200 Section 4A. Important Safety InformationCaring 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 1-866-343-1114 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)Disposal of Lithium Ion (Li-Ion) BatteriesDo not handle a damaged or leaking Li-Ion battery as you canbe burned.For safe disposal options of your Li-Ion batteries, contact yournearest Sprint authorized service center.Special Note: Be sure to dispose of your battery properly. Insome areas, the disposal of batteries in household or businesstrash may be prohibited.Sprint M540.book Page 200 Tuesday, April 7, 2009 3:38 PM