Innovation
Innovation
& Technology
As a U.S.-based leader in zero-emission battery technology, we build solutions that deliver superior performance and reliability over long distances and in the toughest conditions.
Designed at our California headquarters and assembled in our South Carolina manufacturing facility, every Proterra solution is developed by team members with deep expertise in battery engineering.
We craft each pack from the cell level up, incorporating advanced module and pack technology designs to meet the key requirements of our heavy-duty commercial customers. The result? Battery systems that deliver reliable, safe, and efficient power for commercial and industrial applications.
Purpose-Built for Superior Performance
Module Assembly
Battery modules are the building blocks of energy storage, carefully structured and electrically interconnected to optimize performance. This design weaves together small cells into a precise configuration that maximizes efficiency, safety, and reliability. These modules are produced on an advanced US manufacturing line.
Pack Assembly
The battery pack is created by integrating the building blocks into a complete system, incorporating the necessary structure, thermal management, and safety features to ensure reliable performance throughout its lifespan.
Battery Management
Advanced sensors are integrated at the module level to monitor voltage, temperature, humidity, and more — ensuring peak battery health and performance. Proterra’s packs integrate all necessary electronics, eliminating the need for an external box to create energy systems — it’s all built into the pack.
Functional Testing
Packs and modules undergo rigorous electrical, thermal, and mechanical tests to verify safety and performance.
Batteries
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Onyx Slate
A traditional battery configuration designed for larger commercial vehicles, offering flexible installation options either below or within frame rails.
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Onyx Strata
A compact battery configuration that maximizes energy storage in tight spaces, seamlessly integrating into on- and off-highway vehicles.
Not sure which battery works for you?
We design our batteries to meet the structural configurations and performance demands of heavy-duty on- and off-road vehicles.
Flexible. Efficient. Proven.
Our modular battery packs feature scalable designs, making them easy to customize to fit a wide range of commercial and industrial vehicles.
Smart
Active thermal management software optimizes charging and operation, while embedded sensors provide real-time monitoring and diagnostics.
Safe & Durable
Built with strong, lightweight materials, our batteries perform in the toughest environments. Integrated safety systems and rigorous testing ensure reliable operation and superior safety.
Efficient
Compact design. Maximum power. Our batteries feature industry-leading energy density by volume and mass, delivering extended range and consistent performance — even in extreme climates.
Proterra Battery Applications
Heavy-Duty Trucks
Designed for heavy-duty Class 8 trucks, our high-energy batteries deliver superior performance and long-range reliability.
Commercial Transit
Our scalable solutions meet the unique range and capacity needs of commercial fleets, ensuring seamless operation across urban and regional routes.
School Buses
With optimal power and minimal maintenance requirements, our long-lasting battery solutions keep school buses running safely and dependably.
Off-Highway Equipment
Our durable batteries provide long-lasting power to keep heavy equipment running strong in demanding environments.
Specialty Vehicles
Reliable and efficient, our batteries power fire trucks, ambulances, and refuse fleets so they can perform when they’re needed most.
Medium-Duty Vehicles
Our batteries deliver consistent performance while reducing operating costs, lowering emissions, and promoting healthier communities.