Would just be making it up if I guessed ... our prototypes still are using the old cells inside them and until we get the new certified ones it is an unknown.
FWIW... It feels very light :)
you are missing the point of these. This is a specific small battery that nobody else makes. You can buy bigger capacity batteries that share the low form factor from a bunch of different companies. They are bigger and heavier and yes they run longer. Short batteries like the Anton Cine 90 batteries ( which are incredible ) you get a little less than twice the capacity for something almost 4x the size.