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Old Dec 11, 2019 | 09:16 PM
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Default Trying to remove battery...

I put the Vette away for the winter. Unfortunately, I no longer have access to an outlet for my battery tender. I attempted to remove the battery to take inside and plug in. I guess I'm just stupid, but I can't figure out how to get it out. It appears to be bolted down somehow. Mine is a 98 with the side post battery. How do I get it out? Alternatively, how long will the battery stay charged with it disconnected? It is an AC Delco Professional, about 2 years old.

Also, when I unscrewed the bolt to remove the battery cables, it looks like the entire post comes out of the battery. Is this normal?

Edited to add: it is covered and parked in an underground heated garage that seems to stay around 60-65 degrees.

Thanks.

Last edited by Lazarus Long; Dec 11, 2019 at 09:17 PM.
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Old Dec 11, 2019 | 09:23 PM
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I believe there is a bolt in the battery tray in the middle bottom that will release the battery. If you just disconnected the battery you shouldn't need to remove it and put on a tender. The battery tender is for when the battery is in a modern vehicle that consumes a small amount of power when the ignition is shut off. Old school cars before computers didn't need tenders for a few months of hibernation.
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Old Dec 11, 2019 | 09:26 PM
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Originally Posted by Beer:30
I believe there is a bolt in the battery tray in the middle bottom that will release the battery. If you just disconnected the battery you shouldn't need to remove it and put on a tender. The battery tender is for when the battery is in a modern vehicle that consumes a small amount of power when the ignition is shut off. Old school cars before computers didn't need tenders for a few months of hibernation.
It isn't that old school. The C5 will run a battery down in 2-3 weeks.
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Old Dec 12, 2019 | 06:53 AM
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Beer:30 is right. There is a saddle clamp with one bolt through the center holding the battery down. It is on the "front" of the battery. If you look down on the tray from in between the two terminal posts, you'll see the bolt. If you remove that, you just have to slide the battery forward on the tray a bit and it will lift right out.
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Old Dec 12, 2019 | 06:54 AM
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Originally Posted by Lazarus Long
It isn't that old school. The C5 will run a battery down in 2-3 weeks.
Not if it's disconnected. .
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Old Dec 12, 2019 | 08:27 AM
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Originally Posted by Beer:30
I believe there is a bolt in the battery tray in the middle bottom that will release the battery. If you just disconnected the battery you shouldn't need to remove it and put on a tender. The battery tender is for when the battery is in a modern vehicle that consumes a small amount of power when the ignition is shut off. Old school cars before computers didn't need tenders for a few months of hibernation.
That's not necessarily true. Battery tenders will make batteries last longer, whether the vehicle they're in puts a drain on them or not. I used to keep my motorcycle battery on a tender all winter and I would get 7-8 years out of a battery. The bike didn't put a drain on the battery when it was parked. There's no down side to using a tender...
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Old Dec 12, 2019 | 09:35 AM
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Originally Posted by Lazarus Long
Also, when I unscrewed the bolt to remove the battery cables, it looks like the entire post comes out of the battery. Is this normal?Thanks.
The side "terminals" use a bolt through the center of each cable end to hold them on, so yes, what comes off is the bolt and cable leaving a flat contact face on the side of the battery with a threaded hole in the center. As others have said, there's a single bolt clamp at the base of the battery that holds it to the tray.
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Old Dec 12, 2019 | 09:56 AM
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Originally Posted by grampi50
That's not necessarily true. Battery tenders will make batteries last longer, whether the vehicle they're in puts a drain on them or not. I used to keep my motorcycle battery on a tender all winter and I would get 7-8 years out of a battery. The bike didn't put a drain on the battery when it was parked. There's no down side to using a tender...
Maybe. Maybe not. I never used a tender on my C3 and stored it for 6 months every year. The battery was still good when I sold it 7 years later. If he doesn't have access to an outlet, he should be good just disconnecting it since it will be stored in a warm place.
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Old Dec 12, 2019 | 10:47 AM
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Here's a picture of where that bolt and clamp are located. I believe it's a 13mm bolt head but 1/2" socket will work also.


