3.7V 500mAh 25C Rechargeable Lipo Battery for Hubsan X4 H107 H107L H107C H107D RC Quadcopter Type: Charger Accessories Battery Type: H107 Series Lipo Battery Battery Capacity: 500mAh Battery Voltage: 3.7V Features: This is Hubsan H107 H107L H107C H107D Mini Quadcopter 3.7V 500mAh Lipo Battery. It is durable, practical and not easy to damage. Additionally, the low price can save you a lot of money greatly. It is a great product to save your Quadcopter as well as money. Do not hesitate to bring it home!