Feature:1. SAFE TO USE: The battery pack has built in intelligent self discharge, overcharge and discharge protecting, which prevents the battery from overheating, overcharging or short circuiting.2. APP COMPATIBLE: Perfectly connects with drone APP to display battery status, such as usage time, remaining time, and set an alert when the battery power is below 30%.3. HIGH PERFORMANCE: High capacity battery 3850mAh for Mini 4 Pro, for Mini 3, for Mini 3 pro drone. Please confirm the drone model before purchase.4. PLASTIC SHELL: Made of plastic material, the battery shell is strong and good heat dissipation which extend the product life time and safer. Professional replacement intelligent battery for your drone, extend the flight time.5. LONG LIFE: A fully charged battery lasts up to 30 minutes of flight time, enough time to capturing spectacular nature or life's simplest happiness. Available flight time ranges from 20 to 30 minutes, varying with flight mode or environment such as wind and temperature.Specification:Item Type: Intelligent Flight BatteryShell Material: PlasticNominal Voltage: 7.38VMaximum Charge Voltage: 8.5VCapacity: 3850mAh Lithium Battery (Pure Battery)Applicable: For Mini 3, for Mini 3 Pro, for Mini 4 Pro.Package List:1 x Intelligent Flight Battery