LANDVO Upgrade 7.4V 650mAh Lithium Battery for JJRC H8C H8D RC Quadcopter Spare Part Silver Pack of 4 4 Pack upgrade 7.4V 650mAh li-po batteries aim to extend the flight time High quality and rechargeable performance, can be recharged about 500 times Great lithium batteries to power your RC toy, one fully charged battery can provide a 9-10 minnnutes flight time Suitable for: JJRC H8C, H8D rc quadcopter Dimensions: 5.2 x 2.5 x 1.4cm (L x W x H). Please note that the charger recommended as Frequently Bought Together with title ThinkMax 4-in-1 4 Battery Charger for Hubsan By Thinkmax is NOT for these batteries!