Quantity of Two x 51.2 Volt 200 Amp Hour Wall Mount Style Lithium Batteries, 20kWh Total System, Cables and mounting hardware included, Each 48 Volt (51.2V) wall-mount LIFEP04 Lithium Phosphate Battery offers 10kWh of stored power, a TRUE 51.2 Volt 200 Amp-Hour Battery System, this is the perfect wall mount battery for any 48V based system. Battery weight is 202LBS (92KG), and Battery Dimensions are 21.65 x 20 x 11.3 inches (550 x 500 x 288mm). The built-in Battery Management System (BMS) Protects from Over-Charging, Over-Discharging, Overload, Short-Circuit, General Overload, The BMS does have high and low temperature protection that will physically stop the charge and discharge, there is an RS485 port and cable included for monitoring and troubleshooting, Imported. Stock Image Shown, custom cases available for any application. Due to the weight of Two 200Ah batteries delivery time is 60 days.