1. Can check the battery level 2. Charging: up to 3 batteries can be put in (Mini3 Pro/Mini 3 standard battery and long-life battery can be together). 3. Storage mode: In the charging mode, press and hold the function button for 2 seconds to switch to the storage charging mode. The storage mode can automatically stop charging the battery with less than 60% power to 60-65%, which is very suitable for long-term battery storage. Tip: Only batteries with less than 60% power can be stored and , and the storage function cannot be used when the power is 60% 4. The Mini3 Pro/Mini 3 battery can be converted into a charging bank to charge other USB devices. 5. Support PD fast charging Parameters: Input: 5V/9V/12V/15V/20V-3A Output: 8.5V/2.5A * 3 Dual channel output: 8.5V/3.5A * 2 USB output: 5V/2A (max) Charging time: input equal PD 65W to fill three 2453mAh batteries for about 60 minutes; 3850mAh long battery life about 83 minutes Compatibility: applicable to Mini3 Pro/Mini 3 standard battery and battery Colour:grey Material:plastic Package Contents: 1 x charger 1 x USB-A to USB-C charging cable 1 x USB-C to USB-C charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.