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BCI battery group

Group 48 battery size

A BCI group 48 battery is at most 278 mm long, 175 mm wide and 190 mm tall (10.94 × 6.89 × 7.48 in), according to the Battery Council International group chart.

Group 48278 × 175 × 190 mm
Group 48278 × 175 mmGroup 24260 × 173 mmGroup 24F273 × 173 mm
BCI group 48 maximum footprint (length × width) to scale, next to group 24 and group 24F. Source: BCI group size chart.
Maximum size278 × 175 × 190 mm
In inches10.94 × 6.89 × 7.48
Terminal typesA, A1 and A2
PolarityStandard layout for this group
Cold cranking amps (OE range)315–850 A
DIN / EN equivalentH6 / LN3 (BCI best fit)

Cars whose manuals point to group 48

Measuring for a group 48

To take a group 48, the tray needs at least 278 mm (10.94 in) of length and 175 mm (6.89 in) of width inside the hold-down, and 190 mm (7.48 in) of height below the hood or any bracket, with room left for the cable ends. These are BCI maximums: a real group 48 battery can be a few millimetres smaller, never larger. Original-equipment batteries in this group were rated from 315 to 850 cold cranking amps, so the right rating depends on the car; match or exceed the rating on the battery you are replacing.

Nearby sizes

GroupL × W × H (mm)Difference from 48
148278 × 175 × 1900 mm length, 0 mm width, 0 mm height
98R283 × 175 × 190+5 mm length, 0 mm width, 0 mm height
40R278 × 175 × 1750 mm length, 0 mm width, -15 mm height
91278 × 175 × 1750 mm length, 0 mm width, -15 mm height
100260 × 179 × 188-18 mm length, +4 mm width, -2 mm height

Positive numbers mean the other group is bigger than group 48. 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 48

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. Groups with exactly the same case size and polarity: 148. 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.