Features: brand new and high quality Short circuit for protection, multiple safety for protection, intelligent micro-processing chip, effectively control short-circuit overload and overvoltage. Upgrade chip technology, fast charge and smarter, with fast charge for protection function to protect the battery. Support original charge when the battery fix in the helicopter , still support charge by the usb charger. Comes with protective plate can prevent excessive overcharge Three batteries charging at the same for time,can save a lot of for time. With Type C cable,you can charge cellphone or tablet with Type C port. Specifications: Material: Plastic Input:DC 5V 2-4A Recommended: for DC 5V 3A Branch Output: MAX 4.35V 1A Charging time: 70 mins for 3 batteries Color: Black Size: Approx.7.3x5.2x5.5cm/2.87x2.04x2.16 inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Charging Box 1x Type C cable