wow, what a precise question. i would do a bit more research on your issue, the alternator for one doesnt control the lights, nor do you ignite an alternator. you should just leave the hood closed and drive it to a shop.
Alternator is not charging. Have it tested and/or replaced.
triple diodes in alternator are bad
you need a new alternator
If the alternator is working properly then it should go off onec the engine has started. If it does not then you probably have afaulty alternator.
If the alternator belt is tight, the alternator may be at fault.
u have to to take the lens off the light
It's not charging the battery. Check the alternator.
alternator is probably not charging. you need to fix this NOW. new alternator is likely the only repair.
You might have a bad battery, a poor connection between the battery and alternator, or a bad ground from the battery.
Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery.
possible battery drain, either bad wiring or alternator issue.
Loose belt, bad wire connections, or bad alternator. Your local parts store should be able to test the alternator for you.