There is apparently an experimental Zenith 650 with electric power normal performance and 1.5 hour endurance with 30min reserve. I’m not sure about the fine performance detail.
My observation is that from time to time we hear of new battery technologies that allegedly at least double performance and efficiency at the same weight. Similarly with electric motors but less about efficiency and more about weight.If any of these come to fruition, and assuming charging issues are resolved, we are going to have practical short range electric flight.
Next comes the question of certification of such systems by the FAA and in CASAs case, finding suppliers of “approved” electricity.