B a s i c s [ 2 7 ]Cleaning the Battery Charging ContactsTo maintain a good charge, it is important to clean the charging contacts on thehandset once a month. Using water only, dampen a cloth to clean the chargingcontacts. Then make sure to go back over the charging contacts with a dry clothbefore returning the handset to the base to charge.Caution: Do not use paint thinner, benzene, alcohol, or other chemical products.Doing so can discolor the surface of the telephone and damage the finish.General InformationThe phone complies with FCC Parts 15 and 68. Operating temperature:0 °C to +50 °C (+32 °F to +122 °F)AC Adapter InformationInput Voltage: 120 AC 60HzOutput Voltage: 9V DC 350mABattery InformationCapacity: 800mAh, 3.6VRecharge your phone on a regular basis by returning the handset to the base after each phone call.When the operating time becomes short even after the battery is recharged, please replace the battery.With normal usage, the battery should last about one year.Specifications, features, and availability of optional accessories are all subject to change without priornotice.Replacement Item Part NumbersDescription Part NumberAC Adapter For Base 730635Belt Clip 730636DTR-1R-2 Dterm Analog Cordless II 730093Replacement Battery 730637Wall Mount Plate 730638contactsnote• To avoid damage to the phone use only the NEC replacement batteries, base and charger with your phone.• If the handset is left off of the base, the actual Talk mode duration will be reduced respective to the amount oftime the handset is off the base.