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3/30/10 12:10pm - Original Message: '05 Dead Battery Syndrome'
progolfer72
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Horseshoe Bay, TX - USA

Vette(s):
2005 Silver Convertible, Manual

Joined: 3/29/2010
Posts: 1
I have a 2005 with a 6 speed manual transmission and am having problems with the battery going dead while the car is idle.  I back into my garage each time so I know the car is in reverse where it should be.  Any suggestions on how to solve this issue?  Thanks
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3/30/10 12:17pm - Reply: '05 Dead Battery Syndrome'
MNovelli
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Bowling Green, KY - USA

Vette(s):
2005 Coupe, 6 Speed Manual, 3LT, Magnetic Selective Ride Control, Onstar, XM Satelite Radio, Millenium Yellow

Joined: 12/22/2009
Posts: 5

I'm no mechanic.  However, I've had that happen a couple of times.  Are you sure you're not putting the car into the accessory mode instead of turning it off.  I know that sounds stupid, but again, I've done it a time or two. Also, it may just be that your battery is shot.  I have had batteries go from working perfectly fine to dead from one minute to the next.  If it is the original battery, that may be the cause. 



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3/30/10 12:39pm - Reply: '05 Dead Battery Syndrome'
CRMGSCoupe
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Camp Hill, PA - USA

Vette(s):
2002 QuickSiver Convertible, 2007 LeMans Blue Coupe, 2010 Crystal Red Metallic Grand Sport Coupe (Heritage Edition). 6 Speed Manual

Joined: 4/7/2008
Posts: 46
Best suggestion - go by a new battery, and then at the same time, by a
good battery maintainer.
 
As far as what's wrong, the 2005 early 2006 had a lot of problems with batteries, although some people never experienced any problems.
 
I use a "Battery Tender" plus and have never had an issue with the battery. They cost anywhere from 45 - 65 dollars depending on where you buy it from.
 
Would not recommend the Sear model, but am sure others will see the post and give you their recommendations on which one to buy as well.
 
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3/31/10 2:19pm - Reply: '05 Dead Battery Syndrome'
Davetx
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Joined: 11/14/2003
Posts: 44
I have a 2001, 2005 and 2010. The battery will go dead at 6-8 weeks idle due to computer and alarm draw. There are actually two solutions, which are the battery tender as mentioned which I use on two of my cars but the 2001 is in a car port with no power so I use a battery disconnect switch mounted in the battery area. Both solutions work well.
 
Dave
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3/31/10 9:42pm - Reply: '05 Dead Battery Syndrome'
fp_vetter07
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Copperas Cove, TX - USA

Vette(s):
07 Machine Silver Coupe 6 sp pattle shift auto 72 Stingray convertible

Joined: 8/6/2008
Posts: 58
Do you have GPS in the car or nav system? If so make sure you  turn them off or unplug them. I have some  pictures of a burned up car because they left the GPS plugged in. You should unplug anything that you use, ie cell phone chargers. They have a constant draw on the battery.

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7/31/12 5:52pm - Reply: 'Re: 05 Dead Battery Syndrome'
mykull5150
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rochester, NH - USA

Vette(s):
2006 convertable with all factory &and some personal upgrades

Joined: 9/28/2009
Posts: 6
I got a yellow top optumas &^ have not gone dead yet.... the delco was unpredictable
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4/17/18 5:37pm - Reply: 'Re: 05 Dead Battery Syndrome'
71stngr
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Willits, CA - USA

Vette(s):
1971, C3, 454 black&blue, coupe, blue real flames. 2005, C6, 6.0L Red, coupe, chrome wheels 2014, C7, Syber Greay, pearl white stripes, chrome wheels

Joined: 3/11/2013
Posts: 8
I do use a battery tender, but the battery did die over the winter.  I will replace it with a yellow top soon and let you know if it fixes it.  As far as the accessory mode, it was not in that mode.  I've stopped and restarted several times, but will get the new battery.  goes into reverse just fine.
Thx


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4/17/18 5:40pm - Reply: 'Re: 05 Dead Battery Syndrome'
71stngr
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Willits, CA - USA

Vette(s):
1971, C3, 454 black&blue, coupe, blue real flames. 2005, C6, 6.0L Red, coupe, chrome wheels 2014, C7, Syber Greay, pearl white stripes, chrome wheels

Joined: 3/11/2013
Posts: 8
I have a factory GPS, and haven't had any USB or anything plugged in all winter. I drove it last month, and it was fine. 

