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bebob introduces new Hot Swap Adapters for B-Mount

The B90cineML and B155cineML ensure uninterrupted power supply on set

Munich, June 20, 2024. Two new B-Mount batteries with buffer function complete the B-Mount portfolio of Munich-based battery manufacturer bebob. The B90cineML and the B155cineML have different capacities (86Wh and 156Wh, respectively), but share the same functionalities. They can be connected in series with other B-Mount batteries and simultaneously function as dual-voltage high-performance batteries and hot-swap adapters. They automatically take over the power supply to the camera and the D-Tap connection as soon as the connected battery is empty. This guarantees a continuous, uninterrupted power supply during camera operation. Special advantage: Both MLs can be charged either by a plugged-in battery or a B-Mount charger.

Useful details

Like all B-Mount batteries from bebob, the B90cineML and the B155cineML support two different voltages, 14.4V and 28.8V, and can be used for 12V and 24V devices. Their continuous power and current output are 450W and 20A, respectively. A five-stage LED display indicates their current charging status. Both are equipped with a Twist D-Tap and a USB-C port. As is typical for bebob, they are built to a high-quality, very robust design and are maintainable: the cells can be replaced, as with all bebob batteries,  if their performance declines after years of use.

Specifications of the B90cineML and B155cineML

Capacity: 86Wh (B90cineML) or 156Wh (B155cineML)

Mount: B-Mount

Dual voltage: 14.4V/4s and 28.8V/8s

Max continuous load capacity: 450W / 20.0A


  • USB-C (5.0V max 1.0A)
  • D-Tap (13.2V max 2.5A)

Capacity display: 5-stage LED

Automatic load switching and charging of the buffer

Weight: 662g (B90cineML) or 1.04kg (B155cineML)

Dimensions (W x H x D):

  • 94 x 144 x 47mm (B90cineML)
  • 94 x 144 x 66mm (B155cineML)

Warranty: 2 years

Prices and availability

The recommended retail price for the B90cineML is € 769 /$ 849 and for the B155cineML € 879 / $ 969. Both come with a two-year guarantee on 80% of their capacity and are available immediately from all authorised bebob dealers.

For more information:

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