Cworth Energy 2.5kWh / 12.8V (200Ah) Solar Lithium Batteries.Capacity & Voltage: 2.5kWh energy capacity, 12.8V (200Ah).Features: Built-in intelligent BMS, supports parallel expansion, and rated for up to 6,000 cycle times.Dimensions & Casing: Box dimensions indicate a size of 510 × 385 × 225 mm with an IP21 indoor rating.