Causes for battery drain?
Thread Starter
Melting Slicks
Joined: Jun 2005
Posts: 2,858
Likes: 1
From: Burlington County NJ
Causes for battery drain?
I have had my 2005 c6 for over 5 years and have never experienced DBS. However, the last 2 times I attempted to start my car, I found it completely dead. I brought the battery into autozone (their mid grade battery) and they charged it and told me that it was good. I installed the battery and the car started, but after about 1 week it was dead again. The battery is only 1 year old and they wont replace it since it checked out ok on load test.
Any comments on other battery drains?
I since purchased the cartek charger, but the battery is too dead for it to do anything.
thanks
Any comments on other battery drains?
I since purchased the cartek charger, but the battery is too dead for it to do anything.
thanks
Team Owner
Joined: Feb 2000
Posts: 53,520
Likes: 77
From: Arizona
I have had my 2005 c6 for over 5 years and have never experienced DBS. However, the last 2 times I attempted to start my car, I found it completely dead. I brought the battery into autozone (their mid grade battery) and they charged it and told me that it was good. I installed the battery and the car started, but after about 1 week it was dead again. The battery is only 1 year old and they wont replace it since it checked out ok on load test.
Any comments on other battery drains?
I since purchased the cartek charger, but the battery is too dead for it to do anything.
thanks
Any comments on other battery drains?
I since purchased the cartek charger, but the battery is too dead for it to do anything.
thanks
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
My initial suspicion is it's just a bad battery.
Beyond that, there are any number of causes of excessive electrical drain. I have a problem believing something suddenly started causing problems after 5 years of trouble free use. If you're so inclined, you can take the car to your favorite mechanic and have a post shutdown battery draw test done. Not sure what that would cost. And like Hoonose said, if the car hasn't had the DBS flash done that might be a good idea. Good luck and please let us know what happens.
Beyond that, there are any number of causes of excessive electrical drain. I have a problem believing something suddenly started causing problems after 5 years of trouble free use. If you're so inclined, you can take the car to your favorite mechanic and have a post shutdown battery draw test done. Not sure what that would cost. And like Hoonose said, if the car hasn't had the DBS flash done that might be a good idea. Good luck and please let us know what happens.
Thread Starter
Melting Slicks
Joined: Jun 2005
Posts: 2,858
Likes: 1
From: Burlington County NJ
what exactly is the DBS flash? is this like a retune?
Also, would it be normal for the battery to drain so much that I cant jump it?
Also, would it be normal for the battery to drain so much that I cant jump it?
My initial suspicion is it's just a bad battery.
Beyond that, there are any number of causes of excessive electrical drain. I have a problem believing something suddenly started causing problems after 5 years of trouble free use. If you're so inclined, you can take the car to your favorite mechanic and have a post shutdown battery draw test done. Not sure what that would cost. And like Hoonose said, if the car hasn't had the DBS flash done that might be a good idea. Good luck and please let us know what happens.
Beyond that, there are any number of causes of excessive electrical drain. I have a problem believing something suddenly started causing problems after 5 years of trouble free use. If you're so inclined, you can take the car to your favorite mechanic and have a post shutdown battery draw test done. Not sure what that would cost. And like Hoonose said, if the car hasn't had the DBS flash done that might be a good idea. Good luck and please let us know what happens.
Last edited by vette-oholic; Nov 23, 2010 at 04:54 PM.
Thread Starter
Melting Slicks
Joined: Jun 2005
Posts: 2,858
Likes: 1
From: Burlington County NJ
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
Remove both battery cables from the battery and try the charger again, hopefully overnight. My '05 wouldn't take a charge until I pulled both cables, then it took a charge and the battery was still working a year later when I traded the car.
Team Owner
Joined: Feb 2000
Posts: 53,520
Likes: 77
From: Arizona
Sometimes when these batteries are stone dead, they need some time on the charger before they will take a jump. Or so I have heard....
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Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
A vette charging system is no diffent than any other car. Test equipment today is designed so even a saleman can use them with accurate results.
We have a whole team of people that go to AZ stores to teach them how the use the equipment.
We have a whole team of people that go to AZ stores to teach them how the use the equipment.
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Sure sounds like a bad battery. What did you DIC volts look like? Can you borrow a battery for a few days. I also have a 05 MN6. I've never had DBS and have not had the flash. All 05's do not have the problem and I don't want to fix something that's not a problem. Make sure it's not the battery before doing anything else. 
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
I don't want to just speculate, but parts do go wrong, eventually. It would be good to check the entire electrical system, incl. and maybe especially the alternator. After all, while it seems sudden, there's nothing in the book that says parts must slowly go bad and give fair warning of imminent failure.
Thread Starter
Melting Slicks
Joined: Jun 2005
Posts: 2,858
Likes: 1
From: Burlington County NJ
Thanks - Ill give that a shot.
