Quick answer:
The John Deere Z645 battery size is listed as 12 V, 340 CCA.
Voltage12 V
CCA340 CCA
John Deere Z645 Battery Specs
| Battery voltage | 12 V |
|---|---|
| Battery CCA | 340 CCA |
Battery Spec Comparisons Chart
CCA comparison
Voltage comparison
John Deere Z645 Battery FAQ
| Battery voltage | The official battery voltage for the John Deere Z645 tractor is 12 volts |
|---|---|
| Battery group size | The official John Deere Z645 tractor battery group size is 340 CCA with 12 volts |
| Battery CCA | The recommended battery for the John Deere Z645 has a Cold Cranking Amps (CCA) rating of 340 |
| Battery location | The official battery voltage for the John Deere Z645 tractor is 12 volts |
| Bad battery symptoms | Common symptoms of a failing battery in a John Deere Z645 tractor include hard starting or no response when trying to start, rapid battery drain, and visible corrosion on battery terminals. If the battery holds 11.5V or less, it likely needs replacement |
Official information note
Mistakes do happen. Please check official deere.com website for official information.







