Hyundai i20 Battery — Size, Type & Replacement (2020–2025)

Battery Specifications

~60Ah
Capacity
~640
CCA (Cold Cranking Amps)
EFB
Battery Type
Parameter Specification
Battery Group 027-class
Type EFB
Capacity ~60Ah
Cold Cranking Amps ~640 CCA
Dimensions 242 x 175 x 190 mm
Terminal Type Top post
Start-Stop Compatible Yes

EFB for ISG (idle stop & go) system

Start-stop warning: Never fit a standard lead-acid battery to a start-stop vehicle. The Hyundai i20 requires a EFB battery minimum. Fitting the wrong type will cause premature failure and may trigger warning lights.

Recommended Batteries for Hyundai i20

Bosch S5 EFB 027

~60Ah ~640CCA | EFB | 4yr warranty
From ~£75

Check Price on Amazon

Varta EFB Start-Stop 027

~60Ah | EFB | OE supplier to Hyundai
From ~£70

Check Price on Amazon

Yuasa YBX7027 (EFB 027)

~60Ah | EFB | Made in UK
From ~£65

Check Price on Amazon

Frequently Asked Questions

What battery does a Hyundai i20 need?

The Hyundai i20 (Mk3) needs a Group 027-class EFB battery (around 60Ah and ~640 CCA) for its stop-start (ISG) system.

Does the Hyundai i20 need an AGM or EFB battery?

Yes — EFB is required because the Hyundai i20 has start-stop technology. EFB for ISG (idle stop & go) system

How long does a Hyundai i20 battery last?

Typically 4–6 years depending on driving patterns. Short urban journeys and cold winters reduce battery life. Start-stop systems are harder on batteries, so quality EFB batteries are essential.

Can I replace the Hyundai i20 battery myself?

Yes for most models — it’s usually located in the engine bay. However, start-stop vehicles may need the battery management system reset with a diagnostic tool after fitting.

How we check fitment for this guide

We cross-reference fitment figures against manufacturer specifications and OE-supplier catalogue data where available, and matched to the standard codes that actually govern fit — battery type/group sizes, wiper lengths and fitting types, bulb fitment codes, tyre size markings, and oil specifications. We work by make, model, year, engine, and build date, because a single model can take different parts across its life. Where the right part depends on your exact vehicle, we tell you to confirm by registration or VIN. More on our method →

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