>>3970395>Unfortunately, they don't hold as much energy as lithium batteriesJust think of Lithium batteries as a lens with strongest venter sharpness, but incredibly shitty corner sharpness (loses energy capacity when it's winter)
Whereas Sodium batteries are like a modern lens design with good sharpness across the frame, and you dont' have to stop down the aperture. (strong battery performance throughout all months of the year)
Ultimately the energy density isn't the end all metric of a battery, if you look at Canon R5 people, they don't even mind their camera having shitty battery life.