Holder for NP camera battery (e.g. NP-1, NP-1A etc.). Presents power to the mixer via Hirose type 4-pin (male) plug on a flying lead. Incorporates four auxiliary, switched, Hirose 4-way (female) chassis connectors. Outputs are fused, regulated and can be switched between 12V and 9.6V. A low battery voltage indicator is fitted.