The Safari UT 700 is the perfect Lithium Battery companion to the Solar Power Kit, or any other medium energy storage need you may have. It requires zero maintenance, holds a charge for up to 2 years, weighs in at just over 16.5 pounds, and is covered by a 10 year warranty.Battery Class - Lithium Ion Battery Chemistry - LiFePO4 - Lithium Iron Phosphate (also called LFP - Lithium FerroPhosphate) Rated Capacity - 12 V / 54 Ah / 716 Wh Cycle Life - 3500+ & 100% DoD Weight - 16.5 Pounds Dimensions - 10.2 X 6.6 X 8.8 Inches Nominal Voltage - 12.8 V Technical Rated Capacity - 54 Ah Standard Charge Current - 20 A Max Charge Current - 50 A Max Charge Volt - 15.4 V Max Continuous Discharge Current - 100 A Operation Temperature - -4 to 130 ºF Charge Temperature - 32 to 110 ºF