BCI Group Number Chart
BCI

Group

Number

Voltage Usage Maximum Overall Dimensions Note
Millimeters Inches
L W H L W H
1 6 Auto / LD Commercial 232 181 238 9 1/8 7 1/8 9 3/8
2 6 Auto / LD Commercial 264 181 238 10 3/8 7 1/8 9 3/8
2E 6 Auto / LD Commercial 492 105 232 19 7/16 4 1/8 9 1/8
2N 6 Auto / LD Commercial 254 141 227 10 5 9/16 8 15/16
4D 12 HD Commercial 527 222 250 20 3/4 8 3/4 9 7/8
3EE                
3ET                
4DLT                
6D 12 HD Commercial 527 254 260 20 3/4 10 10 1/4
6TL                
8D 12 HD Commercial 527 283 250 20 3/4 11 1/8 9 7/8
12T                
16TF                
17HF 6 Auto / LD Commercial 187 175 229 7 3/8 6 7/8 9
17TF                
21 12 Auto / LD Commercial 208 173 222 8 3/16 6 13/16 8 3/4
22F 12 Auto / LD Commercial 241 175 211 9 1/2 6 7/8 8 5/16
22HF 12 Auto / LD Commercial 241 175 229 9 1/2 6 7/8 9
22NF 12 Auto / LD Commercial 240 140 227 9 7/16 5 1/2 8 15/16
22R 12 Auto / LD Commercial 229 175 211 9 6 7/8 8 5/16
24 12 Auto / LD Commercial 260 173 225 10 1/4 6 13/16 8 7/8
24F 12 Auto / LD Commercial 273 173 229 10 3/4 6 13/16 9
24H 12 Auto / LD Commercial 260 173 238 10 1/4 6 13/16 9 3/8
24R 12 Auto / LD Commercial 260 173 229 10 1/4 6 13/16 9
24T 12 Auto / LD Commercial 260 173 248 10 1/4 6 13/16 9 3/4
25 12 Auto / LD Commercial 230 175 225 9 1/16 6 7/8 8 7/8
26 12 Auto / LD Commercial 208 173 197 8 3/16 6 13/16 7 3/4
26R 12 Auto / LD Commercial 208 173 197 8 3/16 6 13/16 7 3/4
27 12 Auto / LD Commercial 306 173 225 12 1/16 6 13/16 8 7/8
27F 12 Auto / LD Commercial 318 173 227 12 1/2 6 13/16 8 15/16
27H 12 Auto / LD Commercial 298 173 235 11 3/4 6 13/16 9 1/4
28 12 HD Commercial 261 173 240 10 5/16 6 13/16 9 7/16
29H 12 HD Commercial 334 171 232 13 1/8 6 3/4 9 1/8
29NF 12 Auto / LD Commercial 330 140 227 13 5 1/2 8 15/16
30H 12 HD Commercial 343 173 235 13 1/2 6 13/16 9 1/4
31 12 HD Commercial 330 173 240 13 6 13/16 9 7/16
33 12 Auto / LD Commercial 338 173 238 13 5/16 6 13/16 9 3/8
34 12 Auto / LD Commercial 260 173 200 10 1/4 6 13/16 7 7/8
34R 12 Auto / LD Commercial 260 173 200 10 1/4 6 13/16 7 7/8
35 12 Auto / LD Commercial 230 175 225 9 1/16 6 7/8 8 7/8
36R 12 Auto / LD Commercial 263 183 206 10 3/8 7 1/4 8 1/8
40R 12 Auto / LD Commercial 277 175 175 10 15/16 6 7/8 6 7/8
41 12 Auto / LD Commercial 293 175 175 11 3/16 6 7/8 6 7/8
42 12 Auto / LD Commercial 243 173 173 9 5/16 6 13/16 6 13/16
43 12 Auto / LD Commercial 334 175 205 13 1/8 6 7/8 8 1/16
45 12 Auto / LD Commercial 240 140 227 9 7/16 5 1/2 8 15/16
46 12 Auto / LD Commercial 273 173 229 10 3/4 6 13/16 9
47 12 Auto / LD Commercial 246 175 190 9 11/16 6 7/8 7 1/2
