10000mAh power bank can fast charge your devices up to 18W Max. Charge up to 3 devices at the same time How to charge the power bank: • Charging will automatically start as soon as the power bank is connected to a power outlet • Connect to a power outlet using the USB A-C cable (included) or USB C-C cable to charge up the power bank in ultra-speed. Or use a Micro USB cable for regular speed LED power indicator lights: • Press power button once to turn ON LED lights to view battery level • Lights will auto shut off after 35 seconds if power bank is not in use • 4 lit up LED lights mean power bank is fully charged How to charge devices: • Charging will automatically start as soon as the device is connected to the power bank • Use the USB A-C cable (included) or USB C-C cable to charge your Android devices • Use a Lightning to USB-A or Lightning to USB-C cable to charge your Apple devices • The port being used auto detects the maximum wattage the device requires to charge at its optimal speed (up to 18W)