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12 Volt Conventional (aka Lead Acid) Type Battery Sizes
12 Volt lead acid or conventional motorcycle batteries can usually be distinguished by a row of plastic stoppers in the top (3 stoppers in a 6 volt battery & 6 stoppers in a 12 volt battery).
Lead acid batteries usually have higher & lower battery acid levels on the front & have a white/clear plastic lower casing.
Conventional motorcycle batteries reference numbers usually start with the letters YB, CB or GB (e.g YB14L-A2) or 12N (e.g 12N24-3).
Different manufacturers use different 1st letters (e.g CB14L-A2, GB14L-A2 & YB14L-A2 are all the same battery)
For 6 Volt Conventional Motorcycle Battery sizes & info CLICK HERE
YB/GB/CB Prefix Motorcycle Batteries
Click on the blue link in the battery column on the left to view prices
| Battery | Voltage | Capactiy (amp/hr) | L (mm) | W (mm) | H (mm) | Approx Weight (KG-not inc acid) | Approx Battery Acid (litres) |
Charge Current (amps) |
Terminal Location | CCA (cold cranking amps) |
|---|---|---|---|---|---|---|---|---|---|---|
| YB2.5L-C/A | 12 | 2.5 | 81 | 71 | 105 | 0.710kg | 0.192 | 0.25 | ![]() |
25 |
| YB3L-A | 12 | 3 | 98 | 57 | 111 | 0.940kg | 0.204 | 0.3 | ![]() |
32 |
| YB3L-B | 12 | 3 | 98 | 57 | 111 | 1.000kg | 0.204 | 0.3 | 32 | |
| YB4L-A | 12 | 4 | 120 | 70 | 92 | 1.330kg | 0.294 | 0.4 | 50 | |
| YB4L-B | 12 | 4 | 120 | 70 | 92 | 1.330kg | 0.294 | 0.4 | 50 | |
| YB5L-B | 12 | 5 | 120 | 61 | 130 | 1.530kg | 0.39 | 0.5 | 55 | |
| YB7-A (aka 12N7-4A) | 12 | 8 | 135 | 75 | 133 | 2.300kg | 0.636 | 0.8 | 90 | |
| YB7L-B (aka 12N7-3B) | 12 | 7 | 135 | 75 | 134 | 2.300kg | 0.636 | 0.8 | 74 | |
| YB7C-A (aka YB7CZ-3B) | 12 | 8 | 130 | 90 | 116 | 2.200kg | 0.504 | 0.8 | 80 | |
| YB9-B | 12 | 9 | 135 | 75 | 139 | 2.340kg | 0.636 | 0.9 | 130 | |
| Maintenance free YB9-B |
12 | 9 | 135 | 75 | 139 | 2.340kg | 0.636 | 0.9 | 130 | |
| YB9L-A2 | 12 | 9 | 135 | 75 | 139 | 2.340kg | 0.636 | 0.9 | ![]() |
130 |
| YB9L-B (aka 12N9-3B) | 12 | 9 | 137 | 76 | 139 | 2.340kg | 0.636 | 0.9 | 130 | |
| YB10L-A2 | 12 | 11 | 135 | 90 | 145 | 3.000kg | 0.78 | 1.1 | ![]() |
160 |
| YB10L-B2 | 12 | 11 | 136 | 90 | 146 | 3.000kg | 0.78 | 1.1 | 160 | |
| YB12A-A | 12 | 12 | 134 | 80 | 160 | 2.870kg | 0.81 | 1.2 | 165 | |
| YB12AL-A2 | 12 | 12 | 135 | 81 | 162 | 2.870kg | 0.81 | 1.2 | ![]() |
165 |
| YB12A-B | 12 | 12 | 135 | 81 | 162 | 2.870kg | 0.81 | 1.2 | 165 | |
