Section 4A: Important Safety Information 235Important Safety Information 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 for a longperiod of time. It’s best to replace the battery when it no longer provides acceptableperformance. It can be recharged hundreds of times before it needsreplacing. Don’t store the battery in high temperature areas for long periods oftime. 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) BatteriesFor safe disposal options of your Li-Ion batteries, contact your nearestSprint authorized service center.Special Note: Be sure to dispose of your battery properly. In some areas,the disposal of batteries in household or business trash may be prohibited.Radiofrequency (RF) EnergyUnderstanding How Your Phone OperatesYour phone is basically a radio transmitter and receiver. When it’s turnedon, it receives and transmits radio frequency (RF) signals. When you useyour phone, the system handling your call controls the power level. Thispower can range from 0.006 watts to 0.2 watts in digital mode.Knowing Radiofrequency SafetyThe design of your phone complies with updated NCRP standardsdescribed below.In 1991-92, the Institute of Electrical and Electronics Engineers (IEEE) andthe American National Standards Institute (ANSI) joined in updating ANSI’s1982 standard for safety levels with respect to human exposure to RFsignals. More than 120 scientists, engineers and physicians fromuniversities, government health agencies and industries developed thisupdated standard after reviewing the available body of research. In 1993,the Federal Communications Commission (FCC) adopted this updatedstandard in a regulation. In August 1996, the FCC adopted hybrid standard
