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NOOK User Guide Power and Charging 18
When the battery charge is critically low (too low for continued operation), your NOOK displays a
message to charge it and shuts down. The critically low battery level is about 5%.
You must charge your NOOK before using it. It will charge faster using the power adapter. When
your NOOK has enough charge to run, it will start, but remember that it still has very little charge.
You can use it, but should continue charging it.
Battery Charge and Charging Indicators
Your NOOK ships with a partially charged battery. We recommend that you charge your NOOK
before using it.
Your NOOK has the following indicators of the battery charge and charging.
Battery Charge Indicators
Your NOOK indicates in two places the amount of charge remaining in the battery:
• With an icon in the status bar:
Battery charge levels when your NOOK is not charging (from low to full charge):
Battery charge levels when your NOOK is charging (from low to high):
• With a percentage of full charge on the Settings page. The percentage is updated when
the battery charge changes.
In some cases, the Battery Charge on the Settings summary reads Not available. This is normal.
It means that the software that reads the charge got some readings that it could not interpret.
After a few minutes, your NOOK will get more readings and display the battery charge.
Charging Indicators
Your NOOK indicates in two places when it is charging the battery:
• With a charging indicator light next to the data/charging port. When your NOOK
is charging, the charging indicator light to the left of the USB port lights up yellow. When the
device is not charging or is fully charged, the charging indicator light is not lit.