Car Tire Size / Car battery size / Group 49
Group 49 battery size
A group 49 car battery is at most 13.90 inches long, 6.89 wide and 7.48 tall (353 x 175 x 190 mm), with top posts. In Europe and on many imports the same box is called H8.

- Length
- 13.90 in (353 mm)
- Width
- 6.89 in (175 mm)
- Height
- 7.48 in (190 mm)
- Terminals
- top posts
- Also sold as
- H8
Close in size
No other group in the BCI table comes within 10 mm (0.4 in) of group 49 on all three sides: look for group 49 itself.
Before you buy a group 49 battery
- Read the group number on the label of the battery in your car, or in the owner's manual: it should say 49.
- A group with an "R" after the number has its terminals reversed: do not swap one for the other without checking where your cables reach.
- Choose cold cranking amps (CCA) at least as high as the original, especially for cold winters.
- Measure your battery tray and the room above it, then compare with the size printed for the exact battery you pick, not only with the group number.
- Group 49 has top posts: the new battery must match, and the hold-down must fit the box.
- Most stores take the old battery back for recycling, often against a core charge.
Good to know about group 49
- Group 49 is the same size as H8 in European (DIN) sizing, also called L5.1,2,3,4
- H8 / group 49 is one of the European DIN sizes used in many European cars.2,5
- Group 49 is made as an AGM battery, and makers sell group 49 batteries for vehicles with start-stop.1,6,7
- NAPA, Interstate and Continental list a group 49 at 13 15/16 in and Odyssey at 13.9 in (353 mm), all at the BCI figure of 353 mm.3,6,8,9,10
How we checked this page
Checked on October 16, 2026. We kept a fact only when two independent sources agree, and each one is numbered to its sources below. We never write a price: the listings come straight from eBay and show what sellers ask. This page was written with an AI assistant and checked against the sources below.
Group 49 batteries listed on eBay
Sources
- Automotive battery specifications (2740), East Penn Manufacturing (Deka)
- Car battery fitment sizing, Antigravity Batteries
- Group 49 (L5/H8) AGM battery, Continental Battery
- ODYSSEY Performance automotive batteries, EnerSys (Odyssey)
- What do battery groups mean?, Optima Batteries (Clarios)
- MTX-49/H8, Interstate Batteries
- Group 49 (L5/H8) EFB battery, Continental Battery
- BCI group numbers, dimensional specifications and ratings, Battery Council International
- NAPA The Legend Premium AGM battery BCI No. 49, NAPA Auto Parts
- ODYSSEY battery specifications (ODP-AGM24), EnerSys (Odyssey)
Dimensions are the BCI maximums for the case, terminals excluded. Sources: Battery Council International, "BCI Group Numbers, Dimensional Specifications and Ratings" (batterycouncil.org), read October 15, 2026; East Penn Manufacturing (Deka), automotive battery specification sheet 2740 (eastpennmanufacturing.com), read October 16, 2026; Antigravity Batteries, "Car battery fitment sizing" (antigravitybatteries.com), read October 16, 2026; Jalopnik, Viraaj Bhatnagar, "What the BCI group size number on your car battery means" (jalopnik.com), September 6, 2026; Battery Mart, "Group 51R batteries" (batterymart.com), read October 16, 2026.
