The Rolux Grand III 250Wh Gold Mount Battery (USB-C) stands at the top of the Rolux Grand series, delivering unmatched capacity and power for high-end film production. Designed with professional-grade Samsung 35E 18650 lithium-ion cells, this battery provides extended runtime, advanced USB-C Power Delivery (PD) support, and multi-output flexibility — making it the perfect power solution for demanding camera systems, lights, and accessories on set.
⚡ Massive 250Wh Capacity, 220W Max Power
The Grand III offers an impressive 250Wh (17,250mAh) capacity with a 14.4V rated voltage, ensuring long-lasting performance for full-day shoots. With a maximum output of 220W, it effortlessly powers high-draw cinema cameras, large LED panels, field monitors, and wireless transmitters — all while maintaining stable and consistent voltage delivery.
Despite its high capacity, the Grand III maintains a balanced size of 127.3×82×101.9mm and a weight of 1.29kg, making it compact enough for professional rigs and mobile setups without sacrificing endurance.
🔌 All-in-One Power Solution
Engineered for versatility, the Grand III features a comprehensive set of output options designed for multi-device workflows:
- BP Interface Output: 14.4V / 15A (Max)
- D-Tap Output: 14.4V / 15A (Max)
- DC1 Output: 12V / 3A (Max)
- DC2 Output: 8.4V / 3A (Max)
- USB-A Output: 5V / 3A (Max)
- USB-C Output: Supports PD2.0 & PD3.0 / 100W (Max)
- USB-C Input: Supports PD2.0 & PD3.0 / 65W (Max)
This multi-interface configuration allows the Grand III to act as a central power hub on set — running your camera, monitor, and wireless gear while simultaneously charging a laptop or tablet.
⚙️ High-Speed USB-C Power Delivery
With 100W USB-C output and 65W USB-C input, the Grand III brings modern PD technology to the Gold Mount ecosystem. You can charge the battery directly via USB-C, eliminating the need for a bulky dedicated charger, or use it to power high-performance devices such as MacBooks, Blackmagic cameras, and monitors.
This dual PD capability makes the Grand III ideal for modern workflows that demand fast charging, flexible connectivity, and efficiency on the go.
🔋 Premium Samsung Lithium-Ion Cells
Powered by Samsung 35E 18650 cells, the Grand III ensures consistent voltage output, low heat generation, and extended life cycles. The intelligent protection circuitry safeguards against overvoltage, overcurrent, overheating, and short circuits — ensuring your gear remains protected at all times.
With a working temperature range of -10°C to 60°C, this battery performs reliably in challenging outdoor environments, from cold mountain shoots to hot studio conditions.
🧠 Built for Professional Reliability
The Rolux Grand III is not just about capacity — it’s about control, stability, and confidence on set. Its Gold Mount design ensures secure attachment to professional cameras and battery plates, while the advanced power management system guarantees steady performance even under heavy load conditions.
Whether used for feature films, documentaries, or live events, the Grand III provides the endurance and flexibility professionals need for uninterrupted production.
🏆 Key Highlights
- 250Wh high-capacity power for extended shoots
- 220W maximum output for demanding equipment
- USB-C PD 100W output / 65W input for fast charging
- Multiple power outputs: D-Tap, DC, USB-A, USB-C
- Durable Samsung 35E lithium-ion cells
- Safe operation from -10°C to 60°C
- Gold Mount compatibility for secure connection
🎬 Power That Matches Your Creativity
The Rolux Grand III 250Wh Gold Mount Battery (USB-C) redefines what professionals can expect from a high-capacity battery. Built to power your most demanding gear with precision and longevity, it’s the ultimate companion for filmmakers, cinematographers, and content creators who never settle for less than excellence.