Marcum Max LiFePO4 12V 30AH Battery - For some outdoors activities, there’s simply never enough power to go around. Enter the MarCum Max Battery, at 12V30AH, it’s the largest Lithium LiFePO4 in class, delivering run-times measured in days vs. hours. Whether you camp, kayak, or shelter overnight on-ice, the MarCum Max is the ultimate battery for any long-haul pursuit. The MarCum Max is equipped with a BMS circuit that protects the battery 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. • Lithium LiFePO4 12V30 amp battery • Largest MarCum Lithium LiFePO4 for maximum power needs • 7 lbs. 3 oz. • LiFeP04 is the optimal lithium chemistry for cold-weather performance • On-board BMS Circuit for battery management protection • Offers 2,000 full charge cycles • Safety Tested and Certified to UL 62133 standards