SoH Calculator

Quickly assess the battery State of Health (SoH) of any EV. Perfect tool for used EV buyers—this app provides instant insights with no long tests, OBD dongles, or hassle required!

A large number of preset cars are included (currently all Model 3 types ever manufactured), while you can add custom vehicles too.

The calculated SoH and battery degradation values provided by this app serve as a strong indication based on actual EPA ranges reported by the vehicle’s onboard computer. However, they are not intended as precise measurements.

This app is independently developed and is in no way affiliated with, endorsed by, or associated with Tesla, Inc.