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Used MINI Cooper SE battery health & degradation data
Last updated: · 8 sourced data points
A small-battery city EV, so each kilometre uses a bigger share of the pack. In AVILOO's test data its median SoH falls faster with mileage than the larger EVs here (about 90% at 100,000 km). Sources: AVILOO GmbH.
Battery options: Cooper SE 3-door hatch (F56, 2020–2024): 32.6 kWh gross / 28.9 kWh usable; the 2024-on MINI Cooper E/SE (J01) is a different car.
Estimate the expected battery health of a Cooper SE by mileage and age → (uses the data on this page; not a test)
Battery health by mileage (independent tests)
| Mileage | Median SoH | Range covering 99% of tested cars |
|---|---|---|
| 50,000 km (≈31,069 mi) | 94.1% | 87.9% – 97.4% |
| 100,000 km (≈62,137 mi) | 90.1% | 82.2% – 95.5% |
| 150,000 km (≈93,206 mi) | 87.1% | 77.5% – 93.9% |
Source: AVILOO GmbH, published 2026-09-03; n=8,554 tests of this model (all battery sizes grouped, global). Bar scale 75–100%.
Battery health vs mileage – all sources
Text summary of the chart
- AVILOO test: 3 points (from datasets of n=8,554 tests in total; dataset medians, lines show the 99% band), 87.1% to 94.1% between 50,000 and 150,000 km
- Owner-reported or listing (n=1): 5 points, 92.0% to 98.0% between 14,500 and 35,300 km
All data points
| Variant | Mileage | SoH | Type | Sample | Measured by | Source (date) |
|---|---|---|---|---|---|---|
| All battery variants grouped | 50,000 km ≈ 31,069 mi |
94.1% 99% band 87.9%–97.4% |
Median | n=8,554 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| All battery variants grouped | 100,000 km ≈ 62,137 mi |
90.1% 99% band 82.2%–95.5% |
Median | n=8,554 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| All battery variants grouped | 150,000 km ≈ 93,206 mi |
87.1% 99% band 77.5%–93.9% |
Median | n=8,554 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| Cooper SE (F56) 28.9 kWh usable (reg. 10/2020) | 14,500 km ≈ 9,010 mi |
98.0% | Single car (owner-reported) | n=1 | OBD app (Electrified), owner-reported | MINI F56 Forum – mini-f56-forum.de (posts dated 2024-10-29 to 2024-11-11) Owner-reported, n=1. 2024-11-11, Electrified app; 99% AC charging. |
| Cooper SE (F56) 28.9 kWh usable | 32,000 km ≈ 19,884 mi |
97.7% | Single car (owner-reported) | n=1 | Battery certificate (owner-reported) | MINI F56 Forum – mini-f56-forum.de (posts dated 2024-10-29 to 2024-11-11) Owner-reported, n=1. Battery certificate when bought used, July 2024 (posted 2024-10-29; certificate issuer not named). |
| Cooper SE (F56) 28.9 kWh usable | 35,300 km ≈ 21,934 mi |
94.0% | Single car (owner-reported) | n=1 | OBD app (mi3), owner-reported | MINI F56 Forum – mini-f56-forum.de (posts dated 2024-10-29 to 2024-11-11) Owner-reported, n=1. 2024-10-31, mi3 app; mostly charged to 100% at home. |
| Cooper SE (F56) 28.9 kWh usable (car for sale) | 18,000 km ≈ 11,185 mi |
92.0% | Single car | n=1 | DEKRA report (quoted by a forum member) | MINI F56 Forum – mini-f56-forum.de (posts dated 2026-03-20 to 2026-08-08) Owner-reported, n=1. 2026-08-08: prospective buyer quotes a DEKRA report on a car with about 18,000 km; another member notes winter readings tend to be lower. |
| Cooper SE (F56) 28.9 kWh usable | 33,100 km ≈ 20,567 mi |
97.0% | Single car (owner-reported) | n=1 | Owner-reported SoH (car/app/OBD reading) | MINI F56 Forum – mini-f56-forum.de (posts dated 2026-03-20 to 2026-08-08) Owner-reported, n=1. 2026-03-20 (method not stated). |
Data gaps: Owner reports are mostly under 40,000 km; no published non-AVILOO data for high-mileage cars yet.
What to check when buying a used Cooper SE
- Owners read SoH with OBD apps such as mi3 or Electrified; readings move with temperature, so compare like with like or use an independent test. (MINI F56 Forum – mini-f56-forum.de, [2])
- Cars first registered in 2020 reach the end of the 8-year battery warranty from 2028; check the registration date. (MINI UK)
- Compare any test result with the ranges above and with the ADAC rule of thumb: at least 92% at 50,000 km, 88% at 100,000 km, 84% at 150,000 km, 80% at 200,000 km. (ADAC)
Battery warranty (UK)
MINI UK: high-voltage battery covered for 8 years or 100,000 miles against defects and excessive capacity loss; the warranty handbook sets the threshold at below 70% as measured by a MINI repairer. Source: MINI UK, checked 2026-10-20. Always confirm the terms for the specific car with the manufacturer.
Check how much battery warranty a Cooper SE has left → (by registration date and mileage)
Sources used on this page
4 sources · 8 data points: 5 from non-AVILOO methods, 3 measured with AVILOO tests.
- Large test datasets (1 source, 3 data points): AVILOO GmbH
- Owner-reported (2 sources, 5 data points): MINI F56 Forum – mini-f56-forum.de, [2]
- Manufacturer (1 source): MINI UK
Owner-reported and listing values are single cars (n=1) read from the car, an app or an OBD tool – useful examples, not averages. Range-retention figures (Recurrent) measure range, not capacity. Full details: methodology & all sources.
Get this specific car tested
Ad disclosure: we are not currently paid by these providers. If that changes, the specific links will be marked "(paid link)" and this box labelled "Ad". How we make money.
Model averages can't tell you about the car in front of you. An independent battery test (typically a short OBD plug-in test, some remote) gives an SoH figure and often a certificate you can use when negotiating.
- AVILOO – Independent OBD-based battery test (FLASH / Premium) with certificate; available via partners in the UK and EU.
- Generational – UK OBD plug-in test with certificate (SoH, range, remaining warranty, cell balance); sold through dealers and independent mobile testers.
- Moba – Postal OBD kit: you run the test yourself and post the box back for a digital battery certificate (Europe – check vehicle support and delivery country).
Prices change – check the provider's site. Provider names are used for identification only.
FAQ
What battery health is normal for a used MINI Cooper SE?
In AVILOO's 2026 report (independent tests, all battery sizes grouped) the median SoH was 94.1% at 50,000 km, 90.1% at 100,000 km and 87.1% at 150,000 km. 99% of tested cars at 100,000 km fell between 82.2% and 95.5%.
What is the MINI Cooper SE battery warranty in the UK?
MINI UK: high-voltage battery covered for 8 years or 100,000 miles against defects and excessive capacity loss; the warranty handbook sets the threshold at below 70% as measured by a MINI repairer.
How can I check the battery of a specific MINI Cooper SE?
Use an independent battery test (OBD-based or remote) and compare the result with the ranges on this page. Model averages cannot tell you the condition of one specific car.
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