Features: 1. You can check the battery power 2. Up to 3 batteries can be put in and charged in order from high to low. Batteries with high power are charged first 3. There are full charging mode and storage charging mode 4. Support PD, QC3.0 fast charging Specification: Material: Plastic Input: 5V/9V/12V--3A (max) Output: 8.5V/3.8A(max) Charging time: (Input: PD 40W or higher) Three 2453mAh batteries about 150 minutes (50 minutes per battery) Three 3850mAh batteries about 225 minutes (75 minutes per battery) Product size: 9.6x5.4x2.8CM/3.8x2.1x1.1inch Charging environment temperature: 0-40C Suitable for mini 3 Pro battery and long battery life. Packing List: 1 x Charging hub 1 x USB-A to USB-C charging cable 1 x USB-C to USB-C charging cable (Note:batteries not included) Storage and charging mode: the battery is best preserved for long-term storage with 60% power. Storing the battery with a full charge is easy to bulge, and storing it without a charge may cause the battery to fail. The storage mode is to charge the battery with a battery power lower than 60% to 60% for long-term storage. About this item CompatibilitySpecially designed for DJI Mini 3 Pro 2453mAh and 3850mAh battery, long life battery. Fully Charges 3 BatteriesIt can charge three DJI Mini 3 pro batteries from high to low according to the battery level. Three 2453mAh batteries about 150 mins(about 50 minutes each battery), three 3850mAh batteries about 225 mins(about 75 minutes each battery). Three batteries are charged at the same time. Check Battery LevelNo need to install the battery on the drone, just put the battery into the charging hub, press the button to check the battery power. 1 indicator light on means the battery is below 25%, 2 lights on means the battery is 50%, 3 lights on means the battery is 75%, 4 lights on means the battery is 100%,and the charging is over without flickering. Convenient & SafeLightweight, small in size. Easy to carry, It is suitable for various types of dronestore bags and backpacks. Put battery to the charging hub, and it can be charged after connecting to the power supply. Quick ChargeMini 3 Pro charging hub uses USB-C charger, it can fully charge three Mini 3 Pro intelligent flight batteries, intelligent recognition, can charge higher batteries first, let mini 3 Pro Fully charge and remove. It can be used as a power bank and battery for easy portability. CompatibilitySpecially designed for DJI Mini 3 Pro 2453mAh and 3850mAh battery, long life battery. Fully Charges 3 BatteriesIt can charge three DJI Mini 3 pro batteries from high to low according to the battery level. Three 2453mAh batteries about 150 mins(about 50 minutes each battery), three 3850mAh batteries about 225 mins(about 75 minutes each battery). Three batteries are charged at the same time. Check Battery LevelNo need to install the battery on the drone, just put the battery into the charging hub, press the button to check the battery power. 1 indicator light on means the battery is below 25%, 2 lights on means the battery is 50%, 3 lights on means the battery is 75%, 4 lights on means the battery is 100%,and the charging is over without flickering. Convenient & SafeLightweight, small in size. Easy to carry, It is suitable for various types of dronestore bags and backpacks. Put battery to the charging hub, and it can be charged after connecting to the power supply. Quick ChargeMini 3 Pro charging hub uses USB-C charger, it can fully charge three Mini 3 Pro intelligent flight batteries, intelligent recognition, can charge higher batteries first, let mini 3 Pro Fully charge and remove. It can be used as a power bank and battery for easy portability.