The MRC-11A four position external battery power supply provides the ability to easily and safely transport up to four batteries wired in parallel to a single output connector. The batteries are wired in parallel in order to combine the current capacity of multiple batteries when the operational requirement demands a long duration battery power system. Batteries are diode isolated to protect back-feeding. Optional wiring configurations help meet additional requirements. No tools are required to remove and replace batteries.

The MRC-11A case is watertight and dustproof and securely holds the batteries in place.