C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Battery Kill Switch for C3 Side Post

Thread Tools
 
Search this Thread
 
Old Jul 19, 2021 | 10:36 AM
  #1  
Winger76's Avatar
Winger76
Thread Starter
Intermediate
 
Joined: Jun 2021
Posts: 41
Likes: 5
Default Battery Kill Switch for C3 Side Post

Anyone have a suggestion for a Battery Kill Switch on an Optima Battery with side posts?
Reply
Old Jul 19, 2021 | 11:02 AM
  #2  
gkull's Avatar
gkull
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Default

Originally Posted by Winger76
Anyone have a suggestion for a Battery Kill Switch on an Optima Battery with side posts?

I installed this and when I leave my Vette I take the key and then it would be very difficult to take. I cut the positive cable and soldered on lug ends. No battery drain for extended storage either.

Blue Sea Systems Battery Switch, Mini On/Off with Locking Key-6004 - The Home Depot

Last edited by gkull; Jul 19, 2021 at 11:06 AM.
Reply
Old Jul 19, 2021 | 11:04 AM
  #3  
Lamouree351's Avatar
Lamouree351
Advanced
All Eyes On Me
Liked
 
Joined: Jun 2019
Posts: 84
Likes: 40
From: Pittsburgh, PA
Default

I have been using one like this on mine for a couple years with no issues.

Amazon Amazon

Last edited by Lamouree351; Jul 19, 2021 at 11:05 AM.
Reply
Old Jul 19, 2021 | 11:15 AM
  #4  
Winger76's Avatar
Winger76
Thread Starter
Intermediate
 
Joined: Jun 2021
Posts: 41
Likes: 5
Default

That seems involved? Was looking at the direct battery mount with the **** but clearance seems to be an issue. Really just need it to avoid a short/fire. Our garage is right underneath our bedroom...horrible place to have a fire start. Is it simple to install? any other suggestions appreciated? Thank you all.
Reply
Old Jul 20, 2021 | 06:41 AM
  #5  
riverracer au's Avatar
riverracer au
Melting Slicks
15 Year Member
Photogenic
Photoriffic
Top Answer: 3
 
Joined: Oct 2010
Posts: 2,276
Likes: 337
From: "ɹǝpunuʍop", Adelaide, South Australia
Default

i bent up a piece of copper plate and mounted a "removable key switch style" on my side post battery
even added small screw terminals so i could keep the clock (after running a new wire) and radio memory still connected.


Reply
Old Jul 20, 2021 | 07:40 AM
  #6  
74_stingray's Avatar
74_stingray
Burning Brakes
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jul 2018
Posts: 875
Likes: 289
From: LaFayette Georgia
C3 of Year Finalist (performance mods) 2019
St. Jude Donor '19
Default

I use the knife style battery cutoff in all four of my C3s, works great, piece of mind when stored, collector car insurance gives discount for use too.


Last edited by 74_stingray; Jul 20, 2021 at 07:51 AM.
Reply
Old Jul 20, 2021 | 08:18 AM
  #7  
LenWoodruff's Avatar
LenWoodruff
Burning Brakes
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jul 2017
Posts: 1,114
Likes: 149
From: Frisco TX
Default

Originally Posted by Lamouree351
I have been using one like this on mine for a couple years with no issues.

https://www.amazon.com/Battery-Disco.../dp/B0799HW18S
I have one of these on my 78 side terminal and it works great.
Reply
Old Jul 20, 2021 | 08:26 AM
  #8  
VERYSOON's Avatar
VERYSOON
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2001
Posts: 925
Likes: 200
From: TX
Default

I recently installed the knife type switch (Napa) like 74 Stingray has pictured. Took about twenty minutes. Attach to negative cable first, then attach to battery post I found the easiest way to do it.

