For professionals in the world of digital cinema and broadcast production, power is more than a convenience — it’s the backbone of performance. The Rolux 28.8V 302Wh USB-C Port B-Mount Lithium Battery redefines efficiency and flexibility for high-voltage applications, delivering robust output, multiple connectivity options, and smart charging technology in a durable, professional-grade design.
⚡ High-Voltage Power, Unmatched Capacity
With a rated voltage of 28.8V and a capacity of 302Wh (10,500mAh), this Rolux B-Mount battery provides a reliable energy source for demanding cinema cameras, professional lights, and broadcast equipment. Its maximum output of 10A ensures steady, high-power performance for advanced systems such as ARRI Alexa 35 and other B-Mount-compatible devices that require 24–30V power input.
🔋 Multiple Output Options for Total Flexibility
The Rolux 28.8V 302Wh battery is designed with versatility at its core. It features:
- D-Tap Output (16.8V / 3A Max) – ideal for powering accessories like monitors, wireless transmitters, and focus systems.
- USB-A Output (5V / 2.1A Max) – perfect for mobile devices and small on-set tools.
- USB-C Output (up to 65W) – supports PD2.0 and PD3.0 protocols, delivering power for laptops, cameras, and other USB-C devices.
This multi-port design makes the Rolux B-Mount battery a true all-in-one power hub for modern production workflows.
🔌 Fast USB-C Charging and Power Delivery
The integrated USB-C input/output offers 65W max charging capability, allowing the battery to fully recharge in about 6 hours. This bidirectional USB-C port means you can charge the battery or use it as a power bank for compatible equipment, making it an invaluable tool for travel and on-location shoots where flexibility and speed matter most.
🧱 Professional Build and Design
Despite its high energy density, the Rolux 28.8V 302Wh battery maintains a compact form factor — 138 × 80 × 90mm — and weighs 1,637g, providing the ideal balance between power and portability. Its B-Mount design ensures secure connection and compatibility with the latest camera systems while supporting the higher current demands of next-generation devices.
🌡️ Intelligent Safety and Performance
Built for reliability, the battery operates efficiently within a wide temperature range (0°C to 40°C). Its smart battery management system (BMS) monitors voltage, current, and temperature in real time to prevent overcharging, over-discharging, overheating, and short circuits. This ensures long-term stability and safety for both the battery and connected devices.
💡 Key Specifications
- Rated Voltage: 28.8V
- Capacity: 10,500mAh / 302Wh
- Maximum Output: 10A (28.8V)
- D-Tap Output: 16.8V / 3A Max
- USB-A Output: 5V / 2.1A Max
- USB-C Input/Output: 65W Max (PD2.0 / PD3.0)
- Charging Time: ≈6 Hours via USB-C
- Dimensions: 138 × 80 × 90mm
- Weight: 1,637g
🚀 Power for the Next Generation of Production
The Rolux 28.8V 302Wh USB-C Port B-Mount Lithium Battery is engineered for professionals who demand intelligent, adaptable, and high-performance power solutions. With its combination of multi-port connectivity, high-capacity design, and fast USB-C charging, it’s the perfect companion for modern cinema equipment and mobile production teams who can’t afford downtime.
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