Dead Battery G8 GT

[monster mash]

I have a 09 G8 GT that the battery keeps going dead in. It started when the car was parked for 4-5 days. Then 3-4 days. Now it only takes 1 1/2 days. I have left nothing on in the car. The trunk light is staying off as are any lights that I could see. Has there been any problems with these doing that? I have a rant about trying to get the dealer to look at it but will save that for a different place. It fires right up after I charge the battery. There are no check engine lights on. Any thoughts. Thanks

[WickedMom]

Sounds like the battery can't hold the charge... Simple fix. Replace battery, if you hate your dealer... Check with a parts store to confirm before heading to the dealership.


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[-Ray-]

I have the oldest G8 on the forum and still have the original battery. The G8's love long drives. That's what it takes to keep the stock battery charged. I bought a Ctek battery charger to maintain my battery during the winter.
Check the state of charge by going to engineering mode. If it is less than 20 percent, it won't take long to deplete it.
What are you using to charge it?
Also, maybe a parts store can check the battery state of charge for you.

[BLKG8]

I'm Driving home with a brand new battery ..... For my wife's car. The G..still good. And it always sits for a week while I'm out working. Owned it since 7/08

Sent from my Galaxy S™...

[monster mash]

I'm using one of those Automatic chargers that NAPA sells. 2amp trickle, 10 amp charge and 40 amp start. I used the 10 and 2.

[BlueJacket]

Do you have a Dashhawk?

I have already replaced my battery.

[Unclesams_G8]

My car did the exact same thing, the dealer told me the battery had a bad cell in it. I bought the car last Sept...........hopefully this is not a trend, batteries should last longer then a year.

[WickedMom]

My car did the exact same thing, the dealer told me the battery had a bad cell in it. I bought the car last Sept...........hopefully this is not a trend, batteries should last longer then a year.

The more environmentally safe a battery is, the less life it will have. Just like everything else...


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[pokey]

Didn't I read somewhere OnStar draws some power when the car is off? If you are not using OnStar you could try unpluggin the unit.

Sorry about the battery related reply in the other thread, just noticed this one. My under 5 mile commute to work and back doesn't seem to keep my battery charged very well. I hope the Battery Tender I use will keep it healthy but I'm sure I'll have to replace eventually.

[monster mash]

I don't have a dash hawk. Er whats that? Anyway, I don't use that onstar I'll look to unplug it. WickedMom, that is a good idea about calling to see if the parts counter has the battery first. It will keep them from weaseling out on me if I already know they have one. Thanks for the replies.

[TomPierce]

For the first time in it's life, the G8 didn't start on the first try. It sounded really weak even though I've driven the cat as recently as Sunday.

I'm off to buy a new battery - hearing the stories here there's no sense trying to rejuvenate a dying battery.

later

$144 - 3 year replacement - 7 year prorated warranty - in stock at my local AutoZone - now I just have to change it out :)

[Crazy Paul]

VE Commodore/WM Caprice - Battery Goes Flat Without Obvious Reason
http://www.ls1.com.au/forum/showthread.php?t=75189

[RamJet]

I'm still on the original battery, bought the car in 8/08. My commute is 86 miles/day, so that may have something to do with it.

[-Ray-]

VE Commodore/WM Caprice - Battery Goes Flat Without Obvious Reason
http://www.ls1.com.au/forum/showthread.php?t=75189

LOL, I read that whole thread.

[screw991le]

Yeah, my car is going into battery saver mode to much. Just add that to the list of things to fix before the warranty runs out.

[monster mash]

VE Commodore/WM Caprice - Battery Goes Flat Without Obvious Reason
http://www.ls1.com.au/forum/showthread.php?t=75189

Thankyou Sir, I replaced the battery. However, my cd player is no longer working and I'm hearing a clicking sound from the dash or engine compartment area. I believe that in that thread that you posted, there was some issue with the radio/cd player that had caused someone problems. The wind is blowing to danged hard today, to listen for it under the hood. The clicking sounds like an automatic breaker that resets then trips. I just put the new battery in today. I used a load tester on the old battery and the needle pegged over on bad. I guess that I may have to bite the bullet and take it to those azzholes at the dealer. I pulled the fuze on the Onstar and also tried the other fuzes by the battery one by one, and the clicking was still there. It is hard to hear not loud at all and is not the cd player, it makes a different sound. I am going to read the rest of that super long thread. I was going to unhook the onstar anyway, the fuze will do it right? This is about as bad a pain in the rear as the Super Secret Passlock security system on my Grandam, which eventually got unhooked by me.

[TurboMike]

You dont know how long a new car sat on the lot before they sold it... how many times it was drained and recharged for weekend testdrives. I've seen new cars sold with weak batteries.

[-Ray-]

You dont know how long a new car sat on the lot before they sold it... how many times it was drained and recharged for weekend testdrives. I've seen new cars sold with weak batteries.

My G8 was only on the lot for 24 hours.

[Struggle]

You dont know how long a new car sat on the lot before they sold it... how many times it was drained and recharged for weekend testdrives. I've seen new cars sold with weak batteries.

I think we are having this on our 2010 Tahoe. After a short while of having the radio on it goes into battery saver mode and shuts down in less than a hour of of it being on.

[TurboMike]

My G8 was only on the lot for 24 hours.

Mine was only at my local dealer a short time, but then I found out it had been for sale at two other Pontiacs that moved it on or went out of business. Plus the car was on a long boat ride and trucked from a port before any of that too. So even tho mine had 50 miles on it, I knew it had sat around a loooong time. I changed the oil the first week I had it.

[texn884]

How did this get here??

[travis gore]

How did this get here??

they must have thought that you were bored SPAM BE GONE!!!! :boxing:

[-Ray-]

How did this get here??

I'll delete it when I find a pc.

[texn884]

dam its gone there was some good hot chicks on it