Specification: Brand: Gaoneng Battery type: Lipo Number of cells: 2 S Rated Capacity: 650m Ah Rated voltage: 7.4 V Discharge rate: 80 C Connector Type: XT30 Dimensions: 13*28*61MMWeight:42g Note: due to the difference between the measurement, the battery dimension & weight may have little error. Caution: Dont over-charge, or over-discharge batteries. Dont put it beside the high temperature condition. Dont throw it into fire. Dont throw it into water. Packaging included:1X 7.4V 650mah 80C 2SXT30 Lipo Battery