- Mobile portable external battery charger - Built-in flashlight - Includes Micro-USB power cable Extend and recharge your smartphone, tablet, e-readers and MP3 players battery. It has built-in LED flashlight with high capacity 4800mAh compact design allows you to carry it in your pocket or purse. Use existing device cable to connect to the power bank or use the included 10.5 Inches Micro-USB power cable. Battery LED status indicator shows remaining battery level.