ePropelled Expands Hercules Starter Generator Line for Multi-Domain Hybrid Missions

ePropelled has announced a significant 2026 expansion of its Hercules starter generator product line, extending the platform’s reach across uncrewed aerial, ground, and marine applications.

Image: ePropelled

The expanded lineup broadens the system’s power range — currently spanning approximately 500 watts to 12 kilowatts — with new performance tiers, improved thermal resilience for high-altitude and high-temperature environments, and reduced system weight across configurations.

The Hercules platform is designed to combine electric efficiency with combustion engine endurance, enabling longer mission duration and reduced acoustic signatures on hybrid-propulsion uncrewed systems. A defining feature of the line is its integration with ePropelled’s ePConnected ecosystem, which provides real-time monitoring of voltage, current, RPM, and temperature via CAN-based interfaces and open APIs. The 2026 expansion deepens that integration with the company’s electronic speed controllers and Intelligent Power Systems, with the stated aim of improving energy distribution and system-level reliability.

The expanded line also introduces new OEM customization options: configurable power outputs, flexible mounting and form factors, custom control interfaces, and application-specific power management for avionics and payload systems. ePropelled operates R&D, engineering, and manufacturing facilities in Laconia, N.H.; Coventry, U.K.; and Chennai, India — a footprint increasingly relevant to program managers evaluating sovereign and allied supply chain criteria.