99Health and SafetyInformationPrecautions When Using BatteriesYour phone is powered by a rechargeable Li-ionstandard battery.• Never use any charger or battery that is damagedin any way.• Use the battery only for its intended purpose.• If you use the phone near the network’s basestation, it uses less power; talk and standby timeare greatly affected by the signal strength on thecellular network and the parameters set by thenetwork operator.• Battery charging time depends on the remainingbattery charge and the type of battery and chargerused. The battery can be charged and dischargedhundreds of times, but it will gradually wear out.When the operation time (talk time and standbytime) is noticeably shorter than normal, it is timeto buy a new battery.• If left unused, a fully charged battery willdischarge itself over time.• Use only Samsung-approved batteries andrecharge your battery only with Samsung-approvedchargers. When a charger is not in use, disconnect