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NOOK User Guide Safety and Care 38
• Only use the battery for the system for which it is specified.
• Only use the battery with a charging system that has been qualified with the system per this
standard. Use of an unqualified battery or charger may present a risk of fire, explosion, leakage,
or other hazards.
• Do not short circuit a battery or allow metallic conductive objects to contact battery terminals.
• Replace the battery only with another battery that has been qualified with the system. Use of an
unqualified battery may present a risk of fire, explosion, leakage, or other hazards.
• Promptly dispose of used batteries in accordance with local regulations.
• Battery usage by children should be supervised.
• Avoid dropping the device or battery. If the device or battery is dropped, especially on a hard
surface, and the user suspects damage, take it to a service center for inspection.
• Improper battery use may result in a fire, explosion, or other hazards.
• For battery charging through USB, only connect your NOOK to products that bear the USB-IF
logo or have completed the USB-IF compliance program.
Use on Airplanes
Your NOOK is a portable electronic device, and as its use on airplanes is regulated. Here is the
story:
• Always obey the instructions of the flight crew. They will inform you when you can and cannot
use portable electronic devices.
• Before pushback from the gate, you can use your NOOK with Airplane mode on or o. This is
the time to set Airplane mode to on, if you haven’t already done so.
• During takeo, your NOOK must be turned o (not just asleep) and stowed. You cannot use it.
• At cruising altitude, when instructed by the flight crew that portable electronic devices are
permitted, you can use your NOOK with Airplane mode on.
• During landing, your NOOK must be turned o and stowed. You cannot use it.
• After landing, you can use your NOOK with Airplane mode on or o.
Also remember that, on an airplane, material you read should be appropriate for a public setting.
Turning Airplane mode On and O
Turning Airplane mode on turns the wireless circuitry o. Your NOOK will not send or receive
radio signals until Airplane mode is turned o.