B a t t e r y i n f o r m a t i o nCopyright © 2007 Nokia. All rights reserved. 154. Battery informationYour device is powered by a rechargeable battery. The battery can be charged anddischarged hundreds of times, but it will eventually wear out. Recharge yourbattery only with Nokia approved chargers designated for this device.Unplug the charger from the electrical plug and the device when not in use. Do notleave a fully charged battery connected to a charger, since overcharging mayshorten its lifetime. If left unused, a fully charged battery will lose its charge overtime.Never use any charger that is damaged.Leaving the device in hot or cold places, such as in a closed car in summer or winterconditions, will reduce the capacity and lifetime of the battery. Always try to keepthe battery between 15°C and 25°C (59°F and 77°F). A device with a hot or coldbattery may not work temporarily, even when the battery is fully charged. Batteryperformance is particularly limited in temperatures well below freezing.Do not dispose of batteries in a fire as they may explode. Batteries may alsoexplode if damaged. Dispose of batteries according to local regulations. Pleaserecycle when possible. Do not dispose as household waste.