For DJI Mini 3/4Pro Drone 37W Battery Charger 3-Way Charging Hub LED Light Features: 1.37W high power input intelligent temperature control charging algorithm, adjust the charging power according to the temperature, safe and faster. 2.LED light illumination 1-5 grades of brightness can be switched cyclically easy to operate, can be used in multiple scenarios multi-purpose to meet the needs of outdoor adventure, night flight.LED light illumination functionLong press the light button more than 2S to turn on the LED light, the default of the second gear brightness mode. Fifth gear for flash mode, long press the light button 2S above to turn off the LED light. 3.Intelligent detection of battery power priority to fill a piece of the highest power battery only for intelligent flight battery charging, the battery will be in accordance with the order of power from high to low sequential charging 4. Built-in multiple safety protection, with over-current, over-voltage, over-temperature and other protection, to protect your battery, fast charging at the same time also brings more safety and security 5. One key storage function in the charging state long press the function button for more than 2S, open 60% storage mode. Convenient for travelling, air transport, long time not using storage. Long press the function button for more than 2S to open the storage mode *When long press the function button again for more than 2S, there are 3 groups of status indicators (4 LEDs) all flashing at the same time for 3 times to switch to 100% mode, also can be restored to 100% mode by power off after the power supply. Specification: 100% brand new Name: Charge Butler Material: ABS+Metal Colour: Grey Output power: 37W Size: 100*55*54mm Charging Method: Charge 3 batteries in sequence Model：For DJI Mini 4 Pro/Mini 3 Attention: Recommended for 30W/65W chargers PD protocol chargers., thanks! Packaging includes: 1*Charging Adapter 1*Storage Bag 1*Instruction manual Note: Package does not include other products such as drone batteries cameras etc. thanks!