Feature:1. COMPATIBLE MODEL: Battery charging hub is an intelligent battery manager for Air 2S and for Air 2, not for Mavic Air, plug and play, you can use with confidence2. CHARGE METHOD: When charging hub used with the for Air 2S or for Mavic Air 2 Original Charger(original charger not included), can charge up to four intelligent flight batteries in sequence according to their power levels, and from high to low3. INPUT AND OUTPUT: 4 in 1 drone battery charging hub input 13.2V, 12.6V 2.82A, output 13.2V 12.6V, charging time about 75 minutes for each battery, about 300 minutes for 4 batteries4. PRODUCT FEATURES: Digital display drone battery charging hub come with LCD display, the charging process can be monitored, can display battery voltage, charging current and overall battery status5. FOLDABLE AND PORTABLE: Drone battery multi charger adopt foldable design, which is conveninet for you to carry and store, very flexible and convenientSpecification:Item Type: Drone Foldable Battery Charging HubColor: BlackInput Voltage: 13.2V 2.82AApplication: For Air 2S, for Mavic Air 2Material: Plastic and electronics.Package List:1 x Drone Foldable Battery Charging Hub1 x User Manual