Sure, but even these batteries won't allow long range which is why short haul was specified. It's unlikely that batteries will _ever_ get energy density anywhe

Sure, but even these batteries won't allow long range which is why short haul was specified. It's unlikely that batteries will _ever_ get energy density anywhere near enough to make long haul all electric flights possible, even with big efficiency increases. You just can't compete with using 100% of your mass as storage.