I know you said there isn't much you can do about it now but I would have brought along a couple good [Anker] power banks and recharge them using the solar panels. The power bank *will* recharge the Mavic 3 batteries. I don't know much about...
The key questions I have - what are the camera sensors and what are the resolutions? Focal length doesn't really tell me much of anything about what I can expect for image quality. The price points so far compared to high quality camera gear...