B a t t e r y i n f o r m a t i o n75Copyright © 2007 Nokia. All rights reserved.20. Battery information■ Charging anddischargingYour device is powered by arechargeable battery. The fullperformance of a new battery isachieved only after two or threecomplete charge and discharge cycles.The battery can be charged anddischarged hundreds of times but itwill eventually wear out. When the talkand standby times are noticeablyshorter than normal, replace thebattery. Use only Nokia approvedbatteries, and recharge your batteryonly with Nokia approved chargersdesignated for this device.Unplug the charger from the electricalplug and the device when not in use.Do not leave a fully charged batteryconnected to a charger, sinceovercharging may shorten its lifetime.If left unused, a fully charged batterywill lose its charge over time.Use the battery only for its intendedpurpose. Never use any charger orbattery that is damaged.Do not short-circuit the battery.Accidental short-circuiting can occurwhen a metallic object such as a coin,clip, or pen causes direct connection ofthe positive (+) and negative (-)terminals of the battery. (These looklike metal strips on the battery.)This might happen, for example,when you carry a spare battery in yourpocket or purse. Short-circuiting theterminals may damage the battery orthe connecting object.Leaving the battery in hot or coldplaces, such as in a closed car insummer or winter conditions, willreduce the capacity and lifetime of thebattery and its ability to charge.Always try to keep the battery between15°C and 25°C (59°F and 77°F).A device with a hot or cold battery maynot work temporarily, even when thebattery is fully charged. Batteryperformance is particularly limited intemperatures well below freezing.Do not dispose of batteries in a fire asthey may explode. Batteries may alsoexplode if damaged. Dispose ofbatteries according to localregulations. Please recycle whenpossible. Do not dispose as householdwaste.