SWIT HB-A290B 28.8V 290Wh/10,005mAh B-Mount Battery with Built-In LED Flashlight

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3.51 LBS
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Product Overview


  • 290Wh/10,005mAh Capacity
  • 28.8V Standard B-Mount Interface
  • 10A Continuous Load
  • 100W/3A Fast Charging
  • 2 x 16V D-Tap & 5V USB Type-A Outputs
  • 60W USB Type-C Input/Output
  • OLED Status Display, Built-In Flashlight
  • Withstands Falls from up to 3.9'
  • Circuit Protection

Run your B-mount camera and pro video accessories from the HB-A290B 28.8V 290Wh/10,005mAh B-Mount Battery with Built-In LED Flashlight from SWIT. Robust and versatile, the battery's B-mount interface enables powering B-mount accessories, cameras, or lights with the correct voltage, which is determined by the device's B-mount plate.

The HB-A290B has several powerful features, including multiple circuit protections to prevent overcharging, an OLED status display, and a built-in flashlight to illuminate the mount when you are installing the battery. There are also two 16V D-Tap outputs and one 5V USB Type-A port for powering accessories, and it also has a USB Type-C port that can be used to power accessories or to charge the battery with a separately available charger. Designed to be strong, reliable, and versatile, this battery is built to withstand falls from 3.9'.

ARRI-Standard B-Mount Battery

The B-mount battery interface is a new industry standard endorsed by ARRI and the wider industry with high voltage support and a reliable lock system.

28.8V for Cine Gear

The 28.8V (22-33.6V) high voltage matches all ARRI cameras and lights and equivalent high-powered cine equipment by effectively reducing current, providing reliability and long life.

290Wh Large Capacity

The HB-A290B battery has a large 290Wh capacity and at least 250W/10A constant high load for cine cameras and devices.

Multiple Inputs and Outputs

The HB-A290B still provides two regulated 16V D-Tap outputs with 60W/3.8A load: one 5V/2A USB Type-A output and one USB Type-C 60W input/output.

Circuit Protection

The battery features multiple circuit protections to protect your battery and your gear.

USB Type-C 60W Power Output

You can power a laptop via the USB Type-C output of the HB-A290B battery, as it supports 5V 3A, 9V 3A, 12V 3A, 15V 3A, and maximum 20V 3A voltages, as well as BC1.2, PD2.0/3.0, QC2.0/3.0, FCP, and SCP protocols.

USB Type-C 60W Charging Input

The HB-A290B can be charged using an optional USB Type-C charger, and it supports PD 15V 3A and 20V 3A, which means you can fully charge the 290Wh battery within 5.5 hours.

OLED Power Info Display

The HB-A290B provides an OLED screen to display battery status and power information, including power percentage, remaining runtime, USB Type-A/Type-C status, and protection warning code if anything abnormal is detected.

100W Super-Fast Charging

You can charge four HB-A290B batteries simultaneously on the SWIT PC-P461B B-mount charger using 33.6V 3A, 100W super-fast charging. The charger will take approximately 3 hours and 50 minutes to fully charge four HB-A290B batteries.

LED Flashlight

You can double-press the Power Check button to switch on the LED flashlight on the rear side of the battery to help you to find the B-mount plate in a dark production environment.

Drop Proof at 3.9'

The HB-A290B battery can survive a drop from 3.9' at any angle, providing strong and reliable performance for filmmakers.


Mount / Series Type B-Mount
Chemistry Lithium-Ion
Battery Capacity 10,005 mAh / 290 Wh
Output Voltage 28.8 VDC
Maximum Load 10 A (Peak)
Accessory Port 2 x D-Tap Output 16 V Regulated
1 x USB Type-A Output 5 V, 2 A Regulated
1 x USB Type-C Input/Output 60 W Regulated
Maximum Load (Accessory Port) 60 W, 3.8 A (D-Tap)
USB Output 5 V, 2 A
Dimensions (W x H x D) 5.7 x 3.9 x 3.1" / 14.4 x 10 x 7.9 cm
Weight 3.35 lb / 1.52 kg
Packaging Info
Package Weight 3.51 lb
Box Dimensions (LxWxH) 6.05 x 4.25 x 3.1"


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