It's a brand new 5000/5kWh 48V Lithium Valley battery with the Capacity: 5kWh total energy (100Ah V nominal voltage).Cell Technology: Lithium Iron Phosphate (LiFePO4), known for safety and long service life.Cycle Life: Rated for approximately 6,000 cycles at an 80% depth of discharge.Design: Compact, wall-mounted white casing with an integrated Battery Management System (BMS).