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Battery drain?
ok, car is an '88 GTA, 5.7 auto, bone stock.
Installed a new battery in june of last year.
The car had pretty much sat outside from then to about a month ago.
I drove it maybe twice in july and august with no issues.
When I went to move it after the winter, battery was completely dead(which was expected). I jumped the car and it fired up after being attached to the cables for about 5 minutes. I drove the car to my new house about 10 minutes away where I let it run longer, maybe an hour, before I shut it off.
I pulled it into the garage that night and it had started up right away with no problem.
Two days later I went to pull the car out again, and the starter would just click, and wouldnt turn the motor over. Not a bad starter btw, battery was indeed low. So i jumped it again, started instantly. Let it run for a little bit.
parked it in the driveway. Went to move it the next day and once again, battery too weak to start the car. Same thing happened again when I went to drive the car 2 days later. After a jump, its fine. That day I drove around for about 3 hours, making a few stops and shutting the car off at those stops, but it started fine when I went to go again. I got home, parked the car, a week later, battery is low again, too low to spin the motor.
I took the battery back to advance auto, they tested it and said it was good and wouldnt replace it.
Car has no radio connected, no aftermarket wiring, and using a multimeter, I only found a 0.01A, or 10mA draw. Nothing changed with the car in the past year. So I'm not entirely sure whats going on. I was pretty sure the winter froze the already dead battery and killed a cell or such, but Advance swears its good. So now the battery is back in the car. I did more testing for a drain, and still only got 10mA(online they say up to 50mA is normal). As of now, I left the battery unhooked and everyday I'm going the check the voltage. If it somehow starts dropping then I know its the battery for sure.
The only other thing I can think of is that the headlight control module is on the fritz. I did cycle the lights before testing for a drain so perhaps it "reset" or fixed itself now.
I really don't know where else to look.
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