Optima Heavy Duty Battery 
Optima YELLOWTOP 12V (D51R)
SPIRALCELL TECHNOLOGY

Specifications:
 
| Model Number | D51R | 
| Voltage | 12V | 
| Cold Cranking Amps @ -18C ( BCI ) | 450 | 
| Cold Cranking Amps @ -18C ( EN ) | 460 | 
| Cranking Amps @ 0C | 575 | 
| Reserve Capacity | 66 | 
| Capacity ( C/20 Rate ) | 38 | 
| Internal Resistance ( ohms ) | .0046 | 
| Dimension in CM ( L x W x H ) | 23.7 x 12.9 x 22.7 | 
| Weight ( KG ) | 11.8 | 
| Post Type | SAE | 
| BCI Group | 51R |