WLtoys V931 RC Heli Parts 3.7V 720mAh 1S 25C Upgraded Battery

V931 RC Heli Parts 3.7V 720mAh 25C Upgraded Battery Description: Item Name: 1S 3.7V 720mAh Li-po Battery Weight: About 16.9g/piece Size: 4.2 x 2.5 x 0.95cm Flying time:About 8 minutes(Manufacturer rated)(the original V931 only 5 minutes and 30 seconds) Charging time:About 40 minutes Usage:For Wltoys V931 RC Helicopter Note: This product is the Upgraded Battery,so the capacity and the size will be more bigger than the original one. It will be hard and tight when installing the battery. And also you can tear up the product surface tag,if it still very hard to install.Please note that before buying. Package Included: 1 x 3.7V 720mAh Li-po Battery