GarageDex

2021 Mini Cooper Battery Size

The 2021 Mini Cooper uses a BCI Group 47 battery (Group 48 also fits), rated about 600-680 cold cranking amps (AGM).

BCI Group Size47also fits Group 48The case-size code that sets the physical fit and terminal layout.Verified fit
Battery type (OEM)
AGM
Cold cranking amps (CCA)
600-680
Terminal position
Standard-terminal layout
Dimensions (L×W×H)
246×175×190 mm
Location
Under the hood (engine bay)

Base Hardtop = H5 (47) AGM; Cooper S/JCW may use H6 (48) - confirm by VIN. Always confirm against your owner's manual or current battery label.

Verified fitLast checked
Sources: Interstate Batteries
This vehicle ships with an AGM battery from the factory, which is common on models with engine stop-start. Replace it with an AGM of the same group, not a standard flooded battery, or you risk shorter life and dashboard warnings. A 600-680 CCA rating is typical for this class. Matching or slightly exceeding the OEM figure is fine; going below it risks hard starts in winter. Group 47 defines the case size and terminal layout (standard-terminal layout), so any reputable Group 47 battery will fit the tray and connect correctly. Some trims or engines use Group 48 instead, so always confirm against the label on your current battery.

Where to buy a Group 47 battery

A car battery is heavy and expensive to ship, so buying in person (Walmart, Costco, or a local auto-parts store) often beats online once you count free installation and the core-charge refund on your old battery. To compare prices and reviews online:

Search Group 47 batteries on Amazon600+ CCA, AGM

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

Frequently asked

What size battery does a 2021 Mini Cooper take?

The 2021 Mini Cooper uses a BCI Group 47 battery (Group 48 also fits), rated around 600-680 cold cranking amps.

Does the 2021 Mini Cooper need an AGM battery?

Yes - this configuration is fitted with an AGM battery from the factory, typically required on start-stop equipped trims.

How many cold cranking amps (CCA) does it need?

Aim for roughly 600-680 CCA. Choosing at or above the OEM rating is fine; going below can cause hard starts in cold weather.

Where is the battery located?

Under the hood (engine bay). Standard-terminal layout.

Other vehicles that use Group 47

See all cars that take a Group 47 battery →
2022 Buick Encore2021 Buick Encore2020 Buick Encore2019 Buick Encore

Also check the wiper sizes for your 2021 Mini Cooper →