Hello,
I'm doing a new post on my issue because I have new information and context changed.
We are using a 6 cells (LGC 18650 MG1 - ChemID 287) battery with 2850 mAh. Our application is to drive a brushless motor every 1s, stop it for 1s and do it again continually 24h/24h. So the load is really not constant. The gauge used is the BQ27510-G3.
The system is working really well, StateOfCharge is really correct and TimeToEmpty too. But after a few cycles (it was 6, but now is most after 15 cycles) of charge / discharge (2h/2h or 6h/6h), StateOfCharge starts good from 100% and stops after a few minutes to a value (never the same, 79%, 42%, it changes each time) and stays to the end of the discharge to this value. After that, on the next discharge, the StateOfCharge never move from 100% and TimeToEmpty increases each cycle.
Please see on the picture attached (only discharge cycle are logged). On the 16th cycle the % (in green) stops is value to 79%. After that TimeToEmpty (in blue) will growing up without stopping.
We tried many many things to correct this but we never found a solution ! IT_Enable is enabled and the component is sealed. The only way we found is to make a Reset to unblock the value.
Could somebody help us to find a solution ? It is difficult to the system on this state.
Please find attached config files (SREC file (zipped) and export from Flash XLS) from the device.
Thanks in advance.
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