can any one tell what the deal is with vettes,after mine sits acouple of days,it acts like it dont wanna crank over,my step dad has c2 and does the same thing,i got a charger to keep on it ,that seems to help,but i was just wandering what causes a vette to do that thanks

woody

 

I have had the car 3 years, and it still has the original battery .I am verysurprised it has lasted this long and never had a problem ! Sorry I cant answer your question...

 

The C5 does have some drains on the battery even when sitting there. How old is the battery?

Maybe it is just trying to tell you to drive it more than just every couple of days.

 

THANKS FOR THE INFO,I WOULD DRIVE ER A LITTLE MORE BUT THE WEATHER HAS BEEN NASTY
BUT THANKS I APPRECIATE THE FEEDBCK

 

This is typical of very old vehicles that have delapidated wire insulation; however, it is NOT normal for a C5. Either your battery or alternator is on its way out or you have an electrical drain somewhere.

 

Prob the battery but did you take you avatar pic in my driveway??

 

Suggest you read Bill Curlee's sticky post at the top of the Tech Section. Could be a grounding problem in both of your cars.

 

nice pic i guess great minds think alike

 

Charge your battery up with a slow charger, remove it and connect a large load, like a few old headlamps to get about a 25 amp load. Connect an accurate voltmeter and time how long it takes to get down to 10.5 volts. It should equal the RC rating on the battery, normally 90 minutes.

If it poops out in short order, the battery is toast.

Otherwise, slow charge the battery to 12.8 volts and go look for parasitic current draw in the vehicle.

The AGM batteries have a unique characteristic, low internal resistance. This means that even a very depleted battery will generally turn over the engine. While that is a good feature, it also means that the battery can be quite degraded before the symptoms become obvious to the driver. That's why they seem to "fail suddenly". They've been failing for some time usually, when they finally give up.

The thing that kills batteries is being left in a discharged state. Short trips and infrequent use make for short battery life. In normal everyday use, the typical car battery is maintained at about 80% of nominal charge. The car's charging system is also tough on a battery, especially a discharged one. It's a constant-voltage electrical system, which will put a hard charge on a depleted battery, further weakening it. Short trips don't afford much time to top off the charge. Add infrequent use and the plates sulphate pretty quickly.