Complete battery specifications for your 2021 Acura RDX.
| Trim | Engine | Group Size | Cold Cranking Amps | Reserve Capacity | Terminal |
|---|---|---|---|---|---|
| Lariat | 3.6L V6 | 47 | 722 CCA | 110 min | Top Post |
| Sport | 3.6L V6 | 24 | 719 CCA | 109 min | Side Post |
| XL | 3.6L V6 | 51 | 658 CCA | 110 min | Side Post |
| Premium | 5.0L V8 | 35 | 755 CCA | 118 min | Side Post |
| XLT | 5.0L V8 | 24 | 744 CCA | 123 min | Side Post |
| Sport | 5.0L V8 | 51 | 800 CCA | 135 min | Side Post |
| SEL | 5.0L V8 | 51 | 760 CCA | 122 min | Side Post |
| Platinum | 5.0L V8 | 47 | 712 CCA | 124 min | Side Post |
| Platinum | 3.0L V6 | 24 | 714 CCA | 112 min | Side Post |
| XLT | 3.0L V6 | 25 | 614 CCA | 98 min | Side Post |