| Model | SI50-N18L-AT |
| Ampere Hours, (AH) | 20 |
| Cold Cranking Amps (CCA) | 260 |
| Voltage | 12 |
| Length, inches | 8.1250 |
| Width, inches | 3.56250 |
| Height, inches | 6.37500 |
| Weight | 16 |
| Model | SI50-N18L-AT |
| Ampere Hours, (AH) | 20 |
| Cold Cranking Amps (CCA) | 260 |
| Voltage | 12 |
| Length, inches | 8.1250 |
| Width, inches | 3.56250 |
| Height, inches | 6.37500 |
| Weight | 16 |