User's Manual

ANT C7 RF Transceiver Module Page 17 of 20
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where:
T
BAT
– Expected battery life of the system
C
BAT
– Battery capacity
T
Operation_Cycle
– Operation cycle over which usage is calculated
T
Active
– Active time in transmit mode
I
Ave
– Average current consumption in active mode
T
Idle
– Time in non-active mode (off)
I
Idle
– Average current in idle mode
For example, for a system using a CR2032 coin cell batter transmitting at 0.5Hz broadcast for 1 hour per day, the
battery life of the system can be calculated as follows:
T
BAT

220mAh· 24h
󰇛
1h· 25.41μA
󰇜

󰇛
23h·0.91μA
󰇜
 12.7 years
Please note that the above example assumes that 100% of the battery capacity can be dedicated to the ANT
portion of the system.
An online power consumption estimator is provided at http://www.thisisant.com/calculator