| Model | D31M |
| Battery Group | 31 |
| Ampere Hours, (AH) | 75 |
| Cold Cranking Amps (CCA) | 900 |
| Reserve Capacity (at 25 Amps) | 155 |
| Voltage | 12 |
| Case Material | Polypropylene |
| Case Color | Light Gray |
| Cover Color | OPTIMA Blue |
| Length, inches | 12.81 |
| Width, inches | 6.56 |
| Height, inches | 9.38 |
| Weight | 60 |
| Internal Resistance | 0.0025 |