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CARB Filing Confirms Tesla Semi Battery Sizes at 822 kWh and 548 kWh as Production Ramps

Regulatory sign-off gives buyers firm numbers for range, power and charging.

Overview

  • California’s air regulator published an executive order that lists the Tesla Semi’s usable battery packs at 822 kWh for the Long Range and 548 kWh for the Standard Range.
  • The filing specifies NCMA lithium‑ion cells and distinct motor outputs, with 800 kW for the Long Range version and 525 kW for the Standard Range.
  • Those capacities align with Tesla’s stated efficiency of about 1.7 kWh per mile, supporting roughly 500 miles for Long Range and about 325 miles for Standard Range under full load.
  • Tesla has begun high‑volume production at Gigafactory Nevada with on‑site 4680 cell output and a planned gradual ramp toward a long‑term goal of about 50,000 trucks per year.
  • Both trims can charge at up to 1.2 megawatts using an MCS 3.2 connector, and Tesla’s Megacharger can add about 60% charge in around 30 minutes, while early fleet orders and programs like California’s HVIP offer buyers up to $330,000 per truck.