It depends on a couple variables: work cycle, battery chemistry, and charging cycles. Generally, they last a year and a half to two years.
Cost and Dispatch Capabilities. Push a button and be connected to one or one hundred individuals. Two way radios are easy to use with a push-to-talk feature, which enables the user to communicate instantly with anyone of the network. Two way radios are designed to be utilized in extreme conditions and offer rugged features. Flat monthly fee with no per minute airtime cost, unlike cellular phones. Low monthly costs, which include unlimited talk-times.