Autel Robotics EVO II Intelligent Flight BatteryThe EVO ? is powered by a lithium-polymer battery. Autel Robotics EVO II battery MaxiEn 7100mAh high-performance Li-po battery offers you an extra 40 minutes of flight.The EVO ?&rsquo;s all-new, custom-designed rechargeable Li-Po battery features high energy density and capacity. It should be charged exclusively using the supplied charger.Compatible with Autel EVO II , Autel EVO II pro, Autel EVO II dualOnly use batteries and charging devices that came with the aircraft or are sold or authorized by Autel Robotics for use with the EVO ?.Battery ChargingThe LEDs on the aircraft battery will illuminate from left to right to indicate the current battery level during the charging cycle, and will turn off when the battery is fully charged.When charging is complete, disconnect the charger and the aircraft battery/remote control.It should take a maximum of 90 minutes to fully charge the aircraft battery, though charging times will vary according to the remaining power level.Additional functions to protect and save the battery:Storage Self-Discharge ProtectionSleep Mode ProtectionOvercurrent ProtectionOvercharge ProtectionBalance ProtectionBalance ProtectionPower Saving ModeUltra-Low Power Consumption Mode&nbsp;SpecificationsBattery type: High-Performance Li-Po BatteryRated Capacity: 7100mAhPower: 82WhNominal Voltage: 11.55VMax Charge Voltage: 13.20VFully charge: Approx 90 minutesFlying Time: Extend up to 40 min...