2023 suburban RST aux battery tray GM # 84817040
- Thread starter ndamico
- Start date
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UsualSuspect
Full Access Member
Might want to take a look at this thread. I doubt there is much difference between the year models. https://www.tahoeyukonforum.com/threads/dual-battery-setup-using-oem-parts.131917/
jforb
Full Access Member
except they redesigned the front body of the truck, adding lots of heft where the battery used to go?
DougAMiller
Full Access Member
I have looked into the aux battery placement on the current generation, and from what I can tell, it is mounted behind the driver's side panel in the rear cargo area where the subwoofer would normally be. I found some information showing this in the PPV documentation. It appears that the aux battery for PPV applications may be a lithium ion battery that is about half the size of the main battery. I'm having trouble finding the documentation where I saw this though.
Yeah that's where it goes. I can't figure out how big the battery can be. I'm going to put a lithium in, but still searching for documentation. Called my friend at the dealer parts dept and part is available but they couldn't produce any documentation
DougAMiller
Full Access Member
Found the PPV documentation, here's a link to it:
Aux battery is on page 25. On closer inspection it does appear to be a conventional lead-acid battery, but seems to me that it would have to be much smaller than the main battery to fit there.
Aux battery is on page 25. On closer inspection it does appear to be a conventional lead-acid battery, but seems to me that it would have to be much smaller than the main battery to fit there.
jforb
Full Access Member
Interesting...my LS Tahoe doesn't have the opening it would fit in.
DougAMiller
Full Access Member
I suspect the interior trim with the access panel is a police package specific part.
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