Power Bank Case 20000mAh Dual USB 4X 18650 Battery Charger DIY Box Kit For Phone
Support Battery: 4 x 18650 Batteries (Batteries Not Included). 1 x 18650 Battery Case（Batteries Not Included ）. Four Grid LED Power Indicator: 25%, 50%, 75%, 100%. Input Interface: Micro USB. Output Interface: Dual USB Ports.