Onyx
Strata 
Ideal for use in
- Class 8 Trucks
- Off-Highway Equipment
- Specialty Vehicles
Onyx Strata
Engineered for tight spaces where space is limited but the need for energy is high, Onyx Strata powers zero-emission performance for Class 8 trucks, industrial equipment, and specialty vehicles.
The Proterra Onyx Strata features a compact battery configuration designed for space efficiency, offering seamless installation and integration for new builds and upfitted vehicles.
The Onyx Strata series offers multiple space-efficient solutions for vehicles and equipment with tight packaging constraints and high performance demands.
Onyx Strata
H2-23
Our highest energy pack, perfect for large enclosures, designed to fit within frame rails
Energy
130 kWh
Voltage
666 V
Length
2156mm
Width
620mm
Height
340mm
Weight
704kg
Onyx Strata
S2-15
High-density packaging. Ideal for large engine bays of on- or off-highway applications
Energy
123 / 127 kWh
Voltage
669 / 652V
Length
1475mm
Width
860mm
Height
345mm
Weight
709kg
Onyx Strata
H4-15
Flexible design fits between frame rails or in engine bays of on- or off-road vehicles
Energy
82 / 85 kWh
Voltage
669 / 652 V
Length
846mm
Width
615mm
Height
708mm
Weight
470 / 462 kg
Onyx Strata
H2-21
A narrow form factor, high energy dense pack great for transit and bus applications.
Energy
119 kWh
Voltage
608 V
Length
1980 mm
Width
620 mm
Height
340 mm
Weight
653 kg
Onyx Strata
H2-15
Flexible design fits between frame rails or in engine bays of on- or off-road vehicles
Energy
85 kWh
Voltage
652 V
Length
1452 mm
Width
620 mm
Height
340 mm
Weight
501 kg
Onyx Strata
H2-9
Compact design fits between frame rails or in engine bays of on- or off-road vehicles
Energy
51 kWh
Voltage
391 V
Length
924 mm
Width
620 mm
Height
340 mm
Weight
348 kg
The Onyx battery delivers confidence, performance, and efficiency.
Space-Optimized Design
With volumetric density reaching 300 Wh/L, Onyx Strata maximizes energy storage in confined spaces without compromising vehicle design.
Flexible Integration
Compact, modular packs allow for creative placement in space-restricted areas, preserving ground clearance and operational capacity.
Proven Safety
Every Proterra battery is tested and certified to meet or exceed UN38.3, ECE R100.03, and SAE J2929 safety protocols for heavy-duty applications.
Rugged Durability
We need to update this description: Built with ruggedized aluminum housings that shield each pack from impact, vibration, and extreme environments, these batteries maintain reliable performance.
Operational Efficiency
Exceeding 178 Wh/kg gravimetric energy density, our batteries extend range and increase payload capacity without compromising performance.
American Innovation
Designed in California. Manufactured in South Carolina. Creating batteries for everything from school buses to heavy-duty port equipment nationwide. Buy America and BABA compliant.
Interested in integrating the Onyx Strata?
We're ready to power your shift to zero emissions.
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