Feature:1. 3-Way Charging: The drone charging station can accommodate up to 3 batteries and charge them in order of power from high to low. High-power batteries are charged first.2. Charging Time: 3 x 2453mAh batteries in approximately 150 minutes, 3 x 3850mAh long-life batteries in approximately 225 minutes.3. Power Display: The battery is connected to the USB charger, the battery level is displayed for 5 seconds, and the function button can be pressed once to display the battery level.4. Storage Mode: The storage mode for the 3-way drone battery charger is to charge batteries with less than 60 percent battery level to 60 percent for long-term storage.5. Warnings: Fully charged storage of batteries is prone to bulging, and storage without power can cause battery failure.6. Safe Charging: The drone battery charger can use a PD function charging treasure outdoors with a charger to charge the battery.Specification:Item Type: Drone Charging StationShell Material: PlasticSize: Approx. 9.7x5.5x2.8cm / 3.8x2.2x1.1inColor: GrayInput Voltage: 5V 9V12V 3A (Maximum)DC Output: 8.5V 3.8A (Maximum)Charging Time (Input: PD 40W or higher): 3 x 2453mAh batteries in approximately 150 minutes, 3 x 3850mAh long-life batteries in approximately 225 minutesFor DJI Mini3 Pro, for Mini 3 Drone Battery.Package List:1 x Drone Charging Station2 x Charging Cable1 x Instruction ManualNote:Please allow some errors in manual measurement.