SCAN MY TESLA MODEL 3 PERFORMANCE BATTERY DEGRADATION AFTER 3.5 YEARS

EV Channels Review

This video provides an in-depth look at using the Scan My Tesla app and an OBDLink MX+ adapter to assess battery degradation on a 2019 Tesla Model 3 Performance. The reviewer, Tom, details the necessary hardware, including the OBD adapter and a specific harness, noting the associated costs for Australian buyers. A key takeaway is the importance of battery calibration (BMS) for accurate readings, which involved discharging the battery to below 10% and then charging to 100% and leaving it overnight. After calibration, the nominal battery capacity improved, leading to a recalculated degradation of approximately 10-11%, which the reviewer deems acceptable for a four-year-old performance model. The video highlights the app's ability to display various real-time data points, such as cell voltages, temperatures, and charging history, offering a more granular understanding of the battery's health than standard in-car metrics. The reviewer plans to track degradation further and compare it with other Tesla models, including an older Model S and an upcoming Model Y with LFP batteries.