Installation and commissioning74 Aastra 620deud-1094/1.3 – I7.9 – 02.2010BatteryTake also note of the safety information on handling the battery set out in Chapter "Dealing withbatteries", page 9.■ Inserting the battery1. Push the battery cover downwards until it is released from the lock, then take it off.2. Insert the battery with the contacts downwards.3. Replace the battery cover and push it upwards until it locks.■ Charging the batteryThe batteries are supplied uncharged. To charge the batteries, place the phone in the chargingbay.It is only after the battery has been charged for the first time that your phone is ready for use,that calls can be answered and that you can make calls from the phone.Notes:• It takes several charging cycles before a new battery reaches full capacity.• The technical data can be found in the Chapter "Technical Data", page 79.• The descriptions of the display symbols can be found in the Chapter "Display symbols", page 5.