Mg4 SR battery capacity

[Bam Bam]

it is capacity show as 40kw, it uses only %80 percent of full capacity,

Where do you see this capacity? Is it from OBDB scanning data? Or is just your calculation based on what you used to get?

Is the range prediction also impacted accordingly?

So the possibilities I can think of are:

• Sudden degradation of battery
• Some sort of software issue that is limiting battery capacity
• Some change (other than degradation) in the BMS readings that has caused this change

Maybe someone will have a useful suggestion.

I would be tempted to take it to a dealer if you can't get any useful advice from this community, but they might try to charge you to investigate or do anything about it.