After serpentine belt fix battery problems car will not turn over

Hello,

Have you tried to jump start the vehicle?
Does it crank over but not start? or just clicks? or No noise when you try to start it?

If you can jump start it but it does not stay running, then it could be a bad alternator.
When the alternator fails, it is unable to keep the battery charged and that leads to engine shutting off.
The alternator should produce 13.6V to 15.2V to the battery with the engine running.

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

If it just clicks when you try to jump start it then you could have an issue with the starter.
However, since it shut off on you it is either an engine sensor or bad alternator.

Please let me know what you are experiencing.

Thank you.

To add to the above, you say the belt tore, do you mean it broke apart after being shredded? Did it come apart and off the pulleys with the engine running? If yes, then look around at the path the belt runs and see if it damaged any of the wiring that runs in those areas. It is very easy to cut or damage many of the wiring harnesses in that area and it may have cut the ones that control the alternator or a crank signal. Then you would just repair the damage.