Measuring real battery health on real used EVs.
He bought the car because three separate sources told him the battery was at 100%. The dealer said it out loud. The manufacturer’s own service center plugged in a scanner and got 100%. Owner forums were full of people reporting the same figure on the same model. Four months later I sat in his passenger … Read more
In the middle of July I walked into a used car complex in Seoul with eight printed battery reports under my arm. By the time I left I had talked to ten dealers, handed out all eight, and sold exactly zero. I thought I knew why. I’m a third-year engineering student who at that point … Read more
On the first of May I walked out of my university research lab for the last time. The plan I was walking away from was a doctorate — about six more years of it. The plan I was walking toward was nothing at all. I had no idea what I wanted to build. I just … Read more
I walked out of my university research lab on May 1st with no idea what I was going to build. Eleven weeks later I was sitting in a rented Kia Niro EV with about 127,000 miles on it, plugged into the OBD port, looking at two numbers that didn’t agree. Up to that point, essentially … Read more