Features:Original XIAOMI product high quality and durable.Highcapacityforupto27 minutesofflighttime.LEDSdisplayboththestatusandtheremainingpowerofthebattery.Integratedpowermanagementandbalancedchargingcapability.Smartcharge/dischargefunctionalityhelpsprotectyourbattery.Easyslot-indesignforfastchargingandinstallation/removal.Suit for Mi Drone 4K / Mi Drone RC quadcopter.