Publication No. HRMCP9 Rev. B
Specifications 67
Figure 8-2 Battery Current Versus Time
8.8.2
Powered by the System
If power to the board is supplied by the system then the battery is not supplying
power to the clock circuits. However, self-discharge happens. Typical self-discharge
rates are less than 0.3 percent per year with respect to a fully loaded battery at an
ambient temperature of 25 °C. Self-discharge rates increase by less than 3 percent per
year for temperature values up to 95 °C.
The battery has a user accessible holder on the CR9.
Discharge Battery - BR1225
0,01
0,10
1,00
10,00
100,00
0,1
1
10
100
Discharge Current [µA]
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Battery -BR1225