| Remote controlled battery disconnect [message #368608] |
Sun, 30 January 2022 08:12  |
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RF_Burns
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
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This thread from several years ago on a coach fire had morphed into a discussion on battery disconnects.
http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&th=40594
A discussion came up on a remote controlled battery disconnect so it could be activated by the door. Of course a battery disconnect is of no help when its mounted near the battery and the area is engulfed in fire. A latching relay (solenoid) is activated by a coil and remains ON or OFF until switched again, so no power is consumed in either state.
I found several of these disconnects on-line, but they are only rated for about 100 amps or so which is not enough to operate the starter. So you could install it so that starter current does not flow through it, maybe in-line with the main fusible link?
-Has anyone came up with a definitive way to wire such a disconnect so that starter current does not flow through it (that is the easy part).
-What about the alternator going to full voltage output if it were to lose the battery reference?
-Can it be setup to kill the engine as well?
-Would a second disconnect be required on the house battery? (I'm guessing that would be a good idea)
Anything else I am missing?
Here is a couple of these disconnects:
https://www.amazon.com/INTELLITEC-0100055000-Battery-Disconnect-Relay/dp/B072N8NYN2
https://www.summitracing.com/parts/aww-500834
Here is a video showing how a latching disconnect works:
https://www.youtube.com/watch?v=UGxJs5XaSWY
any input is welcome.
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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