Getting started19• Charge the battery for at least 6 hours before you use the handset forthe first time. This protective measure extends the service life of thebatteries.• The batteries attain maximum power output only after severalcharging and discharging cycles.• Do not leave the handset connected to the charger for more than amonth without using it.• You can charge and discharge the batteries hundreds of times, buteventually they wear out. If the operating time (talk and standby time)becomes significantly shorter than usual, replace the batteries.• To maintain optimum operating time, periodically discharge thebatteries by leaving the handset off the charger and switched on, untilthe handset switches itself off. Use only this method to discharge thebatteries.• Extreme temperatures influence the charging capability of thebatteries.Charging and operating timesDischarged batteries require no more than 8 hours to completelyrecharge. Completely charged batteries provide the handset with upto 12hours of talk time and 120 hours of standby time.WARNINGThe talk time and standby time are influenced by theuse of the handset. Influencing these times are e.g.,display activities, alerting, use of Bluetooth, wlkingaround a lot (causing many hand overs), and so on.Your handset displays the battery status accurately aftercharging for at least 6 hours.When removing and replacing the battery pack yourhandset will not give the battery status accurately untilcharging for at least 6 hours.
