20000mAh Digital Display Portable Power Bank Premium Black with Usb Light as Gift【1-Pack 20000mAh Power Bank】One 20000mAh battery not only for portable charging but also around the home. Allowing you charge mobile devices without having to be tethered to a plug socket. 【Dual Output & Input】Each has 2 USB output ports that detect all the connected devices and efficiently distributes the current output up to 5V 2.4A. The USB C and Micro USB ports can fully refill the battery itself in 5 hrs at 5V 2.0A.【Reliable Li-polymer Cell】Thanks to the Li-polymer battery pack, the charger is much safer than any Li-ion charger. Also, it's more light and slimer that you can easily carry it around, even on airplanes.【Small & Slim】It feels incredibly compact for a 20000mAh power bank, weighing just about 400g and very thin. RichRipple design is easy to hold, easy to toss into a bag and incredibly portable.【What You Get】1 * RichRipple 20000mAh USB Portable Power Bank( Black); 1* USB Cahrging Cable; 1 * User Manual; 1*Usb Light as gift.Package Details：1 x 20000mAh power bank with retail box1 x Charging Cable1 X Use Manual1X Usb Light（Random Color ）Specifications :Capacity : 20000mAh/3.7V,111WhOutput : 5V 2.1AInput : 5V/2.1ASize: 145×67×27.5cmColor: BlackHow to use our RichRipple power bank and flashlight: press the switch twice or long press the switch to turn it on, and press the switch once or twice to turn it off. Notice : The first time you receive a power bank, it is virtual power showing. Please fully charge the power bank to 100%, and then use the power bank to the shutdown state (don't charge the power bank during this cycle, regardless of the number of using) until it reaches 0% blink and shut down, and then recharge the power bank to 100% again. Follow the above steps to use it more than 3 times. At this time, the digital display is the most accurate! The above is the process of power bank intelligent learning power storage.