B a t t e r y i n f o r m a t i o n173. Battery informationYour headset is powered by a rechargeable battery. Take good care of thebattery and follow the guidelines below.Charging and discharging• Note that a new battery's full performance is achieved only after twoor three complete charge and discharge cycles!• The battery can be charged and discharged hundreds of times but itwill eventually wear out. When the operating time (talk-time andstandby time) is noticeably shorter than normal, it is time to buy a newbattery.• Use only batteries approved by the phone manufacturer and rechargeyour battery only with the chargers approved by the manufacturer.Unplug the charger when not in use. Do not leave the batteryconnected to a charger for longer than a week, since overcharging mayshorten its lifetime. If left unused a fully charged battery willdischarge itself over time.• Temperature extremes can affect the ability of your battery to charge.• For good operation times with NiMh batteries, discharge the batteryfrom time to time by leaving your phone switched on until it turnsitself off (or by using the battery discharge facility of any approvedaccessory available for your phone). Do not attempt to discharge thebattery by any other means.• Use the battery only for its intended purpose.hdw-1_2-00.fm Page 17 Wednesday, April 24, 2002 9:24 AM