Tesla Semi battery sizes confirmed: 822 kWh and 548 kWh officially revealed
California’s Air Resources Board has officially confirmed the Tesla Semi’s battery capacities through a regulatory filing — and they’re smaller than what Elon Musk originally suggested back in 2022.
The CARB Executive Order A-374-0095, signed on April 15, reveals that the Long Range Semi carries an 822 kWh usable battery pack while the Standard Range comes in at 548 kWh, both using NCMA lithium-ion chemistry with Tesla’s 4680 cells.
