battery (+ or -) from the car. Whatever you use must be connected directly to the battery cable with the other side going to it original destination. Not sure what you mean by a "small" wire but keep the gauges the same as the original battery cable. Most important is that your switch be able to handle the load. Don't fall for those cheap 20 amp cutoff switches that are available and look exactly like the real high current switches.
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Re: Battery cut off switch questions
[Re: MI_Custumz]
#2543206
08/29/18 08:00 PM
08/29/18 08:00 PM
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Joined: Feb 2003
Posts: 8,671
Andrewh
master
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master
Joined: Feb 2003
Posts: 8,671
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