C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

How many days will your Corvette stay parked before the battery goes dead?

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Old 02-18-2005, 02:48 PM
  #21  
MrNuke
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Just fired her up after almost 2 months of no driving or anything, fired right up. The alarm shoudl only draw minimal amount. If your battery goes down after a few weeks, you either have a bad battery or parasitic loss somewhere.
Old 02-18-2005, 03:50 PM
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Nathan Plemons
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Originally Posted by bogus

The system has a constant drain of about .25 amps.
That doesn't sound quite right, I was under the impression that the non-running drain was in the milliamp range.
Old 02-18-2005, 04:34 PM
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Chris_G
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Originally Posted by Nathan Plemons
That doesn't sound quite right, I was under the impression that the non-running drain was in the milliamp range.
I would expect up to 40 milliamp? I just tried to start my car and the battery was dead after sitting for about 2 months outside
Old 02-18-2005, 04:53 PM
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MrNuke
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I think standing outside in the cold weather wears the battery down a bit more than room temperature too. (My car's in a garage 24/7 which is close to room temp.)
Old 02-18-2005, 10:07 PM
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jfb
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Lead acid batteries self discharge 1% each day at 77 degrees F and each increase of 17 degrees F doubles the discharge rate! If the temperature is reduced, the self discharge rate decreases!
Old 02-18-2005, 10:39 PM
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skeet
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My 85 would drain the fresh in 4 to 5 weeks sitting in the cold .I now have a quick dis-connect switch in the 88 and 95. After 3 weeks the battery is still fully charged.
Remember not to recharge the battery with the cars alternator - this will GREATLY shorten the alternator's life.
Old 02-19-2005, 08:48 AM
  #27  
Atok
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Originally Posted by Photomania
After 8 to 10 days of no driving, the brand new battery tends to go dead. The car has a fairly new alternator. I think there must be a voltage leak in this 1990 six-speed Corvette.

Does locking the doors make the security system drain voltage? I'm not sure, but it seems like the battery stays charged up longer when I leave the doors unlocked. I'd like to drive the car everyday, but I refuse to drive it in the rain, snow or ice. So, it has remained parked for up to 10 days. I've had to jump start it several times. -- Eric
My '95 can easily sit for 2 - 3 months in an unheated garage and still fire right up. I replaced the battery 2 years ago with an Interstate battery. It sounds like you have an electrical problem somewhere causing a current drain or you have a dud battery.

Old 02-19-2005, 08:59 AM
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rws.1
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with JFB... find the source of your current drain.
In the interim buy yourself a battery float charge. Float chargers sense the current drain from your car and only charge at a rate that replaces the drain. That way they can't overcharge or harm your battery in any way. Using one prevents the sulphate build up on the plates,extending battery life There are many brands out there like Battery Tender. I bought mine from Harbor Freight for $7.95. It's the best eight bucks I ever spent.
Old 02-19-2005, 02:11 PM
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C-4 Now
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I can usually let car set 4 weeks with no problem but by 5th or 6th week it is time for a charge. that of course is less of problem in summer!
Old 02-20-2005, 01:20 AM
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Plus, the passenger seat motor is inoperable.


Feel that passenger seat motor if its hot thats your problem.
Also you can put a 12 volt light between your battery pos.& the disconnected pos. cable, then pull fuses to identify the circuit.



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