12BatteryTo Insert the BatteryWhen fitting the battery, face the outside cover of thebattery towards you. Place the top of the battery intoposition and push the lower section of the batteryinto place.☛ Set the battery.☛ Return the battery cover.You can charge the battery whenever you wishwithout affecting the performance of the phone.2 Your N600i automatically switches off if the batterycharge is too low.2 Batteries have a life cycle. If you find that the amount oftimes you have to charge the battery is increasingdramatically, the battery life may be coming to an end.Use only the NEC original or approved batteries.Unapproved batteries can impair the performance of thephone and invalidate the warranty.2 When the battery is not being used for a long period oftime, remove it from your N600i and store in a cool, dryplace.2 A battery that has not been used for a long period of timeneeds to be completely discharged and then rechargedtwo or three times before reaching full capacity.1112About 3mmCheck that there is no gapbetween the rear coverand the phone body.13