A927ZET Technical Information Manual
15
Battery measurement and behaviour
There are several options to verify the battery status.
To verify if the battery level is low, just read the failure code in the control register: the code 7 identifies a Battery Low
Status (<2 V).
To verify the level of the battery, you have to enable the battery logging, and then to read the last sample value.
If you want to monitor the battery behaviour (for example during thermal stress), enable the battery logging with both
continuous sampling mode and sensor data (or time-stamped data) storing mode: with this configuration the tag is
continuously logging the measured data (with the defined interval). The tag stores the sensor data and you have a
complete history of the battery behaviour.