Brand: Spektrum Manufacturer's Part Number: SPMX50002S50H3 Part Type: RC Batteries Product Line: Spektrum Smart LiPo Batteries Summit Racing Part Number: HSU-S0013 UPC: 605482418260 RC Battery Type: LiPo RC Battery Connector Type: IC3 RC Battery Capacity: 5，000 mAh RC Battery Cells: 2 RC Battery Voltage: 7.4 V RC Battery LiPo C Rating: 50 RC Battery Length: 139mm RC Battery Height: 25mm RC Battery Width: 46mm RC Battery Weight: 10.4 oz. Quantity: Sold individually. Spektrum Smart LiPo Batteries Spektrum Smart LiPo batteries enable you to never set charge parameters until you want to. When one of these batteries is connected to a Spektrum Smart charger， unique parameters and the health of that Smart LiPo upload from the Smart memory microchip integrated into the RC battery. Through the charger， you can view and set preferences， such as charge rates， so that all you have to do to charge the pack every time is press the charger 'start' button. Smart technology takes care of the rest. Spektrum Smart LiPo batteries come in a variety of popular sizes and are ready to drop in for better performance， power， and reliability. They're ideal for high performance models and a great upgrade for more punch and power on nearly any radio-controlled vehicle setup.