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Originally Posted by JFP in PA
How did they test the battery? If all they did was run a voltage test, they wasted your time. The only true test of a battery is to fully charge it, let it sit and cool, and then load test it. You cannot run a proper load test on a partially discharged battery. A load test is a "pass/fail" test, the battery can either deliver the amps or not.
From what you describe, it has all the earmarks of a dying battery.......
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Or test the electrolyte for specific gravity. Sounds like a battery issue to me too. Basically, if the battery is 3 yrs. old or older, it is always suspect.
Lead Acid batteries also incrementally lose their ability to hold a charge with each discharge. After about 5 discharges, it's usually shot. This would be exascerbated in cold weather too.
Bottom line, quit p*ssing around and if it's 3 yrs. old, replace it and be done with it. Last thing you want in a Chicago winter is to be stranded in the cold by a so-so battery.
