4 X Wltoys V977 V930 3.7v 520mah Upgrade Battery With Charger

4 x WLtoys V977 V930 3.7V 520MAH Upgrade Battery With Charger Description: Item Name: Lipo Battery Specification: 3.7V 520mAh Lipo battery Cable Length: 30mm Battery dimension: 65 x 15 x 5mm Battery weight: 13.6g Feature: Upgrade to 520mAh, longer flight. Suitable for: WLtoys V966 V977 V988 V930 Package Included: 1 x X4 charger 1 x battery HORI 4 x 3.7V 520mAh Lipo battery