Chapter 12 Absolute System ASDA-A2
Revision February, 2017 12-3
Battery Life
Above figure comes from EVE Energy Co. ER14505 Discharge Characteristics
(1) The above figure illustrates the discharge current curve generated by constant current test.
According to the testing result shown on the graph above, when the power consumption of an
absolute encoder is 65uA or lower, if the voltage of the battery keeps 3V or higher, the
expected battery life is about 21900hr, approximately 2.5 years
(Note)
. Therefore, the lowest
voltage level of battery for an absolute encoder is set to 3.1V.
(2) The battery life expectancy is about 5 years and is able to provide 3.6V or higher voltage under
normal temperature and humidity conditions.
NOTE
The battery life was measured when one single battery box is connecting to
one servo drive and one servo motor.
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