Battery groups › 35

BCI battery group

Group 35 battery size

A BCI group 35 battery is at most 230 mm long, 175 mm wide and 225 mm tall (9.06 × 6.89 × 8.86 in), according to the Battery Council International group chart.

Group 35230 × 175 × 225 mm
Group 35230 × 175 mmGroup 21208 × 173 mmGroup 21R208 × 173 mm
BCI group 35 maximum footprint (length × width) to scale, next to group 21 and group 21R. Source: BCI group size chart.
Maximum size230 × 175 × 225 mm
In inches9.06 × 6.89 × 8.86
Terminal typesA and A2
PolarityStandard layout for this group
Cold cranking amps (OE range)300–640 A
JIS equivalents55D23L, 65D23L, 70D23L, 75D23L and 80D23L (BCI best fit)

Cars whose manuals point to group 35

None of the owner's manuals this site has read so far print group 35. 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 35

To take a group 35, the tray needs at least 230 mm (9.06 in) of length and 175 mm (6.89 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 35 battery can be a few millimetres smaller, never larger. Original-equipment batteries in this group were rated from 300 to 640 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 35
25230 × 175 × 2250 mm length, 0 mm width, 0 mm height
73230 × 179 × 2160 mm length, +4 mm width, -9 mm height
22HF241 × 175 × 229+11 mm length, 0 mm width, +4 mm height
62225 × 162 × 225-5 mm length, -13 mm width, 0 mm height
72230 × 179 × 2100 mm length, +4 mm width, -15 mm height

Positive numbers mean the other group is bigger than group 35. 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 35

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: 25. 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.