Hi,
Chances are the alternator is bad or even the serpentine belt is loose or broken, preventing it from charging.
First, open the hood and inspect the drive belt. Make sure it is in good condition and tight. I attached a pic below showing the belt and the alternator.
If that is good, then we need to recharge the battery and check to see if the alternator is producing voltage. It's easy to do and only requires a voltmeter or even a multimeter. Here is a link that shows how it's done:
https://www.2carpros.com/articles/how-to-check-a-car-alternator
One other suggestion. If you remove the battery for charging, take it to a parts store and in many cases, they will charge it for you. After charging, have them load test the battery.
Let me know what you find or if you have other questions.
Take care,
Joe
See pic below.
Image (Click to make bigger)
Wednesday, December 22nd, 2021 AT 7:11 PM