BMW EV Battery Health by Model: Used Buyer’s Guides

The BMW EV battery warranty

BMW battery cover is typically 8 years / 100,000 miles to 70% capacity. 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 BMW EV batteries age

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.

BMW model guides

BMW i3

City car / hatchback · 2013-2022 · Around 80-188 miles depending on battery

Battery health & range

BMW i4

Gran Coupé (fastback saloon) · 2022-present · Around 299-380 miles depending on trim

Battery health & range

BMW iX3

Mid-size SUV · 2021-2024 (G08) · Around 280 miles

Battery health & range

BMW iX

Large SUV · 2021-present · Around 257-380 miles depending on battery

Battery health & range

BMW i5

Executive saloon (Touring estate also sold) · 2023-present · Around 314-394 miles depending on version

Battery health & range

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 BMW

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.

Range data powered by ClearWatt

Check a used BMW 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.

See the Used EV Check (£9.99) →Try the free EV check

Used BMW EV battery FAQ

How do I check a used BMW EV's battery health?+

You can't see battery state of health on the V5C, the MOT or the advert. Enter the registration into the Used EV Check and it returns the car's estimated real-world range now versus when new, a degradation estimate, a battery-health grade where a manufacturer test record exists, and the remaining battery warranty. It works the same way for any BMW EV, and range data is powered by ClearWatt.

What battery warranty do BMW electric cars have?+

BMW battery cover is typically 8 years / 100,000 miles to 70% capacity. It usually transfers to the next owner, and the Used EV Check shows how much of it is left in miles and months for a specific car.

How long do BMW EV batteries last?+

BMW’s liquid-cooled packs have aged well. On the i3 the practical limit is usually the small original battery rather than lost capacity, though the earliest 60 Ah cars have little range to spare, so a few percent of degradation is felt more keenly than in a big-pack EV. As a rule of thumb, EV batteries lose their first few percent early on and then settle into a slow decline, so a car that still returns close to its original range for its age and mileage is ageing well.