eSMART BG-DH MKII power distributor

The Original, Reinvented — Compact Power Distribution for ENG Sound Bags

The Audioroot eSMART BG-DH MKII is a next-generation DC power distributor designed specifically for field sound professionals. As the direct successor to our groundbreaking eSMART BG-DH—the original smart battery distributor introduced in 2009—this compact powerhouse builds upon a legacy that revolutionized portable audio power management.

Before the BG-DH, production sound recordists relied on standard batteries, often without any visibility into how much energy remained—an unacceptable compromise for mission-critical work. The BG-DH changed that forever, introducing real-time battery intelligence through SMbus smart battery technology. The MKII version pushes the concept even further with a refined, more compact design, increased functionality, and superior reliability.

Key Features

• ✅ Real-Time Battery Monitoring
  At a glance, view all critical battery data on a sunlight-readable OLED color screen:

  • Remaining capacity (%)

  • Estimated runtime (hh:mm)

  • Voltage (V)

  • Current draw (A)

  • Battery temperature (°C)

  • Charge/discharge cycle count

• ✅ Ultra-Compact Form Factor
  Measuring just 65 x 50 x 30 mm and weighing only 130 grams, the BG-DH MKII fits effortlessly into any ENG sound bag. All cabling routes downward to optimize space and workflow.

• ✅ Robust and Flexible Output Options
  Equipped with 6 Hirose locking outputs, the BG-DH MKII supports a wide range of configurations:

  • 1 unfused SMbus passthrough output

  • 3 fused outputs (protected by 2.5A re-settable Polyswitch fuses)

  • 2 non-fused auxiliary outputs

• ✅ Powerful Visual Alerts
  A blinking red LED alerts you when battery capacity drops below 10%, helping prevent sudden power loss.

• ✅ Switchable Output Control
  Separate locking switches let you independently toggle 4 main outputs and 2 auxiliary outputs, giving you total control over your power distribution.

• ✅ Plug-and-Play Smart Battery Integration
  Seamless compatibility with all Audioroot eSMART lithium batteries. Simply plug in to activate intelligent data communication via the SMbus.

• ✅ OLED Color Display
  The integrated 96 x 64 pixel OLED display is bright, colorful, and offers a wide 180° viewing angle—perfect for viewing battery stats from any position.

• ✅ Efficient, Low-Power Operation
  With extremely low internal power consumption, the BG-DH MKII maximizes your battery's autonomy without sacrificing visibility or control.

• ✅ Designed for Mobility
  Includes a durable belt clip, perfect for fast setups and field use. The Hirose locking connectors provide robust, secure connections in all conditions.

Technical Specifications

Why Choose the BG-DH MKII?

With over a decade of real-world field use and feedback from top sound professionals, the eSMART BG-DH MKII represents the culmination of innovation and reliability. Whether you're mixing on a mountain, in a dense city, or a remote desert location, this distributor is your unshakable power hub.

Compact. Smart. Reliable.
The eSMART BG-DH MKII isn’t just a tool—it’s a milestone in the evolution of portable audio power.