Denchi Group, a UK-based leader in mission-critical battery solutions, supplies the BB-2590 Smart Battery, a rugged Level 3 lithium-ion power source engineered to meet the most demanding requirements of military and aerospace operations.
With over two decades of experience providing advanced power solutions to the UK Ministry of Defence and leading primes such as BAE Systems, Lockheed Martin, General Dynamics, Leonardo, and Thales, Denchi has built a strong reputation for delivering reliable, high-performance energy systems for defence applications across land, sea, and air domains.
Advanced Smart Power Technology
The BB-2590 integrates an SMBus communication interface, enabling seamless interaction with host equipment and intelligent chargers. This smart functionality provides real-time monitoring of state-of-charge and system status, supporting flexible deployment, safeguarding against misuse, and reducing through-life costs.
The battery offers dual voltage outputs (14.4 V and 28.8 V) with capacities of 21 Ah and 10.5 Ah respectively, delivering up to 302.4 Wh of energy. Designed with NMC (Nickel-Manganese-Cobalt) chemistry, it provides a balance of high energy density, long service life, and stable performance across extreme environments.
Ruggedized for Operational Demands
Constructed as a waterproof tactical battery pack, the BB-2590 is built to endure harsh field conditions while maintaining dependable performance. It delivers maximum discharge currents of up to 20 A and operates reliably within a wide temperature range of –40 °C to +60 °C.
Denchi’s in-house testing facilities replicate military and aerospace stress conditions, including shock, vibration, thermal cycling, altitude exposure, and electrical stress testing. This ensures the BB-2590 achieves compliance with both civil and military standards, providing operators with assured performance in critical missions.
Key Features
Dual output modes: 12 V (10–16.4 V) and 24 V (20–32.8 V)- SMBus smart interface for communication and intelligent charging
- Rugged waterproof design for demanding tactical environments
- High energy density (302.4 Wh) with low self-discharge during storage
- Compact and lightweight, supporting easy system integration
- Designed and manufactured in the UK with ISO-certified processes
Proven Defence Applications
The BB-2590 is deployed in a wide range of mission-critical defence technologies, including:
- Communications systems such as military radios and transceivers
- Unmanned platforms including UAVs and ground robotics
- Sensor systems for reconnaissance and situational awareness
- Airborne and marine systems requiring lightweight, reliable backup power
As with all Denchi products, the BB-2590 benefits from the company’s heritage in supporting programmes such as the Bowman radio platform, where Denchi has provided batteries, chargers, and through-life support for more than 20 years.





