As modern cinema cameras and lighting systems continue to push power limits, filmmakers need batteries that can keep up without compromise. The Rolux 300W B-Mount Battery is designed precisely for these high-demand environments, delivering stable, high-voltage output, fast charging options, and versatile connectivity in a compact professional form factor.
Built for High-Power Cinema Systems
With a massive 302.4Wh capacity (10,500mAh), this battery is engineered for extended runtimes on power-hungry equipment. The 28.8V B-Mount output delivers up to 10A, making it ideal for large digital cinema cameras, broadcast rigs, and high-output LED lighting that require consistent, high-voltage power.
Unlike lower-voltage batteries that struggle under load, the Rolux 300W maintains performance stability even during peak power draw, ensuring your setup runs smoothly on set.
Versatile Outputs for Multi-Device Workflows
The Rolux 300W B-Mount Battery is not limited to camera power alone. It offers multiple outputs to support a complete production ecosystem:
- B-Mount Output: 28.8V / 10A (Max.) for professional cinema gear
- D-Tap Output: 16.8V / 3A (Max.) for accessories like monitors and wireless systems
- USB-A Output: 5V / 2.1A for small devices
- USB-C Output: Up to 65W, supporting 5V to 20V fast charging for laptops, tablets, and controllers
This flexibility allows one battery to power both core equipment and essential accessories, reducing the need for multiple power sources on set.
Fast and Efficient Charging Options
Time is critical in production, and Rolux addresses this with dual charging solutions:
- USB-C Charging: Fully charges in approximately 6 hours
- 4KBM Charger: Reduces charging time to just 4 hours
With a 33.6V full charge voltage and a 22V cut-off voltage, the battery is optimized for both safety and longevity, making it a dependable long-term investment for professional users.
Compact Design with Professional Durability
Despite its high capacity and output, the Rolux 300W B-Mount Battery remains practical for on-set use:
- Dimensions: 138 × 88 × 90 mm
- Weight: 1637g
The solid build quality and balanced weight distribution make it suitable for handheld, tripod, and studio configurations without unnecessary bulk.
Ideal Applications
The Rolux 300W B-Mount Battery is an excellent choice for:
- Digital cinema cameras requiring 28.8V power
- High-output LED lighting systems
- Broadcast and studio production setups
- Professional filmmakers seeking fewer battery swaps and longer runtimes
Final Thoughts
The Rolux 300W B-Mount Battery is a powerful, reliable solution for professionals who cannot afford downtime. With high-capacity energy storage, robust voltage output, and versatile charging and power options, it stands out as a dependable backbone for modern cinema and broadcast production.