2 Pcs 7.4V 850mAH 20C Lipo Battery 703048 JST Plug for UDI U829A U829X MJX X600 Remote Control Car Boat Drone

Number of Batteries: 2 Lithium ion batteries required. (included)
Battery Cell Composition: Lithium Polymer
Voltage: 7.4 Volts
Battery Weight: 52 Grams