Quick answer:
The John Deere 4030 battery size is listed as 12 V.
Voltage12 V
John Deere 4030 Battery Specs
| Battery voltage | 12 V |
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Battery Spec Comparisons Chart
Voltage comparison
John Deere 4030 Battery FAQ
| Replacement battery recommendation | The best replacement battery for the John Deere 4030 tractor is typically a high-capacity battery with over 100Ah, specifically designed for agricultural equipment. It’s recommended to check with John Deere or authorized dealers for the exact specifications and compatible options |
|---|---|
| Battery voltage | The John Deere 4030 tractor uses a 12-volt battery for gasoline engines and a 6-volt battery for diesel engines |
| Battery group size | The official battery group size for the John Deere 4030 tractor is 5D for diesel engines and 30H for gasoline engines |
| Battery CCA | The recommended official John Deere 4030 tractor battery has a Cold Cranking Amps (CCA) rating of 650. For specific battery options, it’s best to consult your local John Deere dealer |
| Battery location | The battery on the John Deere 4030 tractor is located underneath the right access step. You may need to open the flap and possibly remove the access step to reach it |
| Battery replacement steps | To replace the battery on a John Deere 4030 tractor, first, locate the battery under the right access step and remove the access step by unscrewing it. Then, disconnect the battery terminals, remove the old battery, and install the new one, ensuring to reconnect the terminals properly |
Official information note
Mistakes do happen. Please check official deere.com website for official information.







