As cinema production continues to evolve, so does the demand for more intelligent, higher-voltage, and longer-lasting power solutions. The Rolux 300W B Mount Battery delivers exactly that—offering a seamless blend of capacity, flexibility, and B-mount reliability to meet the expectations of modern digital cinema gear.
Built for the Big Leagues
With a 302.4Wh capacity and 28.8V nominal output, this battery is designed to power energy-hungry equipment such as high-end cinema cameras, LED panels, and large format monitors. It provides a maximum continuous output of 10A, offering stable, high-voltage delivery for long production hours.
Whether you’re running an ARRI ALEXA 35, large Cine LED systems, or professional camera carts, the Rolux 300W B Mount Battery keeps your rig alive and your workflow uninterrupted.
Versatile Output Options
Powering your main camera isn’t enough anymore—you need to support accessories, monitors, wireless systems, and more. That’s why this battery is packed with multiple output interfaces:
- D-Tap Output: 16.8V/3A for powering on-camera lights, follow focus systems, or wireless transmitters.
- USB-A Output: 5V/2.1A to support traditional devices like phones, audio recorders, or compact gear.
- USB-C Output: PD-compatible with multiple voltages (5V to 20V up to 3.25A), offering fast charging for laptops, tablets, and other USB-C powered gear.
The USB-C port also doubles as a 65W input, enabling you to charge the battery directly via a USB-C power source—a highly flexible option when you’re away from your main charging station.
Efficient Charging for Non-Stop Shoots
When production schedules are tight, charging time matters. The Rolux 300W B Mount Battery can be:
- Fully recharged via USB-C in 6 hours, great for remote or mobile workflows.
- Charged in just 4 hours using the Rolux 4KBM Charger, ideal for studio setups or prep days.
This dual-option charging system ensures you’re never left without power, no matter where you are.
Precision Engineering for the B-Mount Standard
Designed specifically for the B-Mount system, this battery brings all the benefits of bidirectional communication and higher voltage handling. With a full charge voltage of 33.6V and a cut-off at 22V, it ensures optimal performance and longevity for your power-hungry gear.
Plus, with its solid build and smart dimensions (138mm x 80mm x 90mm), and weight of 1637g, it offers a perfect balance of sturdiness and manageability for professional use.
Conclusion
The Rolux 300W B Mount Battery isn’t just a battery—it’s a powerhouse tailored for high-end cinema production. With high voltage delivery, fast and flexible charging, and multi-output versatility, it’s the ideal companion for DPs, gaffers, and ACs working in demanding environments.
If you’re ready to elevate your power setup to match the pace of modern filmmaking, Rolux has delivered the battery that truly belongs in your kit.