Specification: Brand: ZOP Power Battery type: Lipo Number of cells: 4 S Rated Capacity: 550m Ah Rated voltage: 14.8 V Discharge rate: 70 C Connector Type: JST Plug Dimensions:18*30*53mm Weight: 87g Note: due to the difference between the measurement, the battery dimension & weight may have little error. Caution: Don't over-charge, or over-discharge batteries. Don't put it beside the high temperature condition. Don't throw it into fire. Don't throw it into water. Packaging included:1 X ZOP Power 14.8V 550m Ah 70C 4 S Lipo Battery