| Difference Between Common Battery Sizes |
| BCI Size & Model |
L in / mm BCI difference |
W in / mm BCI difference |
H in / mm BCI difference |
| BCI Group 1 |
9.13 inches / 232mm Rock 1228 is smaller by 4.63 inches |
7.13 inches / 181mm Rock 1228 is smaller by 1.88 inches |
9.38 inches / 238mm Rock 1228 is smaller by 2.38 inches |
| BCI Group 17HF |
7.38 inches / 187mm Rock 1228 is smaller by 2.88 inches |
6.88 inches / 175mm Rock 1228 is smaller by 1.63 inches |
9.00 inches / 229mm Rock 1228 is smaller by 2 inches |
| BCI Group 2 |
10.38 inches / 264mm Rock 1228 is smaller by 5.88 inches |
7.13 inches / 181mm Rock 1228 is smaller by 1.88 inches |
9.38 inches / 238mm Rock 1228 is smaller by 2.38 inches |
| BCI Group 21 |
8.19 inches / 208mm Rock 1228 is smaller by 3.69 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
8.75 inches / 222mm Rock 1228 is smaller by 1.75 inches |
| BCI Group 22F |
9.50 inches / 241mm Rock 1228 is smaller by 5 inches |
6.88 inches / 175mm Rock 1228 is smaller by 1.63 inches |
8.31 inches / 211mm Rock 1228 is smaller by 1.31 inches |
| BCI Group 22HF |
9.50 inches / 241mm Rock 1228 is smaller by 5 inches |
6.88 inches / 175mm Rock 1228 is smaller by 1.63 inches |
9.00 inches / 229mm Rock 1228 is smaller by 2 inches |
| BCI Group 22NF |
9.44 inches / 240mm Rock 1228 is smaller by 4.94 inches |
5.50 inches / 140mm Rock 1228 is smaller by 0.25 inches |
8.94 inches / 227mm Rock 1228 is smaller by 1.94 inches |
| BCI Group 22R |
9.00 inches / 229mm Rock 1228 is smaller by 4.5 inches |
6.88 inches / 175mm Rock 1228 is smaller by 1.63 inches |
8.31 inches / 211mm Rock 1228 is smaller by 1.31 inches |
| BCI Group 24 |
10.25 inches / 260mm Rock 1228 is smaller by 5.75 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
8.88 inches / 225mm Rock 1228 is smaller by 1.88 inches |
| BCI Group 24H |
10.25 inches / 260mm Rock 1228 is smaller by 5.75 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
9.38 inches / 238mm Rock 1228 is smaller by 2.38 inches |
| BCI Group 24R |
10.25 inches / 260mm Rock 1228 is smaller by 5.75 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
9.00 inches / 229mm Rock 1228 is smaller by 2 inches |
| BCI Group 24T |
10.25 inches / 260mm Rock 1228 is smaller by 5.75 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
9.75 inches / 248mm Rock 1228 is smaller by 2.75 inches |
| BCI Group 25 |
9.06 inches / 230mm Rock 1228 is smaller by 4.56 inches |
6.88 inches / 175mm Rock 1228 is smaller by 1.63 inches |
8.88 inches / 225mm Rock 1228 is smaller by 1.88 inches |
| BCI Group 26 |
8.19 inches / 208mm Rock 1228 is smaller by 3.69 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
7.75 inches / 197mm Rock 1228 is smaller by 0.75 inches |
| BCI Group 26R |
8.19 inches / 208mm Rock 1228 is smaller by 3.69 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
7.75 inches / 197mm Rock 1228 is smaller by 0.75 inches |
| BCI Group 28 |
10.31 inches / 261mm Rock 1228 is smaller by 5.81 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
9.44 inches / 240mm Rock 1228 is smaller by 2.44 inches |
| BCI Group 2N |
10.00 inches / 254mm Rock 1228 is smaller by 5.5 inches |
5.56 inches / 141mm Rock 1228 is smaller by 0.31 inches |
