188 4A. Important Safety Informationfee may be applied to exchanges. Visit www.sprint.com/returnsfor details.) More information about hearing aid compatibilitymay be found at: www.fcc.gov, www.fda.gov, andwww.accesswireless.org.Getting the Best Hearing DeviceExperience With Your PhoneTo further minimize interference: Set the phone’s display and keypad backlight settings toensure the minimum time intervals.1. Press > and touch Settings > Sound &display > Brightness, or Screen timeout.2. Touch the minimum time interval setting. Position the phone so the internal antenna is farthest fromyour hearing aid. Move the phone around to find the point with leastinterference.Caring for the BatteryProtecting Your BatteryThe guidelines listed below help you get the most out of yourbattery’s performance. Recently there have been some public reports of wirelessphone batteries overheating, catching fire, or exploding. Itappears that many, if not all, of these reports involvecounterfeit or inexpensive, aftermarket-brand batteries withunknown or questionable manufacturing standards. Sprint isnot aware of similar problems with Sprint phones resultingfrom the proper use of batteries and accessories approvedby Sprint or the manufacturer of your phone. Use only Sprint-approved or manufacturer-approved batteries andaccessories found at Sprint Stores or through your phone’smanufacturer, or call 1-866-866-7509 to order. They’re alsoavailable at www.sprint.com — click Accessories. Buying theright batteries and accessories is the best way to ensurethey’re genuine and safe. In order to avoid damage, charge the battery only intemperatures that range from 32° F to 113° F (0° C to 45° C). Don’t use the battery charger in direct sunlight or in highhumidity areas, such as the bathroom. Never dispose of the battery by incineration. Keep the metal contacts on top of the battery clean. Don’t attempt to disassemble or short-circuit the battery. The battery may need recharging if it has not been used fora long period of time. It’s best to replace the battery when it no longer providesacceptable performance. It can be recharged hundreds oftimes before it needs replacing. Don’t store the battery in high temperature areas for longperiods of time. It’s best to follow these storage rules: Less than one month:-4° F to 140° F (-20° C to 60° C) More than one month:-4° F to 113° F (-20° C to 45° C)SPH-M900.book Page 188 Thursday, May 20, 2010 7:36 PM