Complete battery specifications for your 2003 Buick Encore GX.
| Trim | Engine | Group Size | Cold Cranking Amps | Reserve Capacity | Terminal |
|---|---|---|---|---|---|
| Sport | 6.2L V8 | 47 | 753 CCA | 125 min | Side Post |
| Premium | 6.2L V8 | 25 | 827 CCA | 141 min | Dual Terminal |
| XL | 5.7L V8 | 48 | 823 CCA | 131 min | Side Post |
| Platinum | 5.7L V8 | 51 | 702 CCA | 119 min | Top Post |
| Sport | 5.7L V8 | 48 | 713 CCA | 125 min | Top Post |
| Premium | 5.7L V8 | 24 | 795 CCA | 121 min | Side Post |
| King Ranch | 5.7L V8 | 51R | 844 CCA | 129 min | Dual Terminal |
| XL | 2.5L I4 | 24 | 486 CCA | 82 min | Top Post |
| Base | 2.5L I4 | 35 | 534 CCA | 81 min | Side Post |
| Premium | 2.5L I4 | 24F | 502 CCA | 90 min | Side Post |