Rolux B-Mount Battery RL-300WM 302WH 28.8V 10500mAh

Rolux B-Mount Battery RL-300WM 302WH 28.8V 10500mAh | A high-capacity option for B-Mount power

Without a battery that suits the power format a setup calls for, crews can end up planning around the packs they already have. The Rolux RL-300WM is a B-Mount battery for production teams whose equipment calls for that format. It’s rated at 302Wh, with a voltage of 28.8V and a capacity of 10,500mAh. Those figures give you a useful basis for comparing it with your equipment’s power requirements. I’d treat this as a deliberate system choice rather than a general-purpose spare: it makes sense when B-Mount is already part of your workflow. One honest point: a capacity figure on its own doesn’t tell you how long a particular setup will run. Your equipment and working day matter too. If the format fits your setup, the RL-300WM gives you a specific set of ratings to work with when planning production power.

Planning power for a shoot

A battery decision is part of planning a working day, not just choosing a number from a product name. Think about how your equipment is powered, how long you need it running, and how you organise power changes during a shoot. Those needs can differ from one production to another, so there’s no single capacity figure that suits every crew. It’s sensible to compare a battery’s ratings with the requirements of the equipment you plan to use and the way you work. That keeps the choice grounded in your actual setup rather than assumptions based on a headline specification. For a shop-floor conversation, I’d start with the power format your equipment requires, then work through the relevant ratings and your production needs.

Technical Specifications

• Model: RL-300WM
• Mount: B-Mount
• Capacity: 302Wh; 10,500mAh
• Voltage: 28.8V