Hello!
We have problems with charging the SC66-ENB-64GB-UGAD processor module.
Our device uses batteries with over-discharge protection (BMS).
The parameters of our battery are 1S2P 3.7V 7200mAh.
At a voltage of about 2.95V, the battery go into deep discharge and the battery management system (BMS) will be triggered.
The tablet cannot independently exit the state of a deeply discharged battery (2.95V and below), when the battery management system (BMS) has been triggered.
We think that the processor module cannot charge a deeply discharged battery because the battery management system (BMS) disconnects the battery and the processor module does not see the voltage on the battery contacts.
Is it possible to disable the software protection “do not charge the battery if it is not there”?
Thanks!
hi，
I want to confirm that have your team shipped the battery to Quectel for curve calibration?
Thanks.
Unfortunately no, we need to send the battery to China and wait about three months, and we need to urgently resolve this issue. Is it possible to resolve this issue without this procedure? Maybe there is some temporary solution?
Thanks!
HI
If you use other dtsi file for your battery, it will bring unexpected behavior and the battery can’t work normally.
Thanks.
Did I understand correctly that all battery behavior is determined by the dtsi file?
Is it possible for us to take the charge curve and generate profile data and dtsi file ourselves?
Thanks!
hi，
We need to send the battery test data to Qcom, Qcom will use the data to generate dtsi file using their tool.
Thanks.