




› 22-33.6V B-mount battery hotswap
› 28V, 32Wh 3Ah battery cells inside
› 200W constant high load
› At least 2 minutes run time
› 120 seconds countdown display
› 2x D-tap regulated 14V output
› 1x 2-pin LEMO regulated 14V output
› USB 5V/2A x1 power output
› 22-33.6V 8-pin input for power station hotswap
› Aluminum CNC unibody housing
› Multiple circuit protections
B-mount Hot-swap Plate
KA-B30B is a B-mount extended plate with battery cells inside, and when you changing battery, the plate will take over the power supply until a new battery is mounted on. So you don’ t need to switch off the cameras with this hot-swap plate.
120 Seconds Countdown Display
The hotswap plate provides an LCD screen to display countdown seconds when changing battery.
When battery is removed, the screen will countdown from 120s. You just need to put on a new battery before it count down to 0.
The new battery will charge the hotswap plate as well. You can see the countdown seconds will go back to 120s after a period of time.
The inner cells will ensure at least 120 seconds at 200W high load even after 500 times cycle.
32Wh, 28V, 200W High Load
KA-B30B has 32Wh battery cells inside, provide 200W constant high load for cine cameras and all camera-top devices.
The plate supports 22-33.6V B-mount battery, and power camera at 22-33.6V.
When B-mount battery is removed, the inner cells provide regulated 28V to power camera.
Power Interfaces
KA-B30B provides:
1x 2-pin LEMO Reg. 14V 5A 70W out
2x D-tap Reg. 14V 5A 70W (each) out
1x USB-A 5V/2A output
1x 8-pin 22-33.6V DC input (For power station hotswap)
ARRI ALEXA35 Match
KA-B30B matches with ARRI ALEXA35 perfectly to provide uninterrupted power, and will work with all the future ARRI cameras/lights with B-mount battery plate.
Inner battery voltage |
28V regulated |
Inner battery capacity |
32Wh/3Ah |
Power load |
200W constant high load |
B-mount power out |
Attach battery: 22-33.6V to camera Remove battery: 28V / 200W to camera |
D-tap output x2 |
14V regulated, 70W |
2-pin LEMO output |
14V regulated, 70W |
USB-A output |
5V, 10W/2A |
8-pin LEMO input |
22-33.6V |
Dimensions |
93×143×50.2mm |
Net weight |
749.6g |
MonitorWe provide 2 years conditional warranty for monitors (1 year for LCD panel).
The following damages/issues are not covered under warranty:
(1) Any damage or breakdown caused by use, maintenance, or storage not according to the User Manual’s instructions, or disassemble, repair without authorization of SWIT. |
Video TransmitterWe provide 1 year conditional warranty for Wireless video and converters.
The following damages/issues are not covered under warranty:
(1) Any damage or breakdown caused by use, maintenance, or storage not according to the User Manual’s instructions, or disassemble, repair without authorization of SWIT. |
BatteryWe provide 2 years conditional warranty for V-mount/Gold Mount batteries, and 1 year conditional warranty for DV and NP-1 batteries. The following damages/issues are not covered under warranty:
(1) Any damage or breakdown caused by use, maintenance, or storage not according to the User Manual’s instructions, or disassemble, repair without authorization of SWIT. |
Charger & AdaptorWe provide 2 years conditional warranty for battery chargers and power adaptors The following damages/issues are not covered under warranty:
(1) Any damage or breakdown caused by use, maintenance, or storage not according to the User Manual’s instructions, or disassemble, repair without authorization of SWIT. |
LightWe provide 1 year conditional warrant for light products. The following damages/issues are not covered under warranty:
(1) Any damage or breakdown caused by use, maintenance, or storage not according to the User Manual's instructions, or disassemble, repair without authorization of SWIT. (2) Any damage caused by powering the product with third-party power adaptors. |