Complete battery specifications for your 2003 Infiniti Q50.
| Trim | Engine | Group Size | Cold Cranking Amps | Reserve Capacity | Terminal |
|---|---|---|---|---|---|
| Sport | 2.5L I4 | 51R | 552 CCA | 84 min | Top Post |
| King Ranch | 2.5L I4 | 51R | 544 CCA | 87 min | Top Post |
| Premium | 2.5L I4 | 24 | 485 CCA | 85 min | Side Post |
| SE | 2.5L I4 | 35 | 509 CCA | 81 min | Dual Terminal |
| Lariat | 2.5L I4 | 51 | 489 CCA | 79 min | Side Post |
| King Ranch | 5.0L V8 | 24 | 742 CCA | 128 min | Dual Terminal |
| SEL | 5.0L V8 | 25 | 793 CCA | 138 min | Side Post |
| Sport | 5.0L V8 | 51R | 700 CCA | 123 min | Side Post |
| Limited | 5.0L V8 | 25 | 805 CCA | 135 min | Side Post |
| Lariat | 2.4L I4 | 51 | 463 CCA | 69 min | Top Post |
| Limited | 2.4L I4 | 24 | 468 CCA | 74 min | Top Post |
| SE | 2.4L I4 | 35 | 493 CCA | 89 min | Dual Terminal |
| Premium | 2.4L I4 | 24 | 518 CCA | 88 min | Top Post |