Q: Q: My battery light is on.

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My car died a few weeks ago and I thought it was because I needed a jump. I had a jump but the battery died (I don't think it was fully charged). That day, the car died and I purchased a new battery. The car worked fine but a few days later the battery light came on. Yesterday, the battery light was on as I was driving and I noticed that my car was feeling sluggish... eventually, the car ran out of power and died. I had to take the battery to Autozone where they charged it for 2 hrs and said the battery was fine. I drove the car as normal but the light remained on. This morning, the light was on when I turned the car on but then it went off... Could this be the wires that plug into the battery (they were very rusted and corroted and I was only able to replace 1 of the 2)... I googled what couuld cause this, and I saw that it could be the alternator. How do I know and get a quote on this repair? My milage is over 220K...not sure on what is the exact milage.

My car has 220000 miles.
My car has an automatic transmission.

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