257 BATTERY PACKS 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)- The Li-Ion battery (optional) is functioning within –20°C to+60°C (–4°F to +140°F)• Use the supplied AC adapter on regular charging. NEVERuse another manufacture’s adapters.• Use the specified chargers (BC-119N, BC-121N andBC-144N). NEVER use another manufacture’s charger.NEVER connect DC power to the transceiver when in-stalling Alkaline batteries. Such a connection will damagethe transceiver.D Recycling information (U.S.A. only)The 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 with, or placing nearmetal objects, carrying in handbags, etc.If your battery pack seem to have no capacity even afterbeing charged, completely discharge them by leaving thepower ON overnight. Then, fully charge the battery packagain. If the batteries still do not retain a charge (or very little),new battery pack must be purchased.Turn the transceiver power OFF when charging the batterypack. Otherwise, the battery pack may not fully charge orcharge properly.