Power management and distribution assembly mountable on a battery

A power management and distribution assembly for use with a battery. A housing is secured to a face of the battery and includes a first terminal engaging the negative battery terminal, and a second terminal engaging the positive battery terminal. An energy management subassembly is in operative communication with the negative terminal; a cut-off switch subassembly likewise being in operative communication with the positive terminal. Electrical components, such as fuses, relays and controllers, are arranged upon a circuit board mounted within the housing in electrical communication with both the energy management and cut-off switch subassemblies. A cover secures over an exposed face of the housing and an access door is defined in the cover and is openable to reveal the electrical components. Power feed output connectors and wire harness output connectors are associated with the energy management subassembly and are accessible from locations exterior the housing.