Second Hand Hyundai i40 Battery

The Hyundai i40 (2011–2015) typically uses a 70Ah or 80Ah battery in a standard European H6/H7 footprint, but the exact spec can vary depending on the engine and whether the car has a start-stop system fitted. When sourcing a used battery from a breaker, confirm the CCA (cold cranking amps) rating and physical dimensions — length, width, and height — against your existing battery or handbook. Always check the terminal positions (positive left or right) before buying.

The Hyundai i40 had a facelift in 2014, giving the car updated styling, but this did not change the battery tray dimensions or electrical specification in a way that creates a hard fitment barrier. That said, whether a specific used battery from a pre-2014 car will interchange cleanly with a post-2014 car is worth confirming with the breaker against your registration, particularly if your car has a start-stop system that the donor car may not have had. Spec matters more than model year for batteries, so match Ah, CCA, and physical size first.

Trim level — whether Classic, Style, or Premium — does not affect battery fitment on the i40; the battery tray and electrical specification are the same across the range. A used battery pulled from any trim should physically fit, provided the Ah rating, CCA, and physical dimensions match your car's requirements. Bear in mind that a battery from a higher-spec car with more electrical accessories may have a higher Ah rating, which is generally fine to fit but worth noting.

Batteries are spec-driven rather than strictly model-driven, so a battery from another Hyundai — such as an i30 or i20 — could physically fit the i40 if the dimensions, terminal layout, Ah rating, and CCA match. Because different models use different battery trays and may have different electrical demands, you should not assume a direct swap without comparing the full spec. Ask the breaker to confirm the exact measurements and spec against your registration before purchasing.

Diesel engines typically require a higher CCA battery than equivalent petrol engines because diesels need more cranking power, so a petrol-donor battery may be underspec for a diesel i40. The physical size and tray position can be similar across the range, but fitment is really about matching the electrical spec to your engine. Confirm the CCA and Ah rating of any used battery with the breaker against your specific registration to make sure it meets your engine's starting requirements.

Ask the breaker for the battery's physical dimensions (length x width x height), Ah rating, CCA rating, and terminal layout (positive NS or OS), and compare these directly with the label on your existing battery or your handbook specification. Also check the age of the battery — most used batteries from a breaker are worth considering only if they are reasonably recent and have been tested, as battery condition degrades over time. A good breaker should be able to confirm the spec against your registration, so always provide your reg when getting a quote.