After years of speculation and debate surrounding the battery pack size of the Tesla Semi, the long-awaited secret has finally been revealed. Since its debut in 2017, Tesla has remained tight-lipped about the exact capacity of the Semi’s battery pack, offering two variants with ranges of 500 miles and 300 miles.
In a recent regulatory filing with the California Air Resources Board, Tesla disclosed the precise capacities of both versions of the Semi. The Long Range (500-mile) Tesla Semi boasts a usable battery capacity of 822.029 kWh, while the Standard Range (300-mile) variant is equipped with a 548.09 kWh battery pack.
It is important to note that the term “usable” capacity refers to the maximum percentage to which a battery can be charged while maintaining optimal battery health throughout its lifecycle. The filing also revealed that Tesla has employed NCMA (Nickel-Cobalt-Manganese-Aluminum) batteries with the 4680 form-factor cells in the Tesla Semi.
With the recent commencement of volume production of the Tesla Semi at its Gigafactory in Sparks, Nevada, this battery pack information holds particular significance for potential customers of the electric truck. The Tesla Semi Long Range offers a range of 500 miles at a gross combination weight of 82,000 lbs and boasts a peak charging speed of 1,200 kW. On the other hand, the Tesla Semi Standard Range provides a range of 325 miles at the same weight and also features a peak charging speed of 1,200 kW.
As Tesla continues to make strides in the electric vehicle industry, the revelation of the Tesla Semi’s battery specifications further solidifies the company’s position as a leader in sustainable transportation. With the use of cutting-edge technology and innovative battery solutions, Tesla is setting new standards for efficiency and performance in the commercial trucking sector. Stay tuned for more updates on Tesla and its groundbreaking advancements in the automotive industry.

