Denchi Group stands at the forefront of developing specialized battery technologies tailored for commercial and military UAVs (unmanned aerial vehicles) and other unmanned systems. With a robust history spanning over two decades, we have been instrumental in supporting operations across various terrains—air, sea, and land. Our strong partnerships with the UK Ministry of Defense and industry giants like BAE systems, Lockheed Martin, and General Dynamics further enhance our capabilities.
Our Specialization
We excel in crafting both standard and customized battery solutions designed for demanding unmanned and robotic vehicle applications across all environments. Our products are engineered to endure extreme shock and vibration, suitable for tracked UGVs, and can function effectively in unpressurized drone airframes at altitudes reaching 16,000 feet. A notable achievement includes our selection to supply the lithium-ion emergency avionics backup battery for Thales’ Watchkeeper UAV.
Our in-house engineering teams bring extensive expertise across various disciplines, including electrical and electronics hardware, software development, mechanical engineering, and systems integration.
Custom Battery and Charger Solutions for UAVs and UxVs
We offer tailored battery solutions that meet your specific needs,collaborating closely with your team throughout the project lifecycle—from initial requirements gathering to mass production. Our expertise spans various chemistries and technologies, including rechargeable lithium-ion and lithium polymer.
We also focus on developing sophisticated custom battery management systems that include critical safety features such as segmented architectures and complete dialog protocols for seamless integration into your platforms.
Our manufacturing and testing operations are conducted in our UK facility, which spans 600 square meters, allowing us to accommodate both high and low production volumes. Each battery undergoes stringent testing with advanced equipment, covering essential tests such as shock, vibration, thermal, electrical, altitude, cell penetration, over-temperature, and short-circuit assessments.
Commercial Off-The-Shelf (COTS) Products
We have engineered a selection of off-the-shelf battery products designed to deliver exceptional reliability in the demanding environments faced by UAVs and unmanned systems.
6T Lithium-Ion battery
specifically engineered for armored vehicles, the 6T Lithium-Ion Battery is perfect for UGVs, utilizing advanced high-power lithium-ion cells that boast remarkable energy density. It features two charging modes: Integrated Charger,which manages charging from a regulated current source,and Bypass Mode,allowing for direct and rapid cell charging.
- Voltage: 21 – 28.7V
- Capacity: 85 Ah
- energy: 2.142 KWh
BB-2590 Smart Battery
the Denchi BB-2590 is a Level 3 smart lithium-ion battery, ideal for high-demand drone and robotics applications, and is equivalent to the military battery NSN 6140-01-490-4316. It provides dual outputs of 14.4V or 28.8V and features a rugged waterproof design, utilizing an SMBus interface for communication with the host platform and managing charging from any Level 3 smart charger.
- Voltage: 20-32.8V (24V mode) and 10–16.4V (12V mode)
- Capacity: 10.5Ah (28.8V nominal), 21.0Ah (14.4V nominal)
- Energy Density: 302.4 Wh
Sparrowhawk Battery
Our lightweight Sparrowhawk lithium-ion batteries for UAVs are engineered to power electronic payloads and provide emergency power to controls in the event of main engine failure. These compact, high-capacity units come equipped with internal heating and a suite of safety features, including health monitoring and protections against overcharging, voltage fluctuations, and temperature extremes.
- Voltage Range: 18-29.4V
- Capacity: 48Ah
- Specific Energy: 145 Wh/kg
Auxiliary Battery for Small Military Vehicles
The SMV Auxiliary Battery is a compact and lightweight solution designed to provide backup power and silent operation capabilities,offering performance that significantly surpasses traditional led-acid batteries. This high-capacity battery includes integrated control electronics for optimal efficiency.
- Voltage: 25.9 V nominal
- capacity: 24.8 Ah nominal
- Specific Energy: approximately 139 Wh/kg