8.94 inches / 227mm Rock 1228 is smaller by 1.94 inches |
| BCI Group 34 |
10.25 inches / 260mm Rock 1228 is smaller by 5.75 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
7.88 inches / 200mm Rock 1228 is smaller by 0.88 inches |
| BCI Group 34R |
10.25 inches / 260mm Rock 1228 is smaller by 5.75 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
7.88 inches / 200mm Rock 1228 is smaller by 0.88 inches |
| BCI Group 35 |
9.06 inches / 230mm Rock 1228 is smaller by 4.56 inches |
6.88 inches / 175mm Rock 1228 is smaller by 1.63 inches |
8.88 inches / 225mm Rock 1228 is smaller by 1.88 inches |
| BCI Group 36R |
10.38 inches / 263mm Rock 1228 is smaller by 5.88 inches |
7.25 inches / 183mm Rock 1228 is smaller by 2 inches |
8.13 inches / 206mm Rock 1228 is smaller by 1.13 inches |
| BCI Group 42 |
9.31 inches / 243mm Rock 1228 is smaller by 4.81 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
6.81 inches / 173mm Rock 1228 is larger by 0.19 inches |
| BCI Group 45 |
9.44 inches / 240mm Rock 1228 is smaller by 4.94 inches |
5.50 inches / 140mm Rock 1228 is smaller by 0.25 inches |
8.94 inches / 227mm Rock 1228 is smaller by 1.94 inches |
| BCI Group 47 |
9.69 inches / 246mm Rock 1228 is smaller by 5.19 inches |
6.88 inches / 175mm Rock 1228 is smaller by 1.63 inches |
7.50 inches / 190mm Rock 1228 is smaller by 0.5 inches |
| BCI Group 51 |
9.38 inches / 238mm Rock 1228 is smaller by 4.88 inches |
5.06 inches / 129mm Rock 1228 is larger by 0.19 inches |
8.81 inches / 223mm Rock 1228 is smaller by 1.81 inches |
| BCI Group 51R |
9.38 inches / 238mm Rock 1228 is smaller by 4.88 inches |
5.06 inches / 129mm Rock 1228 is larger by 0.19 inches |
8.81 inches / 223mm Rock 1228 is smaller by 1.81 inches |
| BCI Group 52 |
7.31 inches / 186mm Rock 1228 is smaller by 2.81 inches |
5.81 inches / 147mm Rock 1228 is smaller by 0.56 inches |
8.25 inches / 210mm Rock 1228 is smaller by 1.25 inches |
| BCI Group 54 |
7.31 inches / 186mm Rock 1228 is smaller by 2.81 inches |
6.06 inches / 154mm Rock 1228 is smaller by 0.81 inches |
8.38 inches / 212mm Rock 1228 is smaller by 1.38 inches |
| BCI Group 55 |
8.63 inches / 218mm Rock 1228 is smaller by 4.13 inches |
6.06 inches / 154mm Rock 1228 is smaller by 0.81 inches |
8.38 inches / 212mm Rock 1228 is smaller by 1.38 inches |
| BCI Group 56 |
10.00 inches / 254mm Rock 1228 is smaller by 5.5 inches |
6.06 inches / 154mm Rock 1228 is smaller by 0.81 inches |
8.38 inches / 212mm Rock 1228 is smaller by 1.38 inches |
| BCI Group 57 |
8.06 inches / 205mm Rock 1228 is smaller by 3.56 inches |
7.19 inches / 183mm Rock 1228 is smaller by 1.94 inches |
6.94 inches / 177mm Rock 1228 is larger by 0.06 inches |
| BCI Group 58 |
10.06 inches / 255mm Rock 1228 is smaller by 5.56 inches |
7.19 inches / 183mm Rock 1228 is smaller by 1.94 inches |
6.94 inches / 177mm Rock 1228 is larger by 0.06 inches |
| BCI Group 58R |
10.06 inches / 255mm Rock 1228 is smaller by 5.56 inches |
7.19 inches / 183mm Rock 1228 is smaller by 1.94 inches |
6.94 inches / 177mm Rock 1228 is larger by 0.06 inches |
| BCI Group 59 |
10.06 inches / 255mm Rock 1228 is smaller by 5.56 inches |
7.63 inches / 193mm Rock 1228 is smaller by 2.38 inches |
7.75 inches / 196mm Rock 1228 is smaller by 0.75 inches |
