2.3.2 Via the USB Power Adapter1. Turn off the scanner.2. Connect the micro USB connector to the USB port of the scanner.3. Connect the other USB connector to the USB port of the USB Power Adapter.Important: For first-time use, please charge the battery for at least 4 hours. While charging the battery, the blue LED light will be solidly on. After the charging iscompleted, the LED light will be extinguished. When the battery is fully charged, an A4-sized of page can be scanned for 200 timesat 300 dpi (or 150 times at 600 dpi)!USB PowerAdapter2-4