Since you have a China model, you should charge to 100% for optimal battery health.
What’s your total number of charging cycles?
Or at least can you share the lifetime odometer and average speed?
Yearly degradation isn’t an accurate measure…
How many miles or kilometers? How many full charging cycles have you completed?
I get downvoted every time I mention this, but it’s true. I noticed an immediate 5% drop in health the very first time I supercharged at about 4,000 miles. I kept detailed records with TeslaMate.
It’s a Chinese car; what do you expect?