Used Smart #1 battery health & degradation data
Last updated: · 2 sourced data points
The Smart #1 compact SUV comes with either an NMC or an LFP battery. No citable published SoH measurement found yet. Sources: EV Database.
Battery options: 66 kWh (NMC, Pro+/Premium/Brabus) and 49 kWh (LFP, Pure/Pro).
Chemistry: 66 kWh: NMC. 49 kWh: LFP. (EV Database)
Limited data so far – contribute yours
We have 2 sourced data points for the Smart #1, all from individual cars (n=1). Single-car results are anecdotes, not typical values. If you own one, sharing your SoH reading (with mileage and how it was measured) helps every buyer.
All data points
| Variant | Mileage | SoH | Type | Sample | Measured by | Source (date) |
|---|---|---|---|---|---|---|
| #1 Premium 66 kWh (04/2024), one car | 1,800 km ≈ 1,118 mi |
100.0% | Single car (owner-reported) | n=1 | Dealer diagnostic tool SoH, reported by buyer | Forum Automobile Propre (2024-08-21) Owner/buyer-reported, n=1, 2024-08-21. Nearly new car – shows the starting point, not ageing. |
| #1 Premium 66 kWh, one car | 27,500 km ≈ 17,088 mi |
99.5% | Single car (owner-reported) | n=1 | Owner-reported approx. capacity loss (~0.5%) | smart-1-forum.de (2025-11-12) Owner-reported, n=1, 2025-11-12: "about 0.5% loss" after 1.5 years and 27,500 km; value is approximate. |
Data gaps: Only owner-reported figures (n=1) so far, one from a nearly new car. No independent test dataset yet. Please share yours.
What to check when buying a used #1
- Check whether the car has the 49 kWh LFP or 66 kWh NMC pack. (EV Database)
- 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)
How to check the battery on a used #1
- smart says battery warranty SoH must be determined by a battery energy content measurement at a smart Authorised Service Partner. (smart UK Automotive Ltd)
- Ask for an independent battery test. AVILOO lists FLASH-test support for the Smart #1 49 and 66 kWh packs shown above, so a dealer certificate or a mobile tester can give an SoH figure you can compare with the results on this page. (AVILOO GmbH)
Battery warranty (UK)
smart UK (terms version 21 Mar 2025): high-voltage battery 8 years or 125,000 miles, whichever comes first; replacement if SoH falls below 70% of the SoH at delivery, measured by a smart Authorised Service Partner. HV core components 8 years / 100,000 miles; vehicle 3 years, unlimited mileage. Source: smart UK Automotive Ltd, checked 2026-10-20. Always confirm the terms for the specific car with the manufacturer.
Sources used on this page
5 sources · 2 data points: 2 from non-AVILOO methods, 0 measured with AVILOO tests.
- Owner-reported (2 sources, 2 data points): Forum Automobile Propre, smart-1-forum.de
- Manufacturer (1 source): smart UK Automotive Ltd
- Other (specs, guides, news, surveys) (2 sources): EV Database, AVILOO GmbH
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 remote battery health assessment and certificate, used by dealers and fleets.
Prices change – check the provider's site. Provider names are used for identification only.
FAQ
What is the Smart #1 battery warranty in the UK?
smart UK (terms version 21 Mar 2025): high-voltage battery 8 years or 125,000 miles, whichever comes first; replacement if SoH falls below 70% of the SoH at delivery, measured by a smart Authorised Service Partner. HV core components 8 years / 100,000 miles; vehicle 3 years, unlimited mileage.
What battery chemistry does the Smart #1 use?
66 kWh: NMC. 49 kWh: LFP.
How can I check the battery of a specific Smart #1?
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.
Part of our Chinese EVs battery health guide (LFP vs NMC, warranties and checks for 13 Chinese-brand and Chinese-built models).
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