deab battery
Thread Starter
Intermediate
Joined: Jan 2006
Posts: 28
Likes: 0
dead battery
I had my 2006 vette hooked up to a CTEK battery charger for the last 4 weeks. I went to start it yesterday and the battery was dead. I took my red-top optima battey back to the AutoZone store and it showed only 4 amps of power left in it. They slow charged it for several hours and it has held its power. I installled it back in the car today and everythiing seems to be OK. I did not have my vette hood fully closed during the 4 week period. Would the underhood light still stay on? Would this light draw enough current to negate the maintenance level of the CTEK charger? Please any assistance with this situation would be greatly appreciated! Thanks!
Last edited by ninetyfour; Mar 20, 2011 at 08:45 PM. Reason: misspelling
Instructor
Joined: Feb 2011
Posts: 230
Likes: 0
From: Mission Viejo CA
Something not adding up here. Seems to me your CTEK might be the problem. It should be keeping your battery at 13.9 volts with minimal current. A simple check with a VOM would verify this.
If your battery is holding fine after the slow charge then I would check your CTEK.
If your battery is holding fine after the slow charge then I would check your CTEK.
Drifting
Joined: Oct 2009
Posts: 1,599
Likes: 22
From: Whittier CA
What were the lights on the CTEK charger indicating before you disconnected the charger and tried to start the car?
The battery charge light should of been solid green and indicating it is providing a Maintenance Charge (full battery symbol) and the selector mode light should of been solid orange and on the vehicle symbol. This is based on you indicating you had the charger connected for the last four weeks.
Good luck!
The battery charge light should of been solid green and indicating it is providing a Maintenance Charge (full battery symbol) and the selector mode light should of been solid orange and on the vehicle symbol. This is based on you indicating you had the charger connected for the last four weeks.
Good luck!
Le Mans Master
Joined: Feb 2007
Posts: 8,514
Likes: 235
From: Currently somewhere in IL,IN,KY,TN,MO,AR,MS,AL, or FL
Sounds like a CTEK failure. The car has an automatic powerdown after 20 minutes. From the manual:
GM REALLY ought to put one of these manuals in every car they sell.
Battery Run-Down Protection
This vehicle has a feature to help prevent the battery from being drained in case any of the following lamps are left on; the underhood lamp, if your vehicle has this feature, vanity mirror lamps, cargo lamps, reading lamps, console or glove box lamps. If any of these lamps are left on, they will automatically time-out after about 20 minutes. To reset it, all of the above lamps must be turned off or the ignition key on.
This vehicle has a feature to help prevent the battery from being drained in case any of the following lamps are left on; the underhood lamp, if your vehicle has this feature, vanity mirror lamps, cargo lamps, reading lamps, console or glove box lamps. If any of these lamps are left on, they will automatically time-out after about 20 minutes. To reset it, all of the above lamps must be turned off or the ignition key on.
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