Will not restart without a jump

Hello,

It could be a combination of both. I would lean to the battery being bad, but I have included a few links below for you to go to:

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

Please go through these guides and get back to us with what you are able to find.

Thanks,
Alex
2CarPros

Welcome to 2CarPros. It could easily be both of them. A bad battery can put a strain on the alternator and cause both to fail. Is the charge/battery light on or the check engine light? The first thing I would do is have the battery and charging system tested. Some of the parts stores will do that for free. That will give you a starting point. If both test good, which is possible then it could be a bad cable or connection to the battery that is causing the problem. However the first thing would be to have the system tested.