Battery groups › 24
BCI battery group
Group 24 battery size
A BCI group 24 battery is at most 260 mm long, 173 mm wide and 225 mm tall (10.24 × 6.81 × 8.86 in), according to the Battery Council International group chart.
| Maximum size | 260 × 173 × 225 mm |
|---|---|
| In inches | 10.24 × 6.81 × 8.86 |
| Terminal types | A and A2 |
| Polarity | Standard layout for this group |
| Cold cranking amps (OE range) | 200–1000 A |
| JIS equivalents | 48D26R, 55D26R, 65D26R, 75D26R, 80D26R and 110D26R (BCI best fit) |
Cars whose manuals point to group 24
None of the owner's manuals this site has read so far print group 24. Most Japanese and Korean makers print a case size or capacity instead of a BCI group, so the battery label on the car is the better guide.
Measuring for a group 24
To take a group 24, the tray needs at least 260 mm (10.24 in) of length and 173 mm (6.81 in) of width inside the hold-down, and 225 mm (8.86 in) of height below the hood or any bracket, with room left for the cable ends. These are BCI maximums: a real group 24 battery can be a few millimetres smaller, never larger. Original-equipment batteries in this group were rated from 200 to 1000 cold cranking amps, so the right rating depends on the car; match or exceed the rating on the battery you are replacing.
Nearby sizes
| Group | L × W × H (mm) | Difference from 24 |
|---|---|---|
| 152R | 260 × 173 × 225 | 0 mm length, 0 mm width, 0 mm height |
| 24R | 260 × 173 × 229 | 0 mm length, 0 mm width, +4 mm height |
| 24H | 260 × 173 × 238 | 0 mm length, 0 mm width, +13 mm height |
| 63 | 258 × 162 × 225 | -2 mm length, -11 mm width, 0 mm height |
| 124R | 262 × 177 × 218 | +2 mm length, +4 mm width, -7 mm height |
Positive numbers mean the other group is bigger than group 24. A bigger case only fits if your tray and hold-down have that much spare room; measure inside the hold-down frame, not the old battery.
Fitting a group 24
The group sets the case size, terminal position and hold-down. A battery from another group can only replace it when the length, width and height all fit the tray and the terminals land on the same sides. No other passenger-car group in the BCI chart has exactly the same case size and polarity. Use the tray fit checker to list every group that fits a measured space.
Source: Battery Council International, BCI Group Sizes (Oct 2023 PDF), page 6. Checked 2026-10-20.