K Alien X250 RC Quadcopter Spare Parts 3.7V 780m Ah Lipo Battery Brand Name: XK Alien Item No.: X250 Item Name: 3.7V 780m Ah Lipo Battery Dimension: About 51.38*28.87*7.13MM Usage: Spare Parts for XK Alien X250 RC Quadcopter Package Included: 1 x Li po Battery