Almost a decade after its first unveiling, the first production Tesla Semi last week officially rolled off a high-volume production line in Nevada.
Details of the Semi’s battery pack have now been revealed, coming in two specifications. According to a post Sawyer Merritt on X, the larger battery pack in the Long Range variant comes in at 822 kWh.
This pack uses Tesla’s 4680 cells with NMCA chemistry that can be charged at a rate of up to 1.2 MW using Tesla’s Megachargers, designed specifically for the Tesla Semi.
Customers will be able to choose the version that delivers up to over 800 km of range with a 37-tonne load on board, or a Standard Range variant with a smaller 548 kWh battery pack.
The smaller pack delivers over 500 km of range while still having the same charging specs as the Long Range variant.
Tesla will be producing these at the company’s recently opened Nevada Gigafactory. It is capable of producing up to 50,000 semi-trucks a year. This is a big step up from the pilot production and customer trials we have seen to date.
In recent years, there have been multiple sightings of the Tesla Semi being used by Walmart, retail store giant Costco and other logistics operators such as DHL.
Using the low-volume production method, Tesla Semi first began delivering in the US in 2022 as part of a trial with a large food and beverage customer, PepsiCo.
From that and other trials, Tesla took the learning and last year, unveiled an updated Semi design with several class-leading upgrades.
This included improved range and charging specs, which will be welcomed by fleet operators in the US and across the world, with the company already setting its eyes on Europe.
The improved range comes from improved aerodynamics for better efficiency. Along with that, the latest Semi has increased payload capacity and upgraded 1.2 MW charging speeds.
According to the 2025 trials with global logistics giant DHL, the Semi delivered over 800 km of range, with energy consumption as low as 1.06 kWh/km.
In recent weeks, hundreds of orders have been taken by the company, including one from a Californian logistics company, WattEV, which will deploy over 370 Semis in the coming years.
Last week, at ACT Expo in Las Vegas, Salim Youssefzadeh, WattEV’s CEO, said: “We selected the Tesla Semi based on cost, performance and availability after issuing a public request for proposals.”
We look forward to seeing more specs on Tesla Semi from real customers in the coming months as this could significantly change the game for zero-emission logistics, at a time when Diesel prices are hovering at an all-time high.
See The Driven’s detailed EV sales data here: Australian electric vehicle sales by month in 2026; by model and by brand.
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Riz is the founder of carloop based in Melbourne, specialising in Australian EV data, insight reports and trends. He is a mechanical engineer who spent the first 7 years of his career building transport infrastructure before starting carloop. He has a passion for cars, particularly EVs and wants to help reduce transport emissions in Australia. He currently drives a red Tesla Model 3.