When you’re building out a professional camera kit, the battery mount standard you choose shapes everything that follows — which plates you need, which chargers you buy, what’s available at hire houses, and how your rig integrates with the rest of a crew’s setup. Get it right early and it becomes invisible. Get it wrong and you’re living with adapters and compatibility headaches for years.
Here’s a clear breakdown of the main battery mount standards in professional broadcast and cinema production, and how to think about which one belongs in your kit.
V-Mount: The European and Global Broadcast Standard
V-Mount — also known as V-Lock — is the dominant battery standard across European and Asian broadcast and cinema production, and for most UK-based operators it’s the natural starting point. The design features a V-shaped groove that mounts from the top down, locking securely onto a compatible plate. It’s a 14.4V nominal system, reliable, widely supported, and backed by a deep ecosystem of accessories, plates, and chargers. IDX has been manufacturing V-Mount batteries since the standard’s early development, and the IDX V-Mount range covers everything from compact travel-friendly units to high-capacity batteries for extended broadcast productions.
Walk onto any British broadcast set, into a UK hire house, or onto an outside broadcast truck and you’ll find V-Mount as the default. For freelance operators working in the UK and Europe, this compatibility with hire kit and crew is one of the most practical advantages of the standard — you can borrow, lend, and share batteries across productions without a second thought.
What to Look for in a V-Mount Battery
Not all V-Mount batteries are equal. The core specification to understand is watt-hours (Wh) — the measure of energy capacity that determines how long your rig will run on a single charge. Beyond that, the features that matter most to working operators:
- D-Tap outputs — for powering accessories like monitors, wireless transmitters, and follow focus systems directly from the battery.
- USB-C outputs — increasingly standard on modern batteries for powering or charging smaller devices in the field.
- Accurate charge indication — a reliable display showing remaining capacity, ideally in both percentage and runtime minutes rather than just LED bars.
- Build quality and cell quality — the cells inside the battery determine real-world performance and longevity. IDX uses high-grade Japanese li-ion cells, manufactured to the same safety and quality standards that have made the brand trusted by broadcasters including the BBC, Sky Sports, and Panavision for over 35 years.
The IMICRO-98P is a good example of how far V-Mount technology has evolved — it’s the world’s smallest battery at 98Wh capacity, making it ideal for compact rigs and travel without sacrificing the runtime serious operators need.
Sony BP-U: Camera-Specific Power for Sony Operators
Operators building around Sony’s PXW, FX or FS models will be familiar with the BP-U mount — Sony’s proprietary battery format designed to integrate directly with their camera bodies. IDX manufactures dedicated BP-U compatible batteries , including the SB-U98/PD , which provide a direct power solution without the need for a separate V-Mount plate and adapter. For owner-operators whose kit is built around Sony broadcast cameras, this is the cleanest and most integrated approach to power.
For those wanting to extend runtimes and run a hybrid V-Lock and BPU system for the Sony FX9 rig can take advantage of our A-DCFX9 adaptor. Designed specifically for the FX9 allows you to run the camera off of a V-Mount battery but with a smaller capacity BPU battery installed in the camera to run as a redundancy back up or for Hot Swap capability.
Sony SL-F: 7.2V/7.4V Solutions for Handheld Cameras and Third Party Accessories
The SL-F/PD models are lower voltage 7.2V/7.4V models designed for Sony camera and third party equipment that adopts the Sony NPF type mount. A battery mount adopted by a myriad of manufacturers due to the availability and mounting simplicity to incorporate into their equipment.
Accessories with this mount type will allow you to run lower voltage accessories from a dedicated power source which allows for an extra layer of safety and reduces the risk of overloading a single power source.
IDX models are unique as we offer large capacity NPF models to increase runtime as well as including USB outputs with ability to Power Out and allow charging via the USB-C PD socket.
B-Mount: The High-Voltage Cinema Standard
B-Mount is a newer, 24V open battery standard developed by ARRI and implemented across their camera and lighting range. Where V-Mount operates at 14.4V, B-Mount’s higher voltage delivers greater efficiency — particularly relevant for high-draw cinema cameras and large LED fixtures that would require multiple V-Mount batteries to power effectively. IDX manufactures B-Mount batteries as part of the CinePower range , including the HV-320B , designed for productions moving to this standard.
B-Mount is an open standard — any manufacturer can produce compatible products — which is good news for operators investing in it long term. For productions running ARRI cameras or high-output LED lighting systems, B-Mount is increasingly the right choice. For the majority of broadcast and documentary operators, V-Mount remains the practical standard for now.
Plates, Adapters, and Building Around a Standard
Whichever mount standard you use, the plate is the critical interface between battery and camera. IDX’s V-Mount plates and accessories range covers a wide variety of camera configurations, from shoulder-mount broadcast cameras through to cinema rigs and gimbal setups. Choosing a plate from the same manufacturer as your batteries ensures the electrical tolerances and mechanical fit are engineered to work together — something that matters more than it might seem when you’re on a long shoot and reliability is non-negotiable.
Choosing the Right Standard for Your Kit
For most UK-based freelance operators and production companies, V-Mount is the answer. It’s the broadcast industry standard across Britain and Europe, it integrates naturally with hire kit, and the depth of the ecosystem makes it the most practical and future-proof choice for everyday professional work.
Sony BP-U batteries make sense if your work is built around Sony broadcast cameras and you want the cleanest possible integration. B-Mount is worth considering if you’re regularly working on high-end cinema productions running ARRI cameras or large LED fixtures.
IDX manufactures across all three standards, with a range built specifically for the demands of professional broadcast and cinema production. Browse the full battery range , or find your nearest authorised dealer for advice on the right solution for your specific kit and workflow.
