Have had my Model 3 since it first came out. Only about 13k miles. When I charge to 100% it says the max is 298 miles (down from 310), and on a daily charge (90%) it is only giving me 260 (down from 280).
A Tesla tech was over to fix something and when asked he mentioned that the battery was fine, but the cars display/computer was giving me a projected range based on how i drive (yes, i drive fast).
Anyone know if his recommendation is true?