Invest in power with the Mighty Max 12V 18ah Lithium Iron Phosphate Battery. The ML18-12LI 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 8.00 lbs. and being a direct drop in replacement for its sister sealed lead acid and Gel batteries which weigh a hefty 12.00 lbs. Lighter, stronger and longer life span with 2500 cycles makes this the ideal battery for all your Deep Cycle applications such as, Solar / wind energy systems, Off Grid systems, RV, Camping, Backup power systems and much more. Attention - Designed to be used in parallel with a maximum of 4 identical batteries. Do not connect in series. Make sure to only use a compatible lithium charger for this battery and tightly screw the terminals. Having loose terminals will cause a buildup of heat resulting in damage to the battery.