2 X Battery Questions Please.

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Feb 29, 2008 | 10:10 PM

exukboy

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Burning Brakes

Joined: May 2004

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2 X Battery Questions Please.

1. When a battery gets completely discharged due to "dbs" (I'm now on my third AC Delco in my 05 vert) does it shorten the life of the battery even if it's carefully re charged from dead flat at a very low trickle charge?

2. Is it ok to trickle charge the battery using a battery tender with the car's + & - connectors still fastened to the battery terminals?

Mar 1, 2008 | 10:25 AM

VET4LES

Team Owner

Joined: Oct 2004

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From: San Clemente CA

Yes and yes. Has the dealer done the flash to correct the DBS problem? I have not read of any additional problems after the flash.

Mar 1, 2008 | 10:47 AM

haljensen

Race Director

Joined: Mar 2005

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From: Austin Texas

My '05 had a dead battery the first test drive and again on the second test drive and yet again when I picked the car up 2 days later. One more time a few months ago when it sat for 10 days. The battery was so dead (4.4 Volts on my multi-meter) I had to disconnect the battery terminals to get it to take a charge. That battery is still in the car and still working today after 3 years of use.

Mar 1, 2008 | 11:12 AM

NavyC4S

Safety Car

Joined: Sep 2007

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From: RIP Lotus

St. Jude Donor '09

Two words. Yellow Top. That battery will run the car without the alternator for 1000 years. just sayin...

Mar 1, 2008 | 12:16 PM

Hoonose

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Joined: Feb 2000

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From: Arizona

I had 3 or 4 episodes of DBS with my early '05, and 2 episodes of stone cold dead due to technician screw ups, and my battery still lasted more than 2 and 1/2 years.
But it's warm where I live, and that might have saved me.

Mar 1, 2008 | 12:20 PM

timd38

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From: Hudson WI

NCM Sinkhole Donor

Quote:

Originally Posted by NavyC4S

Two words. Yellow Top. That battery will run the car without the alternator for 1000 years. just sayin...

A yellow top Optima is made to take deep discharges. The only issue is that since Optimas have almost pure lead in them, you may need to jumper it off another battery to charge it unless you have a charger designed for AGM.

Mar 1, 2008 | 02:04 PM

exukboy

Thread Starter

Burning Brakes

Joined: May 2004

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Thanks for the quick response guys. No I haven't had the flash done as yet. I think I overcharged the second battery! Going to pick up a battery tender today and start using that.

Mar 1, 2008 | 05:34 PM

Dffej51

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Joined: Jun 2005

Posts: 68

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From: Reading PA

I had serious DBS problems with my '05 w/ manual tranny until I got the software download 'fix' developed by the GM engineers. After that, I never had the problem again. Now have an '08 and have finally started to use a battery tender as the cold weather here in PA with long periods of not being able to drive the Vette have caused battery problems. Tender is attached to terminals that have the cables attached and no problems.