2020 Acura ILX Battery Size

The 2020 Acura ILX uses a BCI Group 51R battery, rated about 410-500 cold cranking amps (Flooded).

BCI Group Size51RThe case-size code that sets the physical fit and terminal layout.Verified fit
Battery type (OEM)
Flooded
Cold cranking amps (CCA)
410-500
Terminal position
Reversed-terminal layout (R)
Dimensions (L×W×H)
238×129×223 mm
Location
Under the hood (engine bay)
Verified fitLast checked
It comes with a standard flooded battery. You can usually step up to an AGM in the same Group 51R for longer life, but it isn't required. The 410-500 CCA rating suits this vehicle's modest starting demands; match it or go slightly above. Group 51R defines the case size and terminal layout (reversed-terminal layout (r)), so any reputable Group 51R battery will fit the tray and connect correctly.

Where to buy a Group 51R 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 51R batteries on Amazon410+ CCA, Flooded

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Frequently asked

What size battery does a 2020 Acura ILX take?

The 2020 Acura ILX uses a BCI Group 51R battery, rated around 410-500 cold cranking amps.

Does the 2020 Acura ILX need an AGM battery?

No - it comes with a flooded battery from the factory. You can usually upgrade to AGM in the same Group 51R size, but it isn't required.

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

Aim for roughly 410-500 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). Reversed-terminal layout (R).

Also check the wiper sizes for your 2020 Acura ILX