UAV power supply systems

UAV power supply systems

UAV power supply systems

Dron power systems for UAVs are based on low-temperature fuel cells with proton-exchange membranes. Mounting fuel cells on unmanned aerial vehicles instead of conventional batteries increases the flight endurance, payload weight, robustness, expands the startup and operation temperature range by bringing the lower limit to -400С. As compared to internal combustion engines, fuel cell systems are noiseless, show no vibrations, can operate at low temperatures, are tough to detect in flight, do not produce harmful emissions and allow efficiently completing multiple tasks from video surveillance to delivery of payload.

These systems utilize state-of-the-art design solutions and materials ensuring the maximum possible specific energy density for the specified capacity.

Key advantages of fuel cells as compared to conventional solutions:

  • Increased energy density ( from 500 to 1000 W*h/kg)
  • Expanded range of operational temperatures (-400С / +400С)
  • No thermal spot, noise and vibration

High reliability at cold start

System components

  • Fuel cell battery
  • Li-Po buffer battery to cover short-term peak loads
  • Electronic control system
  • Fuel system comprising a cylinder with compressed hydrogen or hard source of hydrogen

    The fuel system applies high-strength light cylinders and reducers to ensure maximum stock of compressed hydrogen onboard. It is allowed to use cylinders of various volumes (from 0.5 to 25 l) with reducers ensuring the required hydrogen flow rate.


Rated power, kW

0.2 - 2.5

Peak power, kW

2.0 - 6.0


Hydrogen and Airborne Oxygen

Operating temperature, 0С 

from -40 to +40

Service Pressure of Cylinder, Bar


FC Hydrogen Pressure, Bar 

0.5 - 0.6


Air (integrated cooling fan)

Full System Weight, kg/kW*h


System Service Life, hours

not less 1000

Filling stations

In addition to FC systems, filling stations are supplied. There are several design options for filling stations taking into account the requirements to performance, climatic conditions and ability of independent operation.