Re: {Chrysler 300} Battery Switch and Mystery Switch
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Re: {Chrysler 300} Battery Switch and Mystery Switch




John:

I always enjoy your insightful comments on the "letter" cars. However, from a safety standpoint it does matter which battery terminal is switched. If you place the disconnect switch on the "hot" terminal, even when the switch is "open" the battery is still "hot" between the "hot" terminal and any ground in the car. This can easily cause major problems if tools or anything metal is either accidentally laid across the terminals or from the "hot" terminal to any "ground" in the car. If the "ground" terminal is switched, once the switch is open, the battery is dead.

Dyke Ridgley


Ridgley Racing
5500 Walmsley Rd
Decatur, IL 62521
 
217-865-2300 p
217-865-2309 f
 
 


On Thu, Jul 20, 2023 at 8:32 AM John Grady <jkg@xxxxxxxxxxxxxxxxx> wrote:
on battery switches , perhaps better to fix any drains , or possibly longer term remove clock  fuse or put switch under dash for clock . Or to pull the cable is not that hard if many months .  
There should be no discharge of battery ,car resting  but it is true that rodent damage on a live harness may cause a problem if it causes a short but that seems kind of remote , involving live wire , dumb rodent ( oxymoron)  and ground that touches the skinned wire just right . rodent will feel 12v in mouth and go elsewhere . .I can’t stand mice , have destroyed wiring in several cars , including 10 k $ repair  harness on V12 mercedes . 

After years of that the only thing that works is lots of old style traps and peanut butter refreshed every few months 

A fusible link ( sold for Fords) ) at main power takeoff at starter relay protects car even while driving if a short , works parked too . Where to spend the few $ , and have  to look to find it 
Why not switch ?
If , by some mentally not too swift event , someone opens switch or did not close it well, and battery is disconnected while running , volts can go way high and blow up your radio , bulbs , dash power supply , any aftermarket ignition , gauges etc . 
As far as which pole it does not matter electrically  but poles are different diameter use the one that fits right . 

Not advocating any thing , do as you want . I don’t use them . Someone may misoperate it,= disaster . 
 .  Plus look is just distracting … YMMV 
john g 

Sent from my iPhone

On Jul 20, 2023, at 8:44 AM, Dyke Ridgley <ridgleyracing65@xxxxxxxxx> wrote:


I have used the "green" knob switches for over 40 years. Never a problem. Remember to always "switch" the "ground " side of the battery regardless of what polarity the car uses.

Dyke Ridgley
Ridgley Racing
5500 Walmsley Rd
Decatur, IL 62521
 
217-865-2300 p
217-865-2309 f
 
 


On Wed, Jul 19, 2023 at 10:07 PM D.C. Mason <petergriffinforpresident@xxxxxxxxx> wrote:
Zach,

I haven’t tried the ones Marshall recommended but these are also an option, have had good results so far with this type, they sell them at Napa. 

<image9.jpeg>


Sent from my iPhone

On Jul 19, 2023, at 11:08 AM, Marshall Larson <granitledge@xxxxxxxxx> wrote:


These are the disconnects that I use on my cars. IMHO they look much better than any other style.


On Wed, Jul 19, 2023 at 9:22 AM 'John Lazenby' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:
Zach,

It sounds like the one toggle switch is for your power antenna and the second one has been added for something else.  Possibly and electric fuel pump.  Regarding a battery master cut off switch I use a unit offered by Wurth.  Here is a link for that:  Battery Disconnect Top Post Knife Blade Master Switch for Car RV Truck Vehicle | eBay

John Lazenby

On Wednesday, July 19, 2023 at 05:05:00 AM PDT, Zach Hietsch <zhietsch@xxxxxxxxx> wrote:


Hello,

Does anyone know of a good battery switch. I would like to stop taking off the terminals when the car is in the garage. I found a few but I am unsure if they are any good.

Also I have a 300B and there are two switches in the dash that I am not 100% sure what they do. They are located to the left of the knob used to reset the trip odometer. The one I am pretty sure one is for the antenna(currently it’s not working so I can’t check) but the one further away only toggles left and back to center. Any insight as to what it does.

Thanks
Zach Hietsch

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