Solar panel for Ring Video Doorbell 2020

The solar charger that’s available for my Ring Video Doorbell 2020 won’t work for me. My doorbell is in shade, so I can’t guarantee it will get enough sunlight.

Does anyone know of a solar panel that I can attach to the doorbell? I know how to work with electrical equipment. I’m thinking of mounting the panel on the side of my house and routing the wires to the doorbell.