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NOOK User Guide Safety and Care 40
Temperature Ranges
Your NOOK should function as designed in these temperature ranges:
Use Fahrenheit Celsius
Charging 41– 95 ºF 5 – 35 ºC
Operation 32 – 104 ºF 0 – 40 ºC
Storage 5 – 113 ºF -15 – 45 ºC
Outside of these ranges, your NOOK might develop power, display, and/or software issues. If
temperatures are extremely cold or hot, permanent physical damage can result. Such damage is
not covered by the warranty. Storage applies to temporary locations like the trunk of your car (or
other motor vehicle) as well as long-term storage.
Even on a day that is not very hot, the passenger compartment or trunk of a car can be
extremely hot. Do not leave your NOOK in a car.
High storage temperatures reduce battery life. For more information, see “Charging
Recommendations” on page 22.
Water and Weather
Your NOOK has a degree of water resistance, for example, to a misty fog. (We do want San
Francisco residents to buy NOOKs.) If your NOOK gets damp, just dry the surface with a clean, dry
cloth before you put it away. But don’t let your NOOK get too wet. It is not water proof. If it does
get wet, let it dry completely before using it.
Reading Screen
You do not need to touch the reading screen, and should try to not do so. Fingerprints can
permanently damage the reading screen if they are not removed. If the screen gets fingerprints,
grime, dust, or water on it (or for that matter, red wine, spaghetti sauce, or mustard), you should
clean it with a damp soft cloth (for example, a micro-fiber cloth). Do not use any chemicals to clean
the reading screen.
The reading screen has a scratch-resistant coating, but it is possible to scratch the screen, so you
should clean it carefully. Keeping the screen clean in the first place is a better strategy than cleaning
it. You should clean it infrequently, not often.
Color Touchscreen
The color touchscreen is meant for touching, but you should also clean it. You might clean it after
several days of use, or if you notice the screen needs cleaning. Clean the touchscreen with a damp
soft cloth (for example, a micro-fiber cloth). Do not use any chemicals to clean the touchscreen.