NITECORE NB20000 Ultra Lightweight USB Power Charger 20,000mAh[ HIGH CAPACITY ] 20,000mAh 3. 85V [ DURABLE ] Constructed with Carbon Fiber Polymer Hollowed Frame [ POWERFUL ] Can charge a smart phone up to 6. 5 times [ TSA APPROVED ] In according to the UN38. 3 Standard with a rated capacity less than 100Wh, the NB20000 can be your worry free power compan while traveling. [ MULTI PORTS ] two USB A output ports for simultaneously charging multiple devices, a single dual input output USB C port, and a dedicated