Quick answer
Smart EQ ForTwo at a glance
| Body type | City car |
|---|---|
| Years | 2017-2024 |
| Battery (usable) | Usable ~17 kWh (17.6 kWh total), one battery (ForTwo and ForFour) |
| WLTP range (new) | Around 68-84 miles depending on body and year |
| Real-world range | Roughly 60-80 miles in real use |
| Battery warranty | 8 years / 62,000 miles (100,000 km) to around 70% capacity, many cars are now near expiry |
| Battery cooling | Active liquid cooling |
Figures are typical across the model's life and vary by year and trim, treat them as a guide, not a guarantee for a specific car.
How the EQ ForTwo's battery ages
The tiny pack is liquid-cooled and mechanically robust, and there is little sign of a degradation problem, though hard data is thin given the low volumes. The bigger real-world risk is the 12V system: with no alternator, a Smart left parked for a week or two can go flat, and a very low 12V can knock on into high-voltage faults.
Battery cooling is a big part of the story: this car uses active liquid cooling. Cars that have spent their life on rapid chargers, been left sitting at 100%, or lived somewhere hot tend to lose capacity faster, which is why two identical EQ ForTwos on the same mileage can be worth different amounts. Read more in our guide to what's normal for EV battery degradation.
What to watch out for on a used Smart EQ ForTwo
- No electric Smart has DC rapid charging at all: it is AC only, up to 22 kW at best, so it is strictly a city car
- Plan around roughly 70 real miles, less in winter, this is an urban runabout not an all-rounder
- A flat 12V battery (there is no alternator) is a common no-start cause, avoid cars left standing for long periods
- Don’t use the current Smart website warranty (that covers the newer Geely-built #1 and #3), the electric ForTwo’s battery cover is 8 years / 62,000 miles
What the Used EV Check shows for a Smart EQ ForTwo
Enter the registration and the Used EV Check returns, for that specific EQ ForTwo: 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. It also pulls the full MOT and mileage history so you can spot clocking or a car that has covered far more motorway miles than the advert suggests.
It's the fastest way to tell a good Smart EQ ForTwo from a tired one before you drive out to view it. For the wider process, see our complete used-EV buyer's guide and how to check an EV's battery health.
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 EQ ForTwo before you buy
Enter a registration to see this EQ ForTwo's battery health, real-world range now vs when new and remaining battery warranty, an instant report.