FLOUREON 4S 35C 14.8V 5500mAh Li-Polymer RC Battery Pack (5.98*1.97*1.42 inch) for RC Helicopter RC Airplane RC Hobby XT60 Plug Chemistry: Li-Polymer; Voltage:14.8V; Cell: 4; Capacity: 5500mAh Discharge: 35C; Charge Plug: JST-XH; Discharge Plug: XT60 Connector Battery Dimension: 152.00*50.00*36.00mm (5.98*1.97*1.42inch) Battery Weight: 532.2g / 18.77oz FLOUREON batteries comply with RoHS and CE quality testing standards.