Mighty Max Battery ML100-12LI - 12V 100AH Deep Cycle Lithium Mighty Max Battery ML100-12LI - 12V 100AH Deep Cycle Lithium Invest in power with the Mighty Max 12V 100ah Lithium Iron Phosphate Battery. The ML100-12LI will take your deep cycle battery experience to a whole new horizon. Manufactured with the highest quality components and the customers safety in mind, this battery contains a battery management system (BMS). BMS provides all kinds of protection for the battery and customer, equipped with Over charge and short circuit protection. Weighing only 30 lbs. and being a direct drop in replacement for its sister sealed lead acid and Gel batteries which weigh a hefty 60 lbs.