Nokia Wireless Headset HS-11W User Guide - Page 18
Battery information
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4. Battery information Your device is powered by a rechargeable battery. Take good care of the battery and follow the guidelines below. ■ Charging and Discharging Your device is powered by a rechargeable battery. The full performance of a new battery is achieved only after two or three complete charge and discharge cycles. The battery can be charged and discharged hundreds of times but it will eventually wear out. Recharge your battery only with Nokia approved chargers designated for this device. Unplug the charger from the electrical plug and the device when not in use. Do not leave the battery connected to a charger. Overcharging may shorten its lifetime. If left unused, a fully charged battery will lose its charge over time. Temperature extremes can affect the ability of your battery to charge. Use the battery only for its intended purpose. Never use any charger or battery that is damaged. Leaving the device in hot or cold places, such as in aclosed car in summer or winter conditions, will reduce the capacity and lifetime of the battery. Always try to keep the battery between 15°C and 25°C (59°F and 77°F). A device with a hot or cold battery may not work temporarily, even when the battery is fully charged. Battery performance is particularly limited in temperatures well below freezing. Do not dispose of batteries in a fire! Dispose of batteries according to local regulations. Please recycle when possible. Do not dispose as household waste. Copyright © 2004 Nokia. All rights reserved. 18