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108 Appendix A Safety and Handling
Keeping iPhone Within Acceptable Temperatures
Operate iPhone in a place where the temperature is always between 0º and 35º C (32º
to 95º F). Battery life might temporarily shorten in low-temperature conditions.
Store iPhone in a place where the temperature is always between -20º and 45º C (-4º to
113º F). Don’t leave iPhone in your car, because temperatures in parked cars can exceed
this range.
When you’re using iPhone or charging the battery, it is normal for iPhone to get warm.
The exterior of iPhone functions as a cooling surface that transfers heat from inside the
unit to the cooler air outside.
Keeping the Outside of iPhone Clean
To clean iPhone, unplug all cables and turn off iPhone (press and hold the Sleep/Wake
button and drag the onscreen red slider). Then use the included cleaning cloth or a
soft, slightly damp, lint-free cloth. Avoid getting moisture in openings. Don’t use
window cleaners, household cleaners, aerosol sprays, solvents, alcohol, ammonia,
or abrasives to clean iPhone.