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4/17/18 5:45pm - Reply: 'Re: 05 Dead Battery Syndrome'
71stngr
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Willits, CA - USA

Vette(s):
1971, C3, 454 black&blue, coupe, blue real flames. 2005, C6, 6.0L Red, coupe, chrome wheels 2014, C7, Syber Greay, pearl white stripes, chrome wheels

Joined: 3/11/2013
Posts: 8
I have a  71' C3, this 05' C6, and a 14' C7.  Love them all, and generally have a battery tender on the C3 and on the C6, and alternate them with the C7 on the 2 tenders.  Sounds like a completely dead battery though.  I will fix that with a new yellow top and see.
Thx, Ken


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4/20/18 2:25pm - Reply: 'Re: 05 Dead Battery Syndrome'
71stngr
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Willits, CA - USA

Vette(s):
1971, C3, 454 black&blue, coupe, blue real flames. 2005, C6, 6.0L Red, coupe, chrome wheels 2014, C7, Syber Greay, pearl white stripes, chrome wheels

Joined: 3/11/2013
Posts: 8
My 2015 C6, Z51, had a dead battery.  I jump started it, and it started fine, but when I started to drive it forward, it would move, but the RPM stayed under 1400, in Drive.  I would shift to park, neutral or reverse, and it would Revline over 6000 RPM, and move in Reverse fast.  Just not in Drive or Low.......  Thanks to your help, I went and got a yellow top Optima battery, and like magic, it works fine.  Thanks to this forum and all you smart vette  guys.

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5/9/18 8:03am - Reply: 'Re: 05 Dead Battery Syndrome'
Olsarge
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Ft. Lauderdale, FL - USA

Vette(s):
2013 Grand Sport 4LT, A6, Velocity Yellow.

Joined: 1/23/2018
Posts: 1
Looks like I'm odd man out here. I bought my 2012 GS last December. It had a 10 month old Optima yellow top battery. In January the car sat for five days and the car would not start. I took the battery to O'Reily's. They tested the battery and said it had a dead cell and because I did not buy the battery new it was not warrantied. I bought their store brand AGM battery. I have a Tender Jr pigtail wired into the Vette but don't normally hook it up because I drive it every few days. In April the car sat for 10 days without the tender and it was dead as a hammer. I charged it and then put the tender on it. The next day it was dead again. I charged it again and put the tender on it again. Since then it's been fine. I checked all the things mentioned here. Car was definitely off not in accessory, etc. Now I just make sure to start it every few days. I talked to my mechanic. He gave me a few pointers. He believes that when I charged the battery the first time it was charged enough to start the car but not fully charged. The tender was not enough to complete the charge and the battery died again. He said to always lock the car with the remote. He says even though you can't open the door without the fob the car is sitting there wait for a command. When you lock the doors it goes into a deeper "sleep" mode and turns off some of those things running in the background. I didn't intend to write a book but this is a consistent problem for a lot of people.
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5/15/18 12:57pm - Reply: 'Re: 05 Dead Battery Syndrome'
LOHpilot
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Ocean View, DE - USA

Vette(s):
2013 Corvette Convertible Night Race Blue with 3LT Ebony interior

Joined: 6/28/2014
Posts: 10
Car shut down with the "OFF" switch -- Check
Manual transmission shifted to REVERSE -- Check
All ancillary loads disconnected (phone chargers, thumb drives, Portable GPS) -- Check
Battery Tender hooked up -- Check

What's missing?

Dance around the car singing a chant to beckon the god of batteries, Volta! 

I do all that stuff in the checklist for my '13 convertible, but not the last one...yet!


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