ZJchao 3.7V 380mah Upgraded Battery for Hubsan X4 H107 H107l H107c H107d V252 Jxd385 Quadcopter Helicopter Upgraded battery, longer flying time For Hubsan X4 H107 H107L H107C H107D V252 JXD 385 RC quadcopter Capacity: 25C 3.7V 380mAh