ARRI to use 24 volt battery in future cameras

With the introduction of the B-Mount, ARRI and bebob aim to create a new, universal 24 Volt industry standard.
This newly developed B-Mount interface
This newly developed B-Mount interface


With digital cameras increasingly pushing the performance limits of established 12 Volt systems, Munich battery manufacturer bebob, has developed the B-Mount in partnership with ARRI. The B-Mount is a new battery mount that makes it possible to supply 24 Volt devices in order to meet the increasing power demands of camera and lighting systems. 

ARRI has announced that is will be using the B-Mount for all of its future cameras. The solution provides camera manufacturers maximum flexibility regarding the choice of batteries and accessories.

This newly developed B-Mount interface has several decisive advantages compared to its predecessors. The new B-Mount provides 24 Volt high-power but is also equipped to support multi-voltage (both 12 Volt and 24 Volt).

The B-Mount makes it possible to supply all devices on set with a single battery system as it is adaptable to the needs of compatible devices. Special attention has been paid in the design to ensure a stable, robust construction, which features an interlocking system to incorporate individual components.

According to ARRI, having an open protocol and universal battery communication was also important in the B-Mount’s development. Previously, manufacturers had to develop various data transmission protocols for different device configurations.

With the B-Mount interface, only one protocol is required. With the introduction of the B-Mount, ARRI and bebob aim to create a new, universal 24 Volt industry standard. The specifications for this interface have been made accessible and have already been shared with various manufacturers in recent months.

“Since the introduction of our ALEXA LF, we have been looking for a 24 V standard, which will make it easier to work on set in the future. Bebob has now created a fitting solution with the new B- Mount,” says Stephan Schenk, Managing Director of ARRI Cine Technik, responsible for ARRI's Business Unit Camera Systems.

Christoph Aust, Managing Director at bebob comments: “We are very honored that ARRI supports the development of this important project. Besides its  high power capability, we consider the multi-voltage concept of the B-Mount interface to be a real game changer—therefore we will be presenting our first series of bivoltage batteries with matching accessories at NAB.”

Visitors at NAB 2019 can get a first impression of the new B-Mount interface at the ARRI booth and the bebob booth.

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