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How many years does a battery last?

Hytera Lithium-Ion and Lithium polymer batteries typically support around two years of charging cycles (the number of times the batteries can be drained and charged). These batteries should be replaced every two to three years.

What is a 5/5/90 Battery Duty Cycle

Handheld radio battery life is calculated based on the 5/5/90 duty cycle of 5% of the time the radio is transmitting calls, 5% of the time the radio is receiving calls, and 90% of the time the radio is on but idle.  Note that some calculations are based on a 10/10/80...
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