To reach the best performance, use a 5V/2A AC adapter and original cable of the devices to charge the power bank. High-speed Charging Input: 5V/2A, can be fully recharged in about 3-5 hours. Output: 5V/2.4A(max), make it charge 1.4X faster than standard charger Note: Not support Qualcomm QC 2.0 / 3.0 function. So QC design phones like Samsung S8, S7, Note 8 can charge at regular maximum speed but not QC mode. 1.5 Charges for iPhone 8 (Choose higher capacity one if you need more charges) 5200mAh capacity charger is more than enough to charge your iPhone 8 for 1.5 times or 1 time for Samsung S8. Perfect for flights, traveling, business trips and no worry about out of battery for one-day outside. Cool LED Flashlight Hold the power button for 3 seconds to turn on/off the LED flashlight. Perfect design for camping, travel, business trip and more. It will be a real help in an emergency. MultiProtect Safety System Intelligent power manage IC protects your devices against over-charged, over-discharged, over-voltage, over-current and short circuit charging accidents. Package Contains 1 x GETIHU 5200mAh Power Bank 1 x USB Charge Cable (recharge for the power bank) 1 x Protective bag 1 x User Manual (No adapter, iPhone cable, Type-C cable included) Warm Tip 1.GETIHU Smart IC Detects your device to deliver its fastest charging speed (2.4A Max) but not support Quick Charge 2.0 & 3.0. So Quick Charge Design models like Samsung S8, S7, Note 8 can charge at maximum regular speed but not Quick Charge. 2. The power bank is not suitable for small current (less than 0.1A) charging devices like Bluetooth Earphone and Smart Watch.