The AudioRoot DYAD-CC-H is a passive dual-input power combiner built for audio professionals who need a simple, reliable way to extend runtime or enable hot-swapping of batteries without the complexity of telemetry. With two battery cup inputs and a single HRS4 output, this cable is designed for streamlined integration with non-SMBus systems, including Audioroot’s vmDBOX and other third-party power distributors. The DYAD-CC-H enables redundant or extended power delivery by merging two independent 14.4V or 16.8V smart batteries (used passively) into one output. While telemetry is not supported, its passive architecture ensures full compatibility with basic or legacy DC setups, making it an ideal choice for backup power, bag rigs, or compact field recorders. Its HRS4 output is suited for many DC-powered audio systems, while the twin battery cup inputs provide flexible mounting options for on-rig power. Built to withstand professional environments, the DYAD-CC-H features rugged cabling, secure connectors, and a compact 60cm length.