Feature:1. THREE SLOT CHARGER: The for X4 charger has three power slots and can charge three batteries simultaneously via a USB C cable. When not in use, you can store the memory card(not include) in the card slot2. FAST CHARGING: For X4 battery charging hub input 5V 3A, output 4.4V 1.5A(maximum), 4.4V 1.1A(min), each charging slot work independently3. SMART LED DISPLAY LIGHT: Pay attention to the smart charge indicator LED of the for X4 battery charger, which turn yellow when charging and green when fully charged4. SAFETY PROTECTING: For X4 charging station built in protecting circuit, with overcharge, overcurrent, overdischarge, short circuit, surge and overvoltage protecting functions to ensure your safe use5. LONGER BATTERY LIFE: The for X4 battery capacity increase around 27% than last edition, the runtime increase around 67% than last edition. A 2500mAh high capacity for X4 battery allow 120 mins to 135 mins of shooting at 5.7K 30fpsSpecification:Item Type: Action Camera Battery ChargerBattery Charger: Application: For X4Input Voltage: TYPE C 5V3AOutput Voltage: 4.4V 1.5A(maximum); 4.4V 1.1A(min)Replacement Battery: Application: For X4Rated Capacity: 2500mAhRated Voltage: 3.85VCharging Voltage: 4.4VBattery Type: 2 x 2500mAh lithium batteryMaterial: Plastic and electronics.Package List:2 x Replacement Batteries2 x Battery Portable Protective Case1 x Three Battery Charging Hub1 x Charging Hub Power Cable1 x Charging Hub User ManualNote:This charger is only available for X4 cameras.