Complete battery specifications for your 2026 GMC Sierra 2500.
| Trim | Engine | Group Size | Cold Cranking Amps | Reserve Capacity | Terminal |
|---|---|---|---|---|---|
| XLT | 6.2L V8 | 75 | 811 CCA | 134 min | Top Post |
| Lariat | 6.2L V8 | 94R | 801 CCA | 139 min | Dual Terminal |
| Premium | 6.2L V8 | 65 | 881 CCA | 140 min | Top Post |
| XL | 6.2L V8 | 65 | 800 CCA | 120 min | Top Post |
| SE | 3.5L V6 | 34 | 781 CCA | 129 min | Top Post |
| Sport | 3.5L V6 | 24F | 833 CCA | 125 min | Dual Terminal |
| SEL | 3.0L V6 | 24F | 777 CCA | 126 min | Dual Terminal |
| XLT | 3.0L V6 | 24F | 736 CCA | 113 min | Dual Terminal |
| Base | 3.0L V6 | 35 | 795 CCA | 134 min | Top Post |
| Sport | 3.0L V6 | 24F | 833 CCA | 126 min | Dual Terminal |