2021 UK Kona: compare both battery versions
Hyundai’s March 2021 UK sheet gives the pack ratings and estimated charging times below. It lists a 10.5 kW on-board charger. The capacities are not explicitly labelled net or gross; keep them separate from a verified usable-capacity measurement.
| Published battery rating | AC: 7.2 kW single phase | DC: 100 kW-rated public charger |
|---|---|---|
| 39.2 kWh | 6 hours, 10–100% | 47 minutes, 10–80% |
| 64 kWh | 9 hours 15 minutes, 10–100% | 47 minutes, 10–80% |
Independent range evidence for the smaller battery
Green NCAP’s 2020 assessment of the 39.2 kWh Kona reports 202 km average range and 147 km in its worst-case test. Its −7°C test required 29.8 kWh/100 km. This is a different, earlier test vehicle from the 2021 UK specification above; it is not evidence for the 64 kWh version.
If your regular winter route is 150 km, that 147 km test result is a reason to investigate charging access and obtain evidence from the actual car. Choosing the larger battery solely from a badge is not enough: compare its condition, your arrival reserve and a realistic route.
Battery recall and replacement paperwork matter
US recall 21V127 / Hyundai campaign 200 covers certain 2019–2020 Kona Electrics. The report describes a battery-cell defect that can cause an internal short circuit and fire, with battery-assembly replacement as the remedy programme. It is not a statement that every Kona or the 2021 UK version is affected.
Ask Hyundai to check the VIN in the original market and provide the completed-campaign record. If the pack was replaced, retain the invoice and installed-pack identification alongside the battery report. Follow current manufacturer restrictions for any outstanding campaign before charging or driving; this historical example is not a complete recall search.
Sources for the additional guidance
Reviewed . References are scoped to the statements above; viewing questions are EVVerity editorial guidance.
Battery options & usable capacity
The cited 2021 UK specification lists 39.2 and 64 kWh battery capacities. That document does not explicitly label these entries as usable or gross, so this dataset does not automatically treat them as usable-capacity inputs.
Charging capability
The March 2021 UK sheet specifies a 10.5 kW on-board AC charger and separately estimates charging on 7.2 kW single-phase and 10.5 kW three-phase supplies. Its 100 kW public-charger scenario is not a stated vehicle DC peak.
| Reference | AC limit | DC peak |
|---|---|---|
| 2021 UK — verify usable capacity (39.2 / 64 kWh listed) | 10.5 kW | Not verified for this reference |
A 100 kW charger row is not a 100 kW vehicle rating
Hyundai’s March 2021 UK sheet lists a 10.5 kW on-board charger. It also gives estimated times at public chargers rated 50 and 100 kW. Those row labels describe the charging equipment used for the estimates; they do not establish that this Kona accepts 100 kW. The calculator therefore retains an unknown DC peak.
The sheet’s home-charging comparison uses different electrical supplies. Before choosing a wallbox, establish your available supply with an installer and check the specification fitted to the car. Do not use the three-phase time to promise a result on a single-phase installation.
| Supply in the specification | Published estimated time |
|---|---|
| 7.2 kW single-phase wallbox | 9 hours 15 minutes |
| 10.5 kW three-phase wallbox | 6 hours 50 minutes |
Two details to verify in the original paperwork
The same UK specification lists the heat pump as an option and an eight-year / 100,000-mile high-voltage battery warranty. Ask for the build specification to confirm the heat pump, then obtain the applicable warranty terms and original start date. An equipment list cannot confirm remaining coverage.
Keep those documents beside the battery-repair history. Record whether a replacement changed the pack specification, and ask a qualified service provider to explain any mismatch. A seller’s battery-size label alone does not establish the original usable energy or the condition of the installed pack.
Sources for the additional guidance
Reviewed . References are scoped to the statements above; viewing questions are EVVerity editorial guidance.
Plan a journey with this battery reference
This guide has no verified original usable-capacity preset. Use a matching documented value, or label your own estimate clearly, before calculating range.
Calculate a Hyundai Kona Electric journey · Check tax rules for your country
Battery warranty
The March 2021 UK sheet lists a high-voltage battery warranty of eight years / 100,000 miles. Check the original start date, complete terms and replacement-pack paperwork; the sheet does not establish remaining cover or a capacity-retention threshold.
Things worth checking before purchase
- Match the advertised battery size against the vehicle documentation.
- Confirm whether the fitted AC charger and your home supply support the expected rate.
- Request written confirmation of outstanding campaigns and any completed battery work.
- Use your own driving sample rather than the brochure’s test-cycle consumption for battery estimation.
A Kona Electric viewing: distinguish the reference version
Match the generation, market and battery version in the advert to the vehicle documents before selecting a calculator preset. Treat a similarly named model or a different model year as a reason to check the source again, not as permission to copy its specification.
Ask for dated service and battery repair records and confirmation of any outstanding manufacturer campaigns for the exact car. EVVerity does not check a VIN against recall or repair systems. If a pack has been changed, request the replacement details and applicable coverage in writing.
Record the fitted AC charging equipment and confirm its compatibility with your home supply. Keep an observed DC charging session separate from an advertised maximum; temperature, starting charge and the session stage belong in your notes.
Turn the evidence into a useful estimate
Use a documented usable capacity and consumption from conditions matching your trip. Keep original specifications separate from the seller’s current battery-health evidence.
EVVerity estimates are informational and are not a substitute for a professional battery diagnostic or pre-purchase vehicle inspection.
Manufacturer sources & scope
- Hyundai — Kona Electric UK technical specification
2021-03 · checked 2026-10-04
Source verification means the cited statement was reviewed. It does not extend a historical specification to other years or markets. Missing values are intentionally not inferred.
Prepare for the viewing
Research another used EV
If you are considering more than one model, use its own guide to check the battery reference, charging equipment and seller evidence. Specifications and warranty terms must be verified separately for each car.