Cworth Energy 12V 300Ah LiFePO4 Battery, a deep-cycle lithium iron.Capacity & Voltage: 12V nominal voltage with a 300Ah rating, delivering roughly 3.84kWh of total energy storage.Application: Designed for solar inverter setups and backup power systems, featuring a built-in Smart BMS.Physical Specs: Approximate box dimensions shown on the packaging are 410 x 270 x 300 mm.