Charging my iPad pro if I use it once a week

Hello Everyone,

i have an ipad pro 11 that I use on average 1 time or 2 times a week, for about 30 mins to 1 hour per session.

I would like to see if anyone has my similar experience, and I would like to know what is the best practice when it comes to charging in order to maximize the life of my iPad pro.

Should I keep it off and turn it on when I need it? Should I keep it plugged in? How often should I charge otherwise? Any other advice?

My desired outcome is to get the most life out of my battery, and to maintain the iPad as well as I could.

Thanks in advance