NEC e616 User Guide - Page 25

Even if the handset remains connected to the charger, battery residual capacity may decrease when the handset is used. The battery must be charged in the room temperatures between 0°C and 45°C. Ensure that your handset is switched off. If the handset temperature is high, wait until it returns to a normal temperature. The recommended battery charge time is approximately two hours. Stop charging the battery if charging is not completed within five hours. When charging the battery, always fold and close the handset. If the handset is left open while charging, it may take longer to complete the charge. Low Battery Alarm The battery power level (4 levels) is indicated by the following icons: Empty Battery Low Battery Medium Battery Full Battery When the battery runs out, the following image will blink on the display. A low-power warning alarm sound will come on for approximately 10 seconds. Press the End key to turn off the alarm. After approximately one minute, the power will be turned off. During a call, the image and an intermittent alarm sound indicate low-power. After approximately 60 seconds the call will be disconnected. The volume level of the low-power warning alarm depends on the ringtune volume level on standby and the ear piece volume during a call. Setup -8-