2004 Honda Civic Battery Size
The 2004 Honda Civic uses a BCI Group 51R battery (Group 51 also fits), rated about 410-500 cold cranking amps (Flooded).
- 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)
6th/7th gen. Always confirm against your owner's manual or current battery label.
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, FloodedAs an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently asked
What size battery does a 2004 Honda Civic take?
The 2004 Honda Civic uses a BCI Group 51R battery (Group 51 also fits), rated around 410-500 cold cranking amps.
Does the 2004 Honda Civic 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).