I’m not a rich man by any means. I use the Zoom F6. I attach a portable 40,000 mah battery to it via the USB C port and I have power for days. I generally go out into the bush, find a great sound scape, set it up and camo it up a bit to avoid thieves. I’ll camp 500 meters away. For cities and towns I’ll stay with my equipment and record for a couple of hours. Well I did before CONVID hit, my hobby went to the side when I was focusing on freedom for my family. I’ve only just started doing it again because I forgot to live my life and just remembered to do so.