Continuing after year 2, here are my results from 3 years of almost exclusively using superchargers to charge my Model S.

A snippet of my battery degradation after 3 years, data from TeslaFi.

Battery Degradation Report

Per usual, to avoid burying the lede, we will start with the juicy data. Here’s a graph from TeslaFi showing the estimated battery range at 100%. This includes all charges over the last year with an ending point of 60% or greater.

When new, the car should report 270 miles of available range. When I first purchased the car, my starting range was around 252.5 miles at full, with 92,700 miles on the odometer. In the three years since, the range has followed a pretty steady trend downward, as is to be expected. It currently sits at 232.99 miles when full, representing a roughly 37-mile range loss over the ~128k miles it has traveled.

The range has decreased roughly ~19.5 miles since I got it, while I have put 50,800 miles on it. This amounts to a loss of 1 mile of range about every 2600 miles driven.

Since last year, I have driven the car 15,510 miles, and the battery has lost 6.9 miles of range. This matches pretty well with what I saw last year, if a slight improvement. We started seeing much higher degradation around the 120k mark.

Charging Habits/Data

I have now supercharged 647 times at 143 different supercharging locations totaling 21,490.32 kWh taking a total of 26 days and 22 hours with an average charge time of 40 mins.

Road Trips

Everywhere I have charged in 3 years of ownership.

I visited 36 new superchargers in 2025.

Maintenance

I had no maintenance this year, the car was free to drive other than insurance.