About 2.5 weeks ago, I left my headlights on and had to jumpstart the car. Ever since, the car has not sounded "convincing" while cranking/starting it. We had a frost the other evening (maybe 27 degrees out) and the car wouldn't crank at all, but jumped just fine. Voltmeter shows between 14.5-15V across battery terminals while car is running. I let it sit outside after a longish run, and after two hours battery read 12V (not running). About 3 hours later, 10V. I'm letting it sit outside tonite to see what voltage remains in the morning and if it will turn over for me. Battery terminals are clean and tight on the posts. Does this sound like the battery is going bad? I'm more used to the catastrophic failure where you go out to try to start the car one day and get nothing, with no prior warning. This is different than that.
Any input or opinion is much appreciated.
Thanks,
Jay
99 Ag Frost SVT
