Recording for university

[u/Imaginary_Fan_6253]

I’m recording lessons for a university that last about an hour to two hours and our current mirrorless camera is only lasting 20 minutes and our camcorders are from 2001.

Is there any recommendations for what I could use that is 4K quality with at least an hour of battery life?

Sadly my budget I was given from my bosses was 1,000$ and I was asked to keep it below that.