Battery light stays on?

You may have a defective alternator but to be sure let's use this guide to see if it is charging:

https://www.2carpros.com/articles/how-to-check-a-car-alternator

If not let's check the fuses #27 in the left front of the engine compartment and fuse #3 in the lower left end of the dashboard. Here are the alternator wiring diagrams so you can see how the system works.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If everything checks out you may need to reset the battery monitor, this video can help:

https://youtu.be/ETNv2S_idIU

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.