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C4 Battery charger / maintainer / desulfator project

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C4 Battery charger / maintainer / desulfator project

 
Old 06-22-2012, 11:53 AM
  #21  
johnven
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If you have to hook up directly to the battery guys these come in handy:

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Old 07-22-2012, 05:46 PM
  #22  
AirForceOne!
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What's wrong with just starting it up every week or two while in storage in the winter months? Or can't you disconnect the negative cable so the security system doesn't drain the battery? Like I do on my boat and riding lawnmower.
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Old 07-27-2012, 06:43 AM
  #23  
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Default quick dis-connects

Originally Posted by SUPERCHARGE View Post
I don't understand why your batteries are discharging. You guys may have bigger issues at hand here. As stated, no charger will completely repair a battery that keeps getting depleted. You should figure out where discharge is coming from. And if you're letting your car sit for months at a time during the winter, do what I do, just attach a quick disconnect to the battery. I always install disconnects on my batteries to kill power fast if I ever need to and will always have a charged battery even after sitting for a couple months.
Where can I find this quick dis-connect for the battery? Sounds like a great idea.
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Old 08-15-2012, 10:41 AM
  #24  
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proracr, why are your wheels on backwards?
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Old 03-02-2013, 08:26 AM
  #25  
Richard G.
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I too am surprised that C4 owners need a battery tender. I understand if you just leave it sit for a number of months.
But I feel you are decreasing the life of your Corvette by letting it set.
I run mine at least every thirty days. Bad weather I run it for 20 or more minutes and move my Corvette back and forth thereby exercising trans, brakes and other rotating parts and systems.
I have always bought 84 month batteries (Best I could find).
Old saying, ("If you do not use it you loose it").
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Old 12-02-2013, 02:48 PM
  #26  
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I'm not surprised that a battery tender is needed by many Corvette owners. No more than by many boat owners: both boats and Corvettes are seasonal toys for many, many folks.
Steel, aluminum, rubber, and plastic do not require exercising: they are not living muscle tissue. A Corvette that is sitting in a garage is not decreasing it's life any more than a Corvette that is on the highway going 70 miles every hour.....most likely much less.
Also, starting and letting a vehicle sit, idling, for 20 minutes every month can build up condensation inside the engine. Not good. The engine oil must be brought up to normal operating temps (+212degrees) to rid the internals of water vapor. Better to not start the engine at all.
Them's the rules I live by.
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Old 10-31-2014, 07:45 PM
  #27  
vintageracer25
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Originally Posted by hookedonvettes View Post
Here's a question from the frozen north. Living in Kitchener, On,Canada, it obviously gets cold in the winter in my unheated garage, we could get well below freezing. I have always brought the battery indoors before connecting a similar battery tender for the winter months. Provided the battery tender is left connected, is it necessary to bring it indoors for the winter?
Yes... the tender will keep the battery safe through the Winter. I even got 8 years out of a motorcycle battery in a '72 BMW and 10 so far in my Triumph Spitfire. They sit in an unheated garage year round.
David
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Old 11-02-2014, 04:14 AM
  #28  
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Originally Posted by johnven View Post
If you have to hook up directly to the battery guys these come in handy:

Where can I purchase these ?
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Old 11-18-2014, 10:23 PM
  #29  
BenzB
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Originally Posted by AirForceOne! View Post
What's wrong with just starting it up every week or two while in storage in the winter months? Or can't you disconnect the negative cable so the security system doesn't drain the battery? Like I do on my boat and riding lawnmower.
Has more to do with the on board diagnostics than security systems and radios. These OBD systems need to be powered all the time. OBD2 systems especially.
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Old 11-18-2014, 10:26 PM
  #30  
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Wish I could see the photos. I have a Schumacher maintainer for my '91 but would love to see your install.
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Old 10-19-2015, 01:20 AM
  #31  
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After cooking three expensive batteries in an ML430 that sits for many months at a time in my Alaska garage, I reasoned that the battery tender was continually charging it, due to the e-drains by the onboard gadgets. Now, I use a disconnect with a maintainer. Yes it gets Alzheimers, but recovers.

Never had a charged battery freeze.
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Old 10-20-2015, 12:23 PM
  #32  
86C4Z51
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A charged battery will freeze about the same as good antifreeze in your engine block. It never gets really hard like ice does, just gets mushy slushy.

If it does freeze, you got bigger problems than trying to get your Vette out of the garage!
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