Prime charging cable warranty?

2017 prime and 2020 prime both charging cables not working. With a non contact voltage tester, one of them chirps like it’s got power, but no power indicator light, and it doesn’t charge the car. The other has a flashing power indicator light and will sometimes still charge some, but very slowly.

I’m pretty handy, and if someone has links to previous threads or any personal insight, I’d like to try and repair each one back to working order, or at least use parts from each to get one functioning safely.

ideally they’re both under warranty? Are the charging cables covered by California 10/150k warranty?

2017 and 2020 prime both with around 145k miles

thanks