800 Volt Polestar 3: faster charging thanks to new architecture and innovative software

• New 800 Volt architecture enables peak DC charging rate up to 350 kW
• Polestar 3 can now charge 10–80% in as little as 22 minutes
• Cutting-edge software maximises charging performance in all conditions

Upgraded Polestar 3 enables significantly faster DC charging and greater performance thanks to the combination of new 800 Volt electrical architecture and innovative Breathe Charge software. This intelligent, adaptive battery software allows Polestar 3 to charge 10–80% in as little as 22 minutes.

Michael Lohscheller, Polestar’s CEO, says: “The extensive upgrade to an 800 Volt electrical architecture, coupled with cutting-edge battery software, delivers true added value and usability to Polestar 3 drivers thanks to faster charging that is among the best in its segment.”

New 800 Volt architecture an extensive upgrade

The 800 Volt technology introduces a major system-level upgrade – a change that fundamentally alters performance, electrical, and thermal characteristics. A significant number of the components, including new batteries, motors, inverters, cable harnesses and their routing, have been changed with the new architecture.

Lower energy losses at higher voltage improve overall system efficiency, reducing thermal stress on components and minimising the need for oversized cabling. The increase to 800 Volt enables faster charging speeds with a higher peak rate of up to 350 kW, supporting long-distance driving capabilities with less time spent at the plug.

Unlocking charge speed with Breathe Charge

Real-world fast charging in Polestar 3 is amplified by Breathe Charge, an innovative adaptive battery software that uses a cutting-edge simulation of the battery in the vehicle to maximise DC fast charging performance. Deployed within the Volvo Cars developed SPA2 platform on which the Polestar 3 is based, the software continuously monitors the battery’s condition in real time to make optimal use of the battery chemistry and automatically adjusts charging speed moment by moment. This allows for faster charging in all conditions while simultaneously protecting and preserving long-term battery health.

In Polestar 3, the result is ultrafast, reliable charging: 10–80% takes as little as 22 minutes at compatible 350 kW DC chargers, and a brief 10-minute stop can deliver as much as up to 38% more added range compared to without the Breathe Charge software.

Dr Yan Zhao, CEO at Breathe Battery Technologies, says: “The key benefit to Polestar 3 drivers with Breathe Charge is that it improves charging performance and consistency in all real-world conditions – notably also in cool weather circumstances. Testing data shows that our software enables Polestar 3 drivers to add as much range during a 10-minute charging session at low temperatures as they would charging without Breathe Charge in an optimal temperature range.”

Ends.

About Breathe Battery Technologies

Breathe Battery Technologies (“Breathe”) is the technology partner of choice for world-class organisations developing battery-powered experiences.

Breathe focuses on three critical areas: performance (maximum energy density, charging, and lifetime), development efficiency (accelerated innovation, resource-efficient validation), and economics (delivering more performance at lower cost across the battery lifecycle).

Through solutions spanning cell design, chemistry optimisation, cell prototyping, validation and battery system control, Breathe enables companies to do more with less. Since spinning out of Imperial College London in 2019, Breathe has partnered with iconic brands including Volvo Cars, OPPO, Polestar, Bang & Olufsen, and more, enabling software-defined products to deliver exceptional user experiences.

For further information please contact: Breathe Media Relations / +44 (0)2045 295647 / media@breathebatteries.com

About Polestar

Polestar (Nasdaq: PSNY) is the Swedish electric performance car brand with a focus on uncompromised design and innovation, and the ambition to accelerate the change towards a sustainable future. Headquartered in Gothenburg, Sweden, its cars are available in 28 markets globally across North America, Europe and Asia Pacific.

Polestar has four models in its line-up: Polestar 2, Polestar 3, Polestar 4, and Polestar 5. Planned models include the Polestar 7 compact SUV (to be introduced in 2028) and the Polestar 6 roadster. With its vehicles currently manufactured on two continents, North America and Asia, Polestar plans to diversify its manufacturing footprint further, with production of Polestar 7 planned in Europe.

Polestar has an unwavering commitment to sustainability and has set an ambitious roadmap to reach its climate targets: halve greenhouse gas emissions by 2030 per-vehicle-sold and become climate-neutral across its value chain by 2040. Polestar’s comprehensive sustainability strategy covers the four areas of Climate, Transparency, Circularity, and Inclusion.

Forward-Looking Statements

This press release contains statements that are not historical facts, but rather forward-looking statements within the meaning of Private Securities Litigation Reform Act of 1995. Such forward-looking statements include those that address activities, events or developments that Polestar or its management believes or anticipates may occur in the future. All forward-looking statements are based upon, as applicable, our current expectations, various assumptions and data available from third parties. Our expectations and assumptions are expressed in good faith and we believe there is a reasonable basis for them. However, there can be no assurance that such forward-looking statements will materialize or prove to be correct as forward-looking statements are inherently subject to known and unknown risks, uncertainties and other factors which may cause actual future results, performance or achievements to differ materially from the future results, performance or achievements expressed in or implied by such forward-looking statements. Numerous risks, uncertainties and other factors may cause actual results to differ materially from those set out in the forward-looking statements, including those risks and uncertainties set forth in the sections entitled “Risk Factors” and “Cautionary Note Regarding Forward-Looking Statements” in Polestar’s Form 20-F, and other documents filed, or to be filed, with the U.S. Securities and Exchange Commission by Polestar. For any forward-looking statements contained in this or any other document, we claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995, and we assume no obligation to update publicly or revise any such statements in light of new information or future events, except as required by law.