Last edited by mstromquist; Dec 12, 2019 at 10:51 AM.
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Old Dec 12, 2019 | 03:05 PM
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Originally Posted by JR-01
Maybe. Maybe not. I never used a tender on my C3 and stored it for 6 months every year. The battery was still good when I sold it 7 years later. If he doesn't have access to an outlet, he should be good just disconnecting it since it will be stored in a warm place.
There's no maybe about it. It's a fact that battery tenders make batteries in storage last longer. Do you have to argue over everything?

Last edited by grampi50; Dec 12, 2019 at 03:06 PM.
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Old Dec 12, 2019 | 03:10 PM
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Originally Posted by grampi50
There's no maybe about it. It's a fact that battery tenders make batteries last longer. Do you have to argue over everything?
You *******. I am not arguing. Just giving my experiences. If he disconnects the battery, more than likely he will be fine. So what if his battery only last 9 years instead of ten. Is that the end of the world? Maybe for you.

Last edited by JR-01; Dec 12, 2019 at 03:51 PM.
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Old Dec 12, 2019 | 03:17 PM
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Originally Posted by JR-01
You idiot. I am not arguing. Just giving my experiences. If he disconnects the battery, more than likely he will be fine. So what if his battery only last 9 years instead of ten. Is that the end of the world? Maybe for you.
First arguing, then name calling. Why do you even bother posting? Most of the time you don't know what you're talking about anyway...
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Old Dec 12, 2019 | 03:51 PM
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Originally Posted by grampi50
First arguing, then name calling. Why do you even bother posting? Most of the time you don't know what you're talking about anyway...
The OP asked if leaving battery in car would be OK. The answer is YES, if he disconnected it. Batteries sit on the shelf for months at a time with no issues. Just trying to make his life easier. Now I know your opinion is the only one that matters, but it isn't always the best one.
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Old Dec 12, 2019 | 04:02 PM
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Originally Posted by JR-01
The OP asked if leaving battery in car would be OK. The answer is YES, if he disconnected it. Batteries sit on the shelf for months at a time with no issues. Just trying to make his life easier. Now I know your opinion is the only one that matters, but it isn't always the best one.
This is a much better response...without name calling...
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Old Dec 13, 2019 | 08:48 AM
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Your battery tray is just a shelf in the car. Leave it in the car and remove the cables.
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Old Dec 14, 2019 | 04:14 AM
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Originally Posted by Lazarus Long
It isn't that old school. The C5 will run a battery down in 2-3 weeks.
First year I had my C5 I didn't remove the battery or put it on a tender. Car started right up after sitting for 6 months.
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Old Dec 15, 2019 | 11:35 AM
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One of the reasons I thought it was best to remove the battery was to prevent the possibility of it leaking on the computer underneath it. I read about it happing occasionally, but how big of a risk is it? Is it more prone to leaking after it discharges?

Thanks
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Old Dec 15, 2019 | 03:34 PM
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Now after you remove the battery, and drop that F%%#ing bolt down into the belly pan, I found you can use a shop vac and get it out. Sigh. Have a great Christmas
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Old Dec 17, 2019 | 11:15 AM
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Originally Posted by Lazarus Long
One of the reasons I thought it was best to remove the battery was to prevent the possibility of it leaking on the computer underneath it. I read about it happing occasionally, but how big of a risk is it? Is it more prone to leaking after it discharges?

Thanks
AGM (absorbent glass mat) batteries don't leak. The leaks you read about are batteries that were circa 1997 used by AC Delco, part of their 'Freedom' line, that could exhibit leaks if their outer casing was compromised (temperature fluctuation, jostling, etc).
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Old Dec 19, 2019 | 06:28 PM
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Originally Posted by lebeeby
Now after you remove the battery, and drop that F%%#ing bolt down into the belly pan, I found you can use a shop vac and get it out. Sigh. Have a great Christmas
I had the socket fall off and do that.
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