““need a compatible AC adapter (sold separately) for the USB cable. When your Kindle is charging, a lightning bolt appears on the battery icon at the top of the Home screen. The indicator light on the bottom edge will turn amber while the battery is charging and green when it is fully charged. Charging should take less than four hours using a Kindle AC adapter. Charging using 3rd party adapters or via USB should take less than four hours, but may take longer depending on the capability of the hardware. You can still use your Kindle while it is connected to your computer and charging via USB. To do so, unmount or eject it so that your Kindle exits USB drive mode. Windows: Right-click on the "Safely remove hardware" icon in the lower right-hand corner of the task bar and follow the onscreen instructions””
