Auxiliary Power System
An automotive-grade generator replacement for commercial vehicles and recreational vehicles.
Developed on a purpose-built 400V automotive architecture, the Auxiliary Power System delivers silent, zero-emission stationary power—eliminating fuel burn, noise, and maintenance without compromise.
Explore the Power System
Made in America
Built by the same engineers behind Harbinger’s electric vehicles, the Auxiliary Power System is fully integrated and engineered to automotive standards. Battery, inverter, controls, and thermal management are designed to work as one—delivering reliable power in real-world conditions.
Automotive-Grade Power. American Made Quality.
Time to re-think your power
For work trucks & recreational vehicles
Traditional Generator
Loud, disruptive noise
Exhaust, emissions, and fumes
High fuel consumption
Frequent maintenance and service
Unreliable starts
Inconsistent quality power
Auxiliary Power System
Quiet electric operation
Zero emissions
No fuel required
Minimal maintenance by design
Instant, reliable power on demand
High quality AC power, pure sine wave
THE ALL IN ONE POWER SYSTEM
16 kWh of fully usable energy, enough to power a worksite or recreational vehicle quietly, cleanly, and reliably. The Auxiliary Power System combines automotive-grade engineering with industrial durability to deliver a true generator replacement.
Learn More
Automotive-Grade
Batteries
Built using EV-grade Panasonic NCMA cells—proven across millions of electric vehicle miles. Higher energy density, longer service life, and higher discharge rates.
The same standards as modern EVs.
High-Energy
Density Power
16 kWh of fully usable capacity. Run multiple high-load systems simultaneously—HVAC, tools, and appliances without voltage sag or capacity limitations.
More power.
Less compromise.
Industrial
Durability
The die-cast aluminum enclosure is engineered to withstand heavy vibration, moisture, and dust, maintaining consistent performance in demanding environments.
Tough where it counts.
More than a Battery
Intelligent technology that works in the background
Active Health
Monitoring
Continuously monitors temperature, cell conditions, and humidity -- automatically adjusting system behavior to maintain optimal performance and long term reliability.
Dual-System
Management
Seamlessly integrates high- and low-voltage systems to provide uninterrupted power. Power transitions are managed automatically, delivering reliable energy without manual load management.
Advanced Thermal
Control
Active heating and cooling maintain optimal operating conditions to preserve battery life and system performance. Consistent output across a wide range of environments.
Integrated Power
System Design
Every component of the Auxiliary Power System serves a specific purpose—engineered to deliver industrial-grade reliability for demanding mobile applications.
Applications
For Work Trucks
- Zero fuel burn for HVAC and auxiliary electrical loads
- Complies with idle-reduction and anti-idling mandates
- Operates quietly on jobsites and residential routes
- Enables overnight cab climate control without engine operation
- Can be fitted to ICE or electric vehicles
For Recreational Vehicles
- Run dual air conditioners, induction cooktop, lighting, and onboard appliances simultaneously
- Zero emissions—camp anywhere
- Integrates with solar systems for off-grid operation
- Featured in the Airstream Trade Wind™ 27FB Trailer
Features and Specifications
| Nominal Voltage Range | 240 V - 400 V |
|---|---|
| Total Energy | 18.3 kWh |
| Usable Energy | 16.0 kWh |
| Enclosure Unit Dimensions (L × W × H) | 36.3 × 27.6 × 10.2 in / 921 × 702 × 259 mm |
| Thermal System Dimensions (L × W × H) | 22.4 × 6.9 × 14.9 in / 570 × 174 × 378 mm |
| Mass | 148 kg / 326 lbs |
| Peak Output Power | 6 kW |
| Continuous Output Power | 6 kW |
| Cell Chemistry | NCMA |
