Optima Heavy Duty Battery
Optima BLUETOP 12V (D31M) - Fit group size 27 marine boxes and trays
SPIRALCELL TECHNOLOGY
Specifications:
| Model Number | D31M |
| Voltage | 12V |
| Cold Cranking Amps @ -18C ( BCI ) | 900 |
| Cold Cranking Amps @ -18C ( EN ) | 975 |
| Cranking Amps @ 0C | 1125 |
| Reserve Capacity | 155 |
| Capacity ( C/20 Rate ) | 75 |
| Internal Resistance ( ohms ) | .0025 |
| Dimension in CM ( L x W x H ) | 32.5 x 16.5 x 23.8 |
| Weight ( KG ) | 27.1 |
| Post Type | Dual SAE & 5/6 Stud |
| BCI Group | 31 |
