Rolux Density III 290Wh USB-C V-Mount Battery – Maximum Power for Demanding Productions

In high-stakes production environments where continuous power is not a luxury but a necessity, only the most capable batteries can keep up. Enter the Rolux Density III — a 290Wh V-Mount battery designed for the most demanding gear, extended runtimes, and advanced multi-device setups.

Whether you’re running power-hungry cinema cameras, broadcast systems, or an entire rig of lights and accessories, the Density III ensures reliable, high-capacity performance without compromise.


Massive 290Wh Capacity. No Interruptions.

With 290Wh (14.4V / 20100mAh) of energy, the Density III is built for all-day shooting, powering 6K/8K cinema cameras, field monitors, wireless systems, and more — all from a single compact unit. It’s perfect for long-form content, multi-location shoots, and gear-intensive setups that require consistent, uninterrupted power.


Advanced Multi-Port Power Interface

The Density III isn’t just a high-capacity battery — it’s a complete power distribution hub, offering multiple professional-grade and consumer-friendly output options:

  • BP Electrodes: 14.4V / 15A out, 16.8V / 3A in
  • D-Tap (Bi-directional): 14.4V / 15A out, 16.8V / 3A in
  • USB-C PD: Up to 65W output (ideal for laptops, USB-C cameras, and tablets) & 45W input for rapid charging
  • USB-A: 5V / 2.1A output for smaller accessories

With these ports, the Density III can charge or power cine gear, mobile devices, field tools, and even laptops — all at once. It’s a central power station you can mount on your rig.


Built for the Field. Designed for Reality.

The Density III is engineered to perform in extreme environments, with a working temperature range of -10°C to 60°C, making it suitable for both arctic locations and desert landscapes. A charging range of 0°C to 40°C keeps it safe for fast top-ups under controlled conditions.

And despite its high capacity, the battery stays relatively compact with two size variants:

  • 120 × 91 × 90mm
  • 120 × 91 × 102mm
    With a weight of only 1380g–1390g, it balances power and portability perfectly for camera operators, DPs, and gaffers on the move.

Product Specifications

  • Model: Density III
  • Capacity: 290Wh / 20100mAh
  • Voltage: 14.4V
  • Mount Type: V-Mount
  • BP Electrodes: 14.4V 15A out / 16.8V 3A in
  • D-Tap: 14.4V 15A out / 16.8V 3A in (bi-directional)
  • USB-C: 65W out / 45W in
  • USB-A: 5V 2.1A out
  • Charging Temp: 0°C ~ 40°C
  • Operating Temp: -10°C ~ 60°C
  • Dimensions: 120×91×90mm / 120×91×102mm
  • Weight: 1380g / 1390g

When Power Matters Most

If your workflow demands maximum reliability and runtime, the Rolux Density III is your ultimate V-Mount solution. From full-day narrative shoots to run-and-gun documentary setups, this battery ensures you stay powered, stay productive, and stay focused on the creative.


Rolux Density III – Built for the Long Haul. Ready for Anything.

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