Quick answer:
The John Deere 3020 battery size is listed as Group 3EE, 6 V, 850 CCA.
Battery sizeGroup 3EE
Voltage6 V
CCA850 CCA
John Deere 3020 Battery Specs
| Battery size / group | Group 3EE |
|---|---|
| Battery voltage | 6 V |
| Battery CCA | 850 CCA |
Battery Spec Comparisons Chart
CCA comparison
Voltage comparison
John Deere 3020 Battery FAQ
| Battery voltage | The John Deere 3020 tractor uses a 12-volt electrical system with two 6-volt batteries connected in series |
|---|---|
| Battery group size | The official battery group size for the John Deere 3020 tractor is Group 3EE. This size is specifically designed for the tractor’s requirements |
| Battery CCA | The recommended Cold Cranking Amps (CCA) for the John Deere 3020 tractor is 850 CCA. This ensures reliable starting performance, especially in cold weather conditions |
| Battery location | The battery on the John Deere 3020 tractor is typically located under the right access step. You may need to remove the access step to reach it |
| Battery replacement steps | To replace the battery on a John Deere 3020 tractor, first, disconnect the negative terminal followed by the positive terminal. Then, remove the old battery and install the new one by connecting the positive terminal first, followed by the negative terminal. Wikipedia SlideShare |
| Bad battery symptoms | Common symptoms of a failing battery in a John Deere 3020 tractor include hard starting, clicking sounds when trying to start, rapid battery drain, and visible corrosion on battery terminals. If the battery is not holding a charge or shows low voltage, it may need to be replaced |
Official information note
Mistakes do happen. Please check official deere.com website for official information.







