2nd Battery Tray?
November 30th, 2006, 7:31 PM
#11
RE: 2nd Battery Tray?
The GMT800 (starting in model year 2005) and all the new GMT900 vehicles are equipped with a Regulated Voltage Control (RVC) system, this system turns off the alternator when it is not required in order to improve fuel economy.
This process is controlled by the onboard computers and is not just a simple device attached to the battery.
This process is controlled by the onboard computers and is not just a simple device attached to the battery.
December 20th, 2006, 9:12 PM
#14
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RE: 2nd Battery Tray?
TMW597,
Did the dealer itemize the parts used on your invoice for the 2nd battery install & if so would you post them as I am going to add the 2nd battery as well. Also, any wiring instructions would be appreciated.
Thanks in advance.
Did the dealer itemize the parts used on your invoice for the 2nd battery install & if so would you post them as I am going to add the 2nd battery as well. Also, any wiring instructions would be appreciated.
Thanks in advance.
December 21st, 2006, 3:50 PM
#15
RE: 2nd Battery Tray?
ORIGINAL: konasmrz
TMW597,
Did the dealer itemize the parts used on your invoice for the 2nd battery install & if so would you post them as I am going to add the 2nd battery as well. Also, any wiring instructions would be appreciated.
Thanks in advance.
TMW597,
Did the dealer itemize the parts used on your invoice for the 2nd battery install & if so would you post them as I am going to add the 2nd battery as well. Also, any wiring instructions would be appreciated.
Thanks in advance.
I'm sorry I don't have the parts list for it. My understanding though is it should be less than $300 in parts.
December 22nd, 2006, 1:02 AM
#16
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RE: 2nd Battery Tray?
zx, what would you recomnd me to do. i have a sound sytem in me tahoe tha is pushing 1800 watts, my lights are strating to dim when the bass hits, a changed the battery to an red top optima. should i run the original for the truck and the optima for the audio sytem? basically zx should i keep the original battery as it was and add the optima for the audio? thanks
December 23rd, 2006, 2:58 PM
#17
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RE: 2nd Battery Tray?
ORIGINAL: TMW597
I've had the second battery installed on my 2007 GMC Yukon XL. The wiring harness under the hood is all prewired for the second battery. You're right most dealer's service departments don't know anything about it when you mention it. It took me talking to about 5 before finding someone that even had an idea about it. I had to pull all of the schematics myself to take to the dealership to do the install. It seems like some dealer's service department will respond to "RV or trailer kit" when talking about the second battery. I've also had some response to diesel battery kit. It's pretty nice having the extra power, and the alternator obviously recharges both of them. I have most of my "extra" electronics connected to that second battery, and I also run a power inverter from time to time.
The 2nd battery is sitting right on that tray.
I've had the second battery installed on my 2007 GMC Yukon XL. The wiring harness under the hood is all prewired for the second battery. You're right most dealer's service departments don't know anything about it when you mention it. It took me talking to about 5 before finding someone that even had an idea about it. I had to pull all of the schematics myself to take to the dealership to do the install. It seems like some dealer's service department will respond to "RV or trailer kit" when talking about the second battery. I've also had some response to diesel battery kit. It's pretty nice having the extra power, and the alternator obviously recharges both of them. I have most of my "extra" electronics connected to that second battery, and I also run a power inverter from time to time.
The 2nd battery is sitting right on that tray.
Thanks..
December 23rd, 2006, 3:27 PM
#18
RE: 2nd Battery Tray?
I do have them in PDF form. Let me figure out if I can post them to the site for ALL to enjoy. In the meantime though, send me your email address and I'll email them to you.
I would be careful on the "aftermarket" parts unless you RELLY understand how the GM's are wired.
I would be careful on the "aftermarket" parts unless you RELLY understand how the GM's are wired.
December 23rd, 2006, 3:47 PM
#19
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RE: 2nd Battery Tray?
ORIGINAL: TMW597
I do have them in PDF form. Let me figure out if I can post them to the site for ALL to enjoy. In the meantime though, send me your email address and I'll email them to you.
I would be careful on the "aftermarket" parts unless you RELLY understand how the GM's are wired.
I do have them in PDF form. Let me figure out if I can post them to the site for ALL to enjoy. In the meantime though, send me your email address and I'll email them to you.
I would be careful on the "aftermarket" parts unless you RELLY understand how the GM's are wired.
I know my way around electronic schematics. I've been working on cars since I was 15, now I'm 55.
I may have burned lots of brain cells, but I beleive I have some left that will get me in trouble from time to time...
thanks for the offer of PDF's, I used to have access to GMSPO diagrams, but it's too expensive to stay subscribed...
Ernie
December 23rd, 2006, 3:50 PM
#20
RE: 2nd Battery Tray?
Cool, got your email address. Now go back and edit your post, and delete it so you don't get spammed. I should have told ya' to PM it to me. Stand by for the email.