141ENCharging the batteryFor customers in Germany:Olympus has a contract with the GRS (Joint BatteryDisposal Association) in Germany to ensureenvironmentally friendly disposal.Recommended temperature range of use:During operation:0°C - 42°C/ 32°F - 107.6°FCharging:5°C - 35°C/ 41°F - 95°FStorage for a long period:–20°C - 60°C/ –4°F - 140°FUsing the battery outside the above temperaturerange may result in declining efficiency and shorterbattery life.Notes• When disposing batteries, always observe thelocal laws and regulations. Contact your localrecycling center for proper disposal methods.• If battery is not fully discharged, protect it againstshort-circuiting (e.g. by taping the contacts)before disposal.Notes• Charge the battery frequently during the firstperiod of use. The battery will perform betterafter several charge/discharge cycles.• Models of batteries different from the includedone may not be charged.• Charging battery via the USB cable connectionmay not be successful depending on the powersupply capacity of your PC. Use the AC adapterinstead.• Do not set or remove the recorder from thedocking station while operating.• Do not charge the recorder through a USB hub.• Do not attach or remove the battery if the USBcable is connected.Using the lithium ion batteryThe included battery is exclusively for use with theOlympus voice recorder DS-7000. Do not use incombination with other electronic equipment.Cautions concerning the batteryRead the following instructions carefully when youuse the battery.Discharging:Rechargeable battery self-discharges while not inuse. Charge it regularly before use.Battery life:Over time, rechargeable battery gradually weardown. When the operating time becomes shortereven if the rechargeable battery is fully chargedunder the specified condition, replace it with a newone.Operating temperature:Rechargeable batteries are chemical products.Battery efficiency may vary even when operatingwithin the recommended temperature range.This is an inherent nature of these products.Charging the battery