Quote:
Originally Posted by trader4
Well, there you go. It's like I said, your test method supplied the car with only 8 volts instead of 12 and who knows what that does to the normal shutdown process of the electronics.
How old is that battery? I know it tested good, but if it's 4+ years old, I'd just get a new one. I doubt your problem is the car being driven around town most of the time. Plenty of cars are driven that way, without the battery being unable to start the car in a couple of days. I'd suspect either the battery or that you have some parasitic current drain that happens sometimes, but not all the time. Does the car always have a drained battery after a couple days, or just some times? You may need to monitor it more to catch it.
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That may be true, but the primary reason I never was able to wait long enough to see if the systems all went to sleep was that the 16 watts flowing through the resistor caused it to quickly get so hot that I was afraid it would burn out.
The battery is about 2 years old. It tested so perfectly that I really don't suspect there's anything wrong with it. I think I'll just keep a solar charger on it a few times a week to make sure the battery stays topped up, and move on to other things, like the sizable oil leak I found (but not its source...) while changing out the front control arm bushings.