The Truth About Tesla Battery Lifespan: An Owner Data Analysis

The largest single chunk of the cost of a Tesla is the battery, which also poses a single point of failure risk for Tesla owners. Buyers are typically not worried about an event-based failure, even though fires could certainly be a concern, but rather about the degradation of the battery over the life of the vehicle. With EV drivetrains expected to last much longer than their fossil fuel–fired counterparts, the life expectancy of the battery becomes a looming maintenance expense waiting to hit and has everyone asking, “How long will it last?”