VS
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jul 20, 2021 | 01:48 PM
  #9  
Duke94's Avatar
Duke94
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
Default


Originally Posted by Lamouree351
I have been using one like this on mine for a couple years with no issues.

https://www.amazon.com/Battery-Disco.../dp/B0799HW18S
I've used this same type for years on multiple cars. Always worked great.

Last edited by Duke94; Jul 20, 2021 at 01:52 PM.
Reply
Old Jul 20, 2021 | 01:55 PM
  #10  
Winger76's Avatar
Winger76
Thread Starter
Intermediate
 
Joined: Jun 2021
Posts: 41
Likes: 5
Default

The knife switch looks like the way to go. Thanks to everyone for chiming in!
Reply
Old Jul 20, 2021 | 02:54 PM
  #11  
gkull's Avatar
gkull
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Default

I did mine for fire safety with the marine sparkless switch. It's in reach of me strapped into the seat. Or for that matter the passenger
Reply
Old Jul 20, 2021 | 03:51 PM
  #12  
John Vance's Avatar
John Vance
Instructor
 
Joined: Jun 2018
Posts: 108
Likes: 17
From: Blue springs mo.
Default

Originally Posted by Winger76
Anyone have a suggestion for a Battery Kill Switch on an Optima Battery with side posts?

I sent ya a messg. Here’s mine. 100amp breaker from auto parts store. Push red button kills all and on bottom of it a red tab comes out just push tab in and it resets. Wired radio memory to constant hot side. Hope this helps. Ps. I bought the shortest pos. Cable I could find to go to batt from breaker. It’s clean and tight. No keys to lose

Last edited by John Vance; Jul 20, 2021 at 03:53 PM.
Reply
Old Jul 20, 2021 | 06:13 PM
  #13  
Bikespace's Avatar
Bikespace
Race Director
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Mar 2017
Posts: 11,947
Likes: 4,506
From: Virginia
Default

Originally Posted by John Vance
I sent ya a messg. Here’s mine. 100amp breaker from auto parts store. Push red button kills all and on bottom of it a red tab comes out just push tab in and it resets. Wired radio memory to constant hot side. Hope this helps. Ps. I bought the shortest pos. Cable I could find to go to batt from breaker. It’s clean and tight. No keys to lose
I've used those breakers in other applications, and they work great. Is 100 Amps enough to run the starter? I'd think a 250 Amp unit would be a better choice, since you are only using it as a switch anyway.
Reply
Old Jul 20, 2021 | 06:59 PM
  #14  
John Vance's Avatar
John Vance
Instructor
 
Joined: Jun 2018
Posts: 108
Likes: 17
From: Blue springs mo.
Default 100amp

Originally Posted by Bikespace
I've used those breakers in other applications, and they work great. Is 100 Amps enough to run the starter? I'd think a 250 Amp unit would be a better choice, since you are only using it as a switch anyway.
I have used just the 100amp with no problems at all. I would like to believe if you trip the breaker starting the car then there’s another problem. I don’t think 200 amp would be needed but I’m sure someone will correct me on this. I have had mine I for two years turned off and on to many times to count. No problems at all. Great knowing all batt is turned off so no drainage.
Reply
Old Jul 20, 2021 | 08:40 PM
  #15  
wilcar's Avatar
wilcar
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2006
Posts: 1,263
Likes: 188
From: Wabasha Mn
Default

Originally Posted by John Vance

I sent ya a messg. Here’s mine. 100amp breaker from auto parts store. Push red button kills all and on bottom of it a red tab comes out just push tab in and it resets. Wired radio memory to constant hot side. Hope this helps. Ps. I bought the shortest pos. Cable I could find to go to batt from breaker. It’s clean and tight. No keys to lose
I use a similar cooper bussman circuit breaker with lower amp ratings for my fan and fuel pump circuits on my carbed C4. For my battery cut off switch I like the cole hersee 24059 heavy duty switch.
Reply

Get notified of new replies

To Battery Kill Switch for C3 Side Post





All times are GMT -4. The time now is 06:19 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE