Nortel Networks 7420 manual Charging battery

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Charging battery

When charging the battery for the first time, it is necessary to leave the handset in the charger for 14-16 hours for the battery to be fully charged.

During normal operation, it takes approximately 3.5 hours to charge the handset from fully discharged to its full capacity.

• Place the handset in the charger.

For correct charging, be sure the room temperature is between 0°C and 25°C. Do not place the handset in direct sunlight. The battery has a built-in heat sensor which will stop charging if the battery temperature is too high.

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Contents Nortel Digital Mobility Handset User Guide Stop Contents Page Getting Started Handset informationBattery information Installing battery Charging battery Checking battery capacity Battery disposal Headset connector Microphone DisplayMenu key Active KeyIdle menu On hook idle Off hook activeHandset display Key On hook idleActive On/Off hook key ActivePage Display softkeys Display backlightChanging Menu Language Adjusting speaker volumeTurning the handset ON/OFF Customizing handset Profile set-upDescription of profile functions Language Dial directly On hook dialling pre-dialDial from your phone book RedialAnswering calls Hold a callMaking or answering a second call Mute a callTo answer a second call while on another call To hold a call and make a second callReplying to messages To view, reply and listen to your messagesMoving around in the Menu Menu structureRedial MENU, using the key See also Redial onMSF-MAIL Menu by pressing R with a long key press Using phone book Using the alphanumeric keyboardStoring a number Key Capital letter Small letterStoring from Redial list Reading Book numbersChanging numbers Deleting numbersUsing text messages MSF Deleting from Redial listReading a MSF mail Replying a MSF mail Forwarding a MSF mailDeleting all MSF mails Deleting a MSF mailLocking/unlocking a MSF mail Writing a MSF mailShortcuts SilentTroubleshooting InformationImportant Safety Instructions and Product Information Exposure to sunlight, heat and moisture Intrinsic safetySpare parts and accessories Power failure Battery PrecautionsPage Page Menu language Menu profile set-up Menu structure Menu mail Menu phone book storing a number Menu phone book reading, deleting, editing a number HD ED1