The Smart EV battery warranty
Smart battery cover is typically 8 years / 62,000 miles (100,000 km) to around 70% capacity on the electric ForTwo and ForFour (do not confuse this with the newer Geely-built Smart #1 and #3, which have different terms). The warranty usually transfers with the car, so what matters on a used one is how much is left and whether the battery is still comfortably above the capacity threshold. Read more in our guide to how EV battery warranties work.
How Smart EV batteries age
The electric Smart ForTwo and ForFour use a tiny but liquid-cooled pack that has proved mechanically robust. The bigger real-world risk is the 12V system, which can go flat if the car is left standing, and the key limitation is that no electric Smart has DC rapid charging at all, it is a pure city car.
Whatever the make's reputation, individual cars vary with charging habits, climate and mileage, which is why we always frame battery health as an estimate for the specific vehicle. Our guide to what's normal for EV battery degradation covers the general picture.
Smart model guides
Don't see the model you're looking at? Any EV's battery health can be checked by registration.
What the Used EV Check shows for a Smart
Enter the registration and the Used EV Check returns, for that specific car: its expected real-world range now versus when new, an estimated degradation figure, a battery-health grade where a manufacturer test record exists, and the battery warranty remaining in miles and months, plus the full MOT and mileage history.
Range and battery-health figures are estimates modelled from real-world data and are shown for the specific vehicle in the Used EV Check. Range data is powered by ClearWatt. A battery-health grade is shown where a manufacturer test record exists, it is a comparative grade, not a measured state-of-health percentage.
Check a used Smart EV before you buy
Enter a registration to see the car's estimated battery health, real-world range now vs when new and remaining battery warranty, an instant report.