| YB14-A2 | 12 | 14 | 134 | 89 | 166 | 3.500kg | 0.84 | 1.4 | 190 | |
| YB14A-A2 | 12 | 14 | 134 | 89 | 178.5 | 3.500kg | 0.84 | 1.4 | 190 | |
| YB14-B2 | 12 | 14 | 134 | 89 | 166 | 3.500kg | 0.84 | 1.4 | 190 | |
| YB14L-A2 | 12 | 14 | 134 | 89 | 166 | 3.500kg | 0.84 | 1.4 | 190 | |
| Maintenance free YB14L-A2 |
12 | 12 | 134 | 89 | 166 | 3.500kg | 0.84 | 1.4 | 210 | |
| YB14L-B2 | 12 | 14 | 134 | 89 | 166 | 3.500kg | 0.84 | 1.4 | 190 | |
| YB16AL-A2 | 12 | 16 | 205 | 70 | 162 | 4.100kg | 1.08 | 1.6 | 175 | |
| YB16B-A | 12 | 16 | 150 | 90 | 181 | 3.620kg | 1.02 | 1.6 | 175 | |
| YB16-B | 12 | 19 | 175 | 100 | 155 | 4.950kg | 1.23 | 1.9 | 240 | |
| YB18L-A2 | 12 | 18 | 181 | 90.5 | 164 | 4.650kg | 1.2 | 1.8 | 235 | |
| Y50-N18L-A2 | 12 | 20 | 205 | 90 | 162 | 4.700kg | 1.47 | 2 | 260 | |
| Y60-N24L-A | 12 | 24 | 185 | 126 | 173 | 5.700kg | 1.770 | 2.4 | 218 |
12N Prefix (older style) Motorbike Batteries
Click on the blue link in the battery column on the left to view prices
| Battery | Voltage (V) | Capactiy (Amps per hour) | L (mm) | W (mm) | H (mm) | Approx Weight (KG-not inc acid) | Approx Battery Acid (L) |
Charge Current(A) | Terminal Location | CCA (cold cranking amps) |
|---|---|---|---|---|---|---|---|---|---|---|
| 12N5.5-4A | 12 | 5.5 | 138 | 61 | 131 | 1.590kg | 0.480 | 0.5 | 40 | |
| 12N5.5A-3B | 12 | 5.5 | 104 | 91 | 114.5 | 1.700kg | 0.480 | 0.55 | 44 | |
| 12N5.5-3B | 12 | 5.5 | 138 | 61 | 131 | 1.590kg | 0.480 | 0.55 | 55 | |
| 12N7-4A (aka YB7-A) |
12 | 8 | 135 | 75 | 133 | 2.300kg | 0.636 | 0.8 | 90 | |
| 12N7-3A | 12 | 7 | 135 | 75 | 135 | 2.300kg | 0.636 | 0.8 | 74 | |
| 12N7-3B (aka YB7L-B) |
12 | 7 | 135 | 75 | 134 | 2.300kg | 0.636 | 0.8 | 74 | |
| 12N9-4B-1 (aka YB9-B) |
12 | 9 | 135 | 75 | 139 | 2.3400kg | 0.636 | 0.9 | 130 | |
| 12N9-3B (aka YB9L-B) |
12 | 9 | 137 | 76 | 139 | 2.3400kg | 0.636 | 0.9 | 130 | |
| 12N11-3A-1 | 12 | 11 | 155 | 90 | 135 | 2.930kg | 0.750 | 1.1 | ![]() |
103 |
| 12N10-3A (aka YB10L-A2) |
12 | 11 | 135 | 90 | 145 | 3.000kg | 0.78 | 1.1 | ![]() |
160 |
| 12N10-3B (aka YB10L-B2) |
12 | 11 | 136 | 90 | 146 | 3.000kg | 0.78 | 1.1 | 160 | |
| 12N12A-4A-1 (aka YB12A-A) |
12 | 12 | 134 | 80 | 160 | 2.870kg | 0.81 | 1.2 | 165 | |
| 12N14-3A (aka YB14L-A2) |
12 | 14 | 134 | 89 | 166 | 3.500kg | 0.84 | 1.4 | 190 | |
| 12N24-3 | 12 | 24 | 185 | 126 | 173 | 5.700kg | 1.770 | 2.4 | 218 | |
| 12N24-4 (aka B68-12) |
12 | 24 | 185 | 126 | 173 | 5.700kg | 1.770 | 2.4 | 218 |






