MarCum realizes that there are certain systems designed for open-water which are also run on ice. These units typically have a higher power draw designed for deep cycle batteries. The MarCum King Lithium LiFePO4 at 12V18AH delivers deep cycle performance in a compact, portable form-factor. The MarCum King is equipped with a BMS circuit that protects the bat-tery from overcharge, over dis-charge, and short circuiting. As a sportsmen, you rely on these power options to fuel your passion for the outdoors. You can trust MarCum as all of our Lithium and LiFeP04 products are tested and certified to an international quality and safety standard.