For high-end cinema cameras and production equipment, a power source must deliver not only capacity but also stability and versatility. The Rolux 300W B Mount Battery is built for demanding professional environments, offering multiple outputs, fast charging options, and robust performance in a sleek form factor.
Powerful Capacity for Extended Shoots
With 10,500mAh (302.4Wh) capacity, this battery ensures your B-mount compatible cameras and gear remain powered for extended periods without frequent swaps. Operating at 28.8V with up to 10A output, it provides steady, high-capacity energy delivery for large-format cameras and power-intensive accessories.
Multiple Output Interfaces
The Rolux 300W B Mount Battery is designed with flexible connectivity to power a range of devices:
- D-TAP output: 16.8V/3A (max) for monitors, lights, or wireless systems.
- USB-A output: 5V/2.1A for small electronics and mobile devices.
- USB-C output: Supports PD fast charging with profiles including 5V/3A, 9V/3A, 12V/3A, 15V/3A, and 20V/3.25A for laptops, tablets, and other PD-compatible devices.
Fast and Flexible Charging Options
Whether using the USB-C port or a dedicated 4KBM charger, you can recharge quickly. USB-C charging takes about 6 hours, while the 4KBM charger reduces this to 4 hours—essential for fast turnarounds on busy sets.
Professional Voltage Management
Operating between 33.6V when full and a cut-off voltage of 22V, the battery ensures optimal safety and performance, preventing over-discharge while maintaining stable output.
Durable Build for On-Set Reliability
Weighing 1637g and measuring 138mm x 80mm x 90mm, this battery balances high capacity with portability. Its sturdy casing is built to handle the rigors of on-location and studio work, ensuring long-term durability.
Why Choose the Rolux 300W B Mount Battery?
This battery is an excellent choice for cinematographers and crews who require:
- High voltage stability for large-format cinema gear
- Multiple output options for powering accessories simultaneously
- Fast charging for continuous shooting schedules
- Reliable construction for demanding production environments
Whether powering an ARRI ALEXA LF or running multiple on-set devices, the Rolux 300W B Mount Battery delivers the performance professionals can trust.