"service battery charging system" after jump - Battery light on

This sounds like you have a positive battery cable that is shorting out which is common or the battery is shorting internally. I would replace them both to recheck it.

This guide will show you how to replace the battery and the cable is located down on the starter.

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

Please run down this guide and report back

Cheers