The battery light is a low voltage light. Yeah, it should have come on if you're below 12.5V I believe. If you jumped the car and it didn't charge the battery, it's probably your alternator (you'll find out if you battery checks out at Autozone). If the batt is OK, put a voltmeter on the batt terminals while the car's running - should be getting 13.5V or so. If not, your alt is bad. If you are, then you've got some serious power draw (fuel pump most likely) and should PM me cause I'm tired of typing what-ifs lol.
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