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Old Apr 8, 2017 | 05:04 PM
  #1  
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Default Strange battery question

Just took her out of hibernation today. Battery was completely dead and my tender had a red light flashing indicating an issue.

Got it started but figure the battery was 4 years old so pulled it out and noticed the case had swelling.

I am wondering if the tender could have overcharged it or it was just normal battery failure. I have used it the last 3 years with no issues.
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Old Apr 8, 2017 | 05:57 PM
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Originally Posted by Mastertvtech
Just took her out of hibernation today. Battery was completely dead and my tender had a red light flashing indicating an issue.

Got it started but figure the battery was 4 years old so pulled it out and noticed the case had swelling.

I am wondering if the tender could have overcharged it or it was just normal battery failure. I have used it the last 3 years with no issues.
Excessive heat. Could be from the battery tender or another heat source.
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Old Apr 8, 2017 | 06:09 PM
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A reason why I pull my battery out and put it in the basement over the winter. The case could have cracked and spilled acid all over your electronics. You should always check on the battery once in awhile.
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Old Apr 8, 2017 | 08:29 PM
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You got lucky
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Old Apr 8, 2017 | 08:34 PM
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Probably good timing (almost too late?).
Curious; what brand and model of tender? Not that it's necessarily the tenders fault...
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Old Apr 8, 2017 | 08:55 PM
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Originally Posted by grantv
Probably good timing (almost too late?).
Curious; what brand and model of tender? Not that it's necessarily the tenders fault...
I use the C-Tek and have for 3 years.
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Old Apr 9, 2017 | 09:24 AM
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Originally Posted by Mastertvtech
I use the C-Tek and have for 3 years.
My battery tender is the Vette's alternator. I drive the vette for 20 miles at least once a week all Winter long. I live where we get plenty of snow (albeit not this year) and as long as there is no snow or salt on the road, I drive. I just do not trust using any tender on any battery.
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Old Apr 9, 2017 | 12:11 PM
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Originally Posted by Mastertvtech
...I am wondering if the tender could have overcharged it or it was just normal battery failure. I have used it the last 3 years with no issues.
If the tender is fine, it should not have overcharged the battery.

A patented float and pulse maintenance strategy ensure that once fully charged, the battery is safely maintained at maximum capacity indefinitely by the charger, which is crucial to maximize battery lifespan. Many CTEK battery chargers have a RECOND function.
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Old Apr 9, 2017 | 09:20 PM
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Your battery may have been the culprit - it quit taking the charge and once it was without charge it froze. You definitely need a new battery and make sure you check the tender next year a week or so after you put your Vette into storage to make sure it's all good. Then check the tender every few weeks after that to see that it keeps the battery charged.
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Old Apr 9, 2017 | 10:29 PM
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I would never leave a battery in a car over the winter. Too many bad things can happen.
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