22BATTERY CHARGING9 Battery chargingPrior to using the transceiver for the first time, the batterypack must be fully charged for optimum life and operation.CAUTION: To avoid damage to the transceiver, turn thepower OFF while charging.• Recommended temperature range for charging:+10°C to +40°C (+50°F to +104°F)• Use the specified chargers (BC-158, BC-119N andBC-121N). NEVER use another manufacture’s charger.• Use the supplied AC adapter for the BC-158. NEVER useanother manufacture’s adapters.NEVER connect DC power to the battery case when in-stalling Alkaline batteries. Such a connection will damagethe transceiver.D Recycling informationThe product that you have purchased contains arechargeable battery. The battery is recyclable.At the end of its life, under various state andlocal laws, it may be illegal to dispose of this bat-tery into the municipal waste stream. Call 1-800-822-8837 for battery recycling options in yourarea or contact your dealer. Battery cautionsCAUTION! NEVER insert battery pack/transceiver(with the battery pack attached) with wet or soiled into thecharger. This may result in corrosion of the charger terminalsor damage to the charger. The charger is not waterproof andwater can easily get into it.NEVER incinerate used battery packs. Internal battery gasmay cause an explosion.NEVER immerse battery pack in water. If the battery packbecomes wet, be sure to wipe it dry immediately (particularlythe battery terminals BEFORE attaching it to the transceiver).NEVER short the terminals of the battery pack. Also, cur-rent may flow into nearby metal objects, such as a necklace,etc. Therefore, be careful when carrying in a pocket, back-pack or handbag, and when placing the radio near metal ob-jects.If your battery pack seem to have no capacity even afterbeing charged, completely discharge it by leaving the powerON overnight. Then, fully charge the battery pack again. If thebatteries still do not retain a charge (or very little), new bat-tery pack must be purchased.Turn the transceiver OFF when charging an attached bat-tery pack. Otherwise, the battery pack may not become full-charging or may not charge properly.