48 12 Auto / LD Commercial 306 175 192 12 1/16 6 7/8 7 9/16
49 12 Auto / LD Commercial 381 175 192 15 6 7/8 7 3/16
50 12 Auto / LD Commercial 343 127 254 13 1/2 5 10
51 12 Auto / LD Commercial 238 129 223 9 3/8 5 1/16 8 13/16
51R 12 Auto / LD Commercial 238 129 223 9 3/8 5 1/16 8 13/16
52 12 Auto / LD Commercial 186 147 210 7 5/16 5 13/16 8 1/4
53 12 Auto / LD Commercial 330 119 210 13 4 11/16 8 1/4
54 12 Auto / LD Commercial 186 154 212 7 5/16 6 1/16 8 3/8
55 12 Auto / LD Commercial 218 154 212 8 5/8 6 1/16 8 3/8
56 12 Auto / LD Commercial 254 154 212 10 6 1/16 8 3/8
57 12 Auto / LD Commercial 205 183 177 8 1/16 7 3/16 6 15/16
58 12 Auto / LD Commercial 255 183 177 10 1/16 7 3/16 6 15/16
58R 12 Auto / LD Commercial 255 183 177 10 1/16 7 3/16 6 15/16
59 12 Auto / LD Commercial 255 193 196 10 1/16 7 5/8 7 3/4
60 12 Auto / LD Commercial 332 160 225 13 1/16 6 5/16 8 7/8
61 12 Auto / LD Commercial 192 162 225 7 9/16 6 3/8 8 7/8
62 12 Auto / LD Commercial 225 162 225 8 7/8 6 3/8 8 7/8
63 12 Auto / LD Commercial 258 162 225 10 3/16 6 3/8 8 7/8
64 12 Auto / LD Commercial 296 162 225 11 11/16 6 3/8 8 7/8
65 12 Auto / LD Commercial 306 190 192 12 1/16 7 1/2 7 9/16
70 12 Auto / LD Commercial 208 179 196 8 3/16 7 1/16 7 11/16
71 12 Auto / LD Commercial 208 179 216 8 3/16 7 1/16 8 1/2
72 12 Auto / LD Commercial 230 179 210 9 1/16 7 1/16 8 1/4
73 12 Auto / LD Commercial 230 179 216 9 1/16 7 1/16 8 1/2
74 12 Auto / LD Commercial 260 184 222 10 1/4 7 1/4 8 3/4
75 12 Auto / LD Commercial 230 179 196 9 1/16 7 1/16 7 11/16
76 12 Auto / LD Commercial 334 179 216 13 1/8 7 1/16 8 1/2
78 12 Auto / LD Commercial 260 179 196 10 1/4 7 1/16 7 11/16
85 12 Auto / LD Commercial 230 173 203 9 1/16 6 13/16 8
86 12 Auto / LD Commercial 230 173 203 9 1/16 6 13/16 8
90 12 Auto / LD Commercial 246 175 175 9 11/16 6 7/8 6 7/8
91 12 Auto / LD Commercial 280 175 175 11 6 7/8 6 7/8
92 12 Auto / LD Commercial 317 175 175 12 1/2 6 7/8 6 7/8
93 12 Auto / LD Commercial 354 175 175 15 6 7/8 6 7/8
95R 12 Auto / LD Commercial 394 175 190 15 9/16 6 7/8 7 1/2
96R 12 Auto / LD Commercial 242 173 175 9 9/16 6 13/16 6 7/8
97R 12 Auto / LD Commercial 252 175 190 9 15/16 6 7/8 7 1/2
98R 12 Auto / LD Commercial 283 175 190 11 3/16 6 7/8 7 1/2
GC2 6 Golf Cart 264 183 270 10 3/8 7 3/16 10 5/8
GC2H 6 Golf Cart 264 183 295 10 3/8 7 3/16 11 5/8
U1                
U1R                
                 

Note 1: The maximum height includes the terminal posts. Width and length measurements are generally to the widest point, including protruding flanges, except for hold-down flanges at the bottom of the battery. See the diagrams in the BCI battery Replacement Data Book for full details.