The Xantrex Lithium Ion Iron Phosphate (LiFePO ) battery uses UL1973 certified cells. Equipped with redundant safety features, the Xantrex lithium battery is the safest in the market today. Specifically designed to withstand the harsh operating environments of marine and vehicle applications, the Xantrex lithium battery lasts up to 6,000 cycles compared to a traditional lead acid or AGM battery, which typically lasts 400-500 cycles. The 105Ah battery is IP65 rated as well as tested to UL 458 starter compartment for marine applications. The ability to stack 4 batteries in parallel allows for creating a larger Ah system when there is no single space large enough for the larger Ah batteries. The Xantrex lithium battery offers exceptional power density and is also available with a heating blanket option if installation is outside the main cabin. With the Bluetooth connection enabled gathering real time data from the battery is incredibly simple and always accurate.