| BCI Group 61 |
7.56 inches / 192mm Rock 1228 is smaller by 3.06 inches |
6.38 inches / 162mm Rock 1228 is smaller by 1.13 inches |
8.88 inches / 225mm Rock 1228 is smaller by 1.88 inches |
| BCI Group 62 |
8.88 inches / 225mm Rock 1228 is smaller by 4.38 inches |
6.38 inches / 162mm Rock 1228 is smaller by 1.13 inches |
8.88 inches / 225mm Rock 1228 is smaller by 1.88 inches |
| BCI Group 63 |
10.19 inches / 258mm Rock 1228 is smaller by 5.69 inches |
6.38 inches / 162mm Rock 1228 is smaller by 1.13 inches |
8.88 inches / 225mm Rock 1228 is smaller by 1.88 inches |
| BCI Group 70 |
8.19 inches / 208mm Rock 1228 is smaller by 3.69 inches |
7.06 inches / 179mm Rock 1228 is smaller by 1.81 inches |
7.69 inches / 196mm Rock 1228 is smaller by 0.69 inches |
| BCI Group 71 |
8.19 inches / 208mm Rock 1228 is smaller by 3.69 inches |
7.06 inches / 179mm Rock 1228 is smaller by 1.81 inches |
8.50 inches / 216mm Rock 1228 is smaller by 1.5 inches |
| BCI Group 72 |
9.06 inches / 230mm Rock 1228 is smaller by 4.56 inches |
7.06 inches / 179mm Rock 1228 is smaller by 1.81 inches |
8.25 inches / 210mm Rock 1228 is smaller by 1.25 inches |
| BCI Group 73 |
9.06 inches / 230mm Rock 1228 is smaller by 4.56 inches |
7.06 inches / 179mm Rock 1228 is smaller by 1.81 inches |
8.50 inches / 216mm Rock 1228 is smaller by 1.5 inches |
| BCI Group 74 |
10.25 inches / 260mm Rock 1228 is smaller by 5.75 inches |
7.25 inches / 184mm Rock 1228 is smaller by 2 inches |
8.75 inches / 222mm Rock 1228 is smaller by 1.75 inches |
| BCI Group 75 |
9.06 inches / 230mm Rock 1228 is smaller by 4.56 inches |
7.06 inches / 179mm Rock 1228 is smaller by 1.81 inches |
7.69 inches / 196mm Rock 1228 is smaller by 0.69 inches |
| BCI Group 78 |
10.25 inches / 260mm Rock 1228 is smaller by 5.75 inches |
7.06 inches / 179mm Rock 1228 is smaller by 1.81 inches |
7.69 inches / 196mm Rock 1228 is smaller by 0.69 inches |
| BCI Group 85 |
9.06 inches / 230mm Rock 1228 is smaller by 4.56 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
8.00 inches / 203mm Rock 1228 is smaller by 1 inches |
| BCI Group 86 |
9.06 inches / 230mm Rock 1228 is smaller by 4.56 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
8.00 inches / 203mm Rock 1228 is smaller by 1 inches |
| BCI Group 90 |
9.69 inches / 246mm Rock 1228 is smaller by 5.19 inches |
6.88 inches / 175mm Rock 1228 is smaller by 1.63 inches |
6.88 inches / 175mm Rock 1228 is larger by 0.12 inches |
| BCI Group 96R |
9.56 inches / 242mm Rock 1228 is smaller by 5.06 inches |
6.81 inches / 173mm Rock 1228 is smaller by 1.56 inches |
6.88 inches / 175mm Rock 1228 is larger by 0.12 inches |
| BCI Group 97R |
9.94 inches / 252mm Rock 1228 is smaller by 5.44 inches |
6.88 inches / 175mm Rock 1228 is smaller by 1.63 inches |
7.50 inches / 190mm Rock 1228 is smaller by 0.5 inches |
| BCI Group GC2 |
10.38 inches / 264mm Rock 1228 is smaller by 5.88 inches |
7.19 inches / 183mm Rock 1228 is smaller by 1.94 inches |
10.63 inches / 270mm Rock 1228 is smaller by 3.63 inches |
| BCI Group GC2H |
10.38 inches / 264mm Rock 1228 is smaller by 5.88 inches |
7.19 inches / 183mm Rock 1228 is smaller by 1.94 inches |
11.63 inches / 295mm Rock 1228 is smaller by 4.63 inches |