• Proterra
    Proterra launches H2-23 battery pack for heavy-duty trucks at ACT Expo

    Proterra unveils new battery pack for heavy-duty truck applications

    April 29, 2025
    Engineered for Class 8 trucks and other commercial applications, the new form factor expands Proterra's battery technology portfolio.

    Key takeaways:

    • Proterra has introduced the H2-23 battery pack for Class 8 trucks, enhancing its battery technology portfolio.
    • The H2-23 features a gravimetric density of 176 Wh/kg and a volumetric density of 270 Wh/L, providing up to 2MWh of energy capacity for heavy-duty applications.
    • The H2-23 supports zero-emission goals, offering reliable performance in challenging conditions.

    ANAHEIM, California—Proterra has announced the debut of its H2-23 battery pack as part of the company’s new Onyx Strata Series at ACT Expo. Engineered for Class 8 trucks and other commercial applications, the new form factor expands Proterra's battery technology portfolio.

    The H2-23 battery pack is Proterra’s most energy-dense battery pack with a gravimetric density of 176 Wh/kg and volumetric density of 270 Wh/L, enabling a 750kWh energy system for Class 8 applications and up to 2MWh of total system energy. Engineered to power and transform heavy-duty trucks, it provides a balance of range, durability, and performance. Additionally, the H2-23 battery pack is equipped with software that is compliant with SAE J1939 and ISO26262, as well as enhanced security features. 

    See also: Test your knowledge on heavy-duty truck history

    "The new H2-23 battery pack represents more than just a technological advancement. It embodies our renewed focus on powering the shift to a sustainable future," Claire McConnell, chief business officer at Proterra, said. "We've created a solution that delivers unparalleled performance even in the most challenging conditions. Every mile driven with our technology helps bring our customers closer to their zero-emission goals."

    Additionally, Proterra is unveiling its Onyx Series, which will include platforms from both its H- and S-Series.

    • Onyx Slate: Single-layer battery configurations optimized for longer, larger commercial vehicles, offering flexible installation below or within frame rails as well as roof-mounted options.
    • Onyx Strata: Compact battery configurations designed to maximize energy storage in tight spaces, seamlessly integrating into both on- and off-highway applications.
    About the Author

    Jenna Hume | Digital Editor

    Digital Editor Jenna Hume joined FleetOwner in November of 2o23 and previously worked as a writer in the gaming industry. She has a bachelor of fine arts degree in creative writing from Truman State University and a master of fine arts degree in writing from Lindenwood University. She is currently based in Missouri. 

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