40V Charger. 1 Cell below 100-50mV

FSM details

c++
1	"Entered state INIT"
1	"Log: 'Initializing environment...'"
1	"Log: 'Environment initialized !'"
1	"Log: 'Initializing battery IC...'"
1	"Log: 'Battery IC initialized !'"
1	"Log: 'Configuring battery IC...'"
2	"Log: 'Battery IC configured !'"
2	"Log: 'Initializing SoH...'"
2	"Log: 'SoH initialized !'"
2	"Log: 'Waiting for BQ cells readings...'"
3	"Log: 'Initializing SoC...'"
3	"Log: 'SoC initialized !'"
3	"Log: 'State fields initialized!'"
3	"Log: 'Battery initialization complete!'"
3	"Left state INIT"
3	"Entered state IDLE"
3	"Log: 'transitioning from INIT to IDLE'"
49	"Left state IDLE"
49	"Entered state CHARGE"
49	"Log: 'Charge enters charge-and-balance mode'"
49	"Log: 'transitioning from IDLE to CHARGE'"
6737	"Log: 'Charger is stopping giving current. Current: -0.400000 A'"
6737	"Log: 'Charge leaves charge-and-balance mode'"
6737	"Log: 'Charge enters final-balance mode'"
47343	"Log: 'Battery is balanced'"
47343	"Log: 'Last Charge FSM state: final-balance'"
47343	"Left state CHARGE"
47343	"Entered state IDLE"
47343	"Log: 'transitioning from CHARGE to IDLE'"
50945	"Left state IDLE"
50945	"Entered state SHUTDOWN"
50945	"Log: 'transitioning from IDLE to SHUTDOWN'"
50945	"Log: 'Battery IC FETs closed!'"
50945	"Log: 'Battery IC FETs closed!'"
50945	"Log: 'Battery IC FETs closed!'"

21-10_fullcharge_40V_1cellbellow.dat

44926.1KB

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Everything works as expected. Final balance is entered. All cells are getting balanced to the lowest cell. Once balanced, state is leaved.

Temperatures

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IC temperature raises up of 25°C. It’s < 30°C. It also stays under 70°C, the max IC temp where it stops balancing to cold down.