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BCI battery group

Group 94R battery size

A BCI group 94R battery is at most 315 mm long, 175 mm wide and 190 mm tall (12.4 × 6.89 × 7.48 in), according to the Battery Council International group chart.

Group 94R315 × 175 × 190 mm
Group 94R315 × 175 mmGroup 27306 × 173 mmGroup 27F318 × 173 mm
BCI group 94R maximum footprint (length × width) to scale, next to group 27 and group 27F. Source: BCI group size chart.
Maximum size315 × 175 × 190 mm
In inches12.4 × 6.89 × 7.48
Terminal typesA1 and A2
PolarityReversed (R): positive terminal on the opposite side from the base group
Cold cranking amps (OE range)440–900 A
DIN / EN equivalentH7 / LN4 (BCI best fit)

Cars whose manuals point to group 94R

Measuring for a group 94R

To take a group 94R, the tray needs at least 315 mm (12.4 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 94R battery can be a few millimetres smaller, never larger. Original-equipment batteries in this group were rated from 440 to 900 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 94R
79307 × 179 × 188-8 mm length, +4 mm width, -2 mm height
92315 × 175 × 1750 mm length, 0 mm width, -15 mm height
65306 × 192 × 192-9 mm length, +17 mm width, +2 mm height
66306 × 192 × 194-9 mm length, +17 mm width, +4 mm height
98R283 × 175 × 190-32 mm length, 0 mm width, 0 mm height

Positive numbers mean the other group is bigger than group 94R. 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 94R

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.