Kenwood announces the immediate availability of lithium polymer batteries, which are light weight and high duty cycle, rated at 3300 mAh for the KNB-43L pack and a new non-rechargeable primary lithium pack, and 4500 mAh with a 10 year shelf life for the the KNB-49PL. The lithium polymer battery weighs 6.34 ounces and is compatible with the KSC-32 charger or the KSC-326K gang charger and is a 7.2-volt DC battery. The primary lithium pack is a 9-volt DC battery with a 20-hour life cycle and is ideal as backup power for portables when charging is not available and in emergency situations.