u/Alx05

Recently bought a used 21 M3LR with very low mileage, around 23k km. Had it for about 1.5 months, but only needed to charge to 99% once and it showed 508km range at that percentage, which I thought it was good in terms of battery health.

Recently decided to give Tessie a go, but after the first 5 kWh added, it shows me a battery degradation of around 15%. Isn’t that a bit steep for the age and mileage of the car? What do you think? How far off can Tessie be?