54Before a new model phone is available for sale to thepublic, compliance with the European R&TTE Directivemust be shown. This directive includes as one of itsessential requirements the protection of the health andsafety of the user and any other person.Precautions when using batteries• Never use a charger or battery that is damaged inany 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 time aregreatly affected by the signal strength on the cellularnetwork and the parameters set by the serviceprovider.• Battery charging time depends on the remainingbattery charge, the type of battery, and the chargerused. The battery can be charged and dischargedhundreds of times, but it will gradually wear out.When the operation time is noticeably shorter thannormal, it is time to buy a new battery.• If left unused, a fully charged battery will dischargeitself over time.• Use only Samsung-approved batteries, and rechargeyour battery only with Samsung-approved chargers.Disconnect the charger from the power source whenit is not in use. Do not leave the battery connected toa charger for more than a week, since overchargingmay shorten its life.• Extreme temperatures will affect the chargingcapacity of your battery: it may require cooling orwarming first.