Yes, and they are improving by a few percent every year. No major breakthroughs, but compounding improvements year over year, which do add up. Batteries have i

Yes, and they are improving by a few percent every year. No major breakthroughs, but compounding improvements year over year, which do add up. Batteries have improved incredibly in my lifetime. As a kid I had an electric RC plane that barely made it off the ground. Now you can get pretty cheap aerobatic RC planes that easily compete with gasoline powered models. Battery powered screwdrivers used to be incredibly underpowered. Now I have a very decent battery powered rotary hammer... https://cdn.arstechnica.net/wp-content/uploads/2021/05/bnef_e_density-1440x810.jpg https://cdn.arstechnica.net/wp-content/uploads/2021/05/bnef_...