B-Mount® Battery Interface
The B-Mount battery interface is an open industry standard endorsed by ARRI and developed by bebob. It offers significant advantages over previous systems, including high power and multi-voltage capability, smooth mechanics and universal battery communication.
Cross-compatible with popular on-set camera and lighting equipment from manufacturers worldwide, the B-Mount makes it possible to supply all devices on set with one single battery system.
for Cameras & Lights
Streamline your power needs for easy and efficient shooting:
The B-Mount interface offers maximum flexibility regarding the choice of batteries and accessories on set.
It has three times the potential to meet increasing on-set power needs than traditional 12V systems – offering a sustainable solution to meet the increasing power consumption of modern cameras and lighting.
One for All – 24V and 12V
B-Mount batteries from bebob provide 24 Volt high-power but also support multi-voltage (both 12 Volt and 24 Volt) – widening the range of equipment that can be utilized on set.
Furthermore, bebob offers customized V-Mount and Gold Mount adapter plates to power various cameras and lights with B-Mount batteries.
Being adaptable for the respective needs of each device, B-Mount batteries make it possible to supply all devices on set with one battery system.
Main Benefits at a Glance
- Future-proof: B-Mount offers a sustainable solution to meet the increasing power consumption of modern cameras and lighting.
- High power capability: B-Mount batteries provide a dedicated mobile power supply for high performance 24V devices.
- Multi-Voltage: B-Mount batteries from bebob provide 24 Volt high-power and also support multi-voltage (both 12 Volt and 24 Volt).
- One for all: Being adaptable for the respective needs of each device, B-Mount batteries make it possible to supply all devices on set with one battery system.
- Smooth mechanics: The solid engineering of the B-Mount interface guarantees a sturdy connection, featuring the seamless interlocking of individual components.
- Open protocol for advanced communication: B-Mount batteries provide accurate information on run time and charge time, even with stackable batteries – increasing efficiency on set.
- Universal industry standard: B-Mount is an universal 24 Volt industry standard for cameras and lights. Tech specs are published openly.
- You are talking about 12V and 24V systems, but my batteries read 14.4V?
- Today’s 12V Lithium-ion batteries read 14.4V nominal with 4s designs (using four cells in series in the battery pack). 24V Lithium-ion batteries read 26.5V nominal with 7s designs and 28.8V nominal with 8s designs.
- Can I power my 12V devices with the B-Mount battery system?
- Yes, our B-Mount batteries offer this opportunity. You need one of our 12V B-Mount power plates in addition, which will only pass 12V through from the battery to your device.
- Which cameras and lights can be powered with B-Mount batteries?
- We are continuously extending the range of compatible B-Mount adapter plates for the most popular cameras and lights. We are continuously extending the range of compatible B-Mount adapter plates for the most popular cameras and lights. You can find our available plates here.
- What are the benefits of bebob B-Mount batteries compared to 26V batteries?
- There are several advantages. The two most important are: More power and native multi-voltage capability. Voltage is directly related to power, both units correlate – the higher the voltage, the more power you get. bebob B-Mount batteries provide full 28,8V (instead of only 26V) – so they are a sustainable solution to meet the increasing power consumption of modern cameras and lighting. In addition, our B-Mount batteries provide natively 28,8V. There’s no up-conversion needed which would create heat and stress on the battery cells. And because of their native multi-voltage capability, our B-Mount products allow you to supply all devices on set with one single battery system.
- Is there any voltage conversion necessary to switch between the 12V and the 24V mode of bebob B-Mount batteries?
- There’s no conversion necessary! bebob B-Mount batteries support true native dual voltage capability and switch natively between 28,8V and 14,4V. This is ensured by the smart 8s/4s cell pack design of bebob B-Mount batteries which allows to switch between native 4s and 8s (12V mode/4s: 14,4V; 24V mode/8s: 28,8V) and to operate in a 12V environment or/and in a 24V environment. There is no up-conversion necessary to amplify voltage from 14,4V to 28,8V.
- What is the maximum load of bebob B-Mount batteries? And why is 20A continuous amperage important?
- The bebob B-Mount max. continuous current is Imax = 20A (with a continuous power of min. 400W). This is a great advantage compared to 26V batteries with a 20A peak amperage only: Secure operations on set need the highest continuous amperage possible, regardless of the equipment in use, the power inrush and continuous consumption on set. bebob B-Mount batteries guarantee 20A continuous amperage, all components and the circuit designs are high-quality, durable and withstand high power easily. Specifications have been comprehensively tested, qualified and certified.
- What kind of charger do I need to charge a bebob B-Mount battery fully to 100%?
- Either the bebob B-Mount chargers or an equivalent 4s or 8s battery charger (16,8V or 33,6V). The max. charge voltage is 33,6V (in 24V mode/ 8s batteries) or 16,8V (in 12V mode/4s batteries). A 26V/7s battery charger is not sufficient, because this would only achieve approx. 1/3 of the potential capacity. Therefore the battery won´t be capable to deliver its full capacity due to a false charger operation.
- How can I see the battery life status of a bebob B-Mount battery?
- The actual quality of a battery can be evaluated by the ratio of the Actual Full Capacity and its Original Capacity (when it was new) in %. This parameter is also called “state of health”. In order to guarantee the company’s high-quality standards, bebob offers a status alert for its B-Mount batteries that shows their quality ratio. As soon as the actual full capacity of older batteries falls below 70%, the LED status indicator lights up orange, and changes to red once it falls below 50%. This way permanent insight into the condition of your batteries is guaranteed and you can decide whether to get the cells replaced or not.