Battery groups › 75
BCI battery group
Group 75 battery size
A BCI group 75 battery is at most 230 mm long, 180 mm wide and 186 mm tall (9.06 × 7.09 × 7.32 in), according to the Battery Council International group chart.
| Maximum size | 230 × 180 × 186 mm |
|---|---|
| In inches | 9.06 × 7.09 × 7.32 |
| Terminal types | S |
| Polarity | Standard layout for this group |
| Cold cranking amps (OE range) | 425–690 A |
Cars whose manuals point to group 75
None of the owner's manuals this site has read so far print group 75. 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 75
To take a group 75, the tray needs at least 230 mm (9.06 in) of length and 180 mm (7.09 in) of width inside the hold-down, and 186 mm (7.32 in) of height below the hood or any bracket, with room left for the cable ends. These are BCI maximums: a real group 75 battery can be a few millimetres smaller, never larger. Original-equipment batteries in this group were rated from 425 to 690 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 75 |
|---|---|---|
| 67R | 231 × 175 × 176 | +1 mm length, -5 mm width, -10 mm height |
| 47 | 242 × 175 × 190 | +12 mm length, -5 mm width, +4 mm height |
| 70 | 208 × 180 × 186 | -22 mm length, 0 mm width, 0 mm height |
| 85 | 230 × 173 × 203 | 0 mm length, -7 mm width, +17 mm height |
| 86 | 230 × 173 × 203 | 0 mm length, -7 mm width, +17 mm height |
Positive numbers mean the other group is bigger than group 75. 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 75
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 7. Checked 2026-10-20.