What went wrong when I tried to replace my car battery?
August 19, 2009 11:28 AM Subscribe
I just changed my car's old dead battery with a new, just purchased one following the directions here
. Even though I clamped the connectors down hard enough that I can't move either of them, the car seems to be completely dead --- it doesn't appear to be getting any power whatsoever. Any ideas what could be wrong?
posted by jacobm to Travel & Transportation (23 answers total)
Long extended explanation, just in case people are interested / think there's a larger problem:
We have two cars, and one of them hardly ever gets used. Last time I used it was in May, after it had been sitting unused for probably several months. When I left home, it had trouble starting up (but ran fine once it started); and I needed a jump to get it started coming back. I tried to start it again the next day, and it wouldn't start.
So I ignored the problem until today. Tried to start it up again, and got some lights to turn on, but the engine wouldn't go. I jumped it with the good car, and it ran fine; I let it run for about 40 minutes (with the engine running above idle for at least 15 minutes that time). Then I turned the car off and immediately on again, but it still didn't start --- if anything, it seemed more dead than before.
I concluded the battery couldn't hold a charge, so I went and bought a new one. I followed the directions, but the car is now completely unresponsive; I see no evidence that it's drawing any power whatsoever.
I'm assuming I installed the battery incorrectly. Does that sound plausible, and if so what should I do about it? If not, what should I try instead?