YKS 3.7V 100mah 1S 20C Lipo Battery Pack for Cheerson Cx-10 Mini RC Quadcopter (Pack 0f 2) Rechargeable Li-Polymer 1S battery. Voltage: 3.7V; Capacity: 100mAh. Continuous discharge rate: 20C. Size : Approx. 40 x 30 x 20mm / 1.57 x 1.18 x 0.79in . Weight (2pcs): 8g / 0.28oz. Compatible with: Cheerson CX10, JJRC H1 Mini NINJA, Hubsan Nano Q4 H111, Wltoys V272 mini Quadcopter.