Hi,
since we want to tell the user when the lead acid batteries should be exchanged we rely on a good state of health value.
SLUSBZ5A says:
8.3.2.10 StateOfHealth(): 0x2E/0x2F
This read-only command pair returns an unsigned integer value, expressed as a percentage of the ratio of
predicted FCC (25°C, SOH current rate) over the DesignCapacity(). The FCC (25°C, SOH current rate) is the
calculated full charge capacity at 25°C and the SOH current rate that is specified in the data flash (State of
Health Load). The range of the returned SOH percentage is 0x00 to 0x64, indicating 0% to 100%,
correspondingly.
So it depends additionally on the SOH Load (Dataflash: SOH Load I Min: –32767 Max: 0 Default: –400 mA).
What does this parameter actually mean? Is it the average estimated/expected current load during discharge?
Sebastian