Quick answer:
The John Deere E100 battery size is listed as 12 V.
Voltage12 V
John Deere E100 Battery Specs
| Battery voltage | 12 V |
|---|
Battery Spec Comparisons Chart
Voltage comparison
John Deere E100 Battery FAQ
| Replacement battery recommendation | The AJC-U1-300-130303 is listed as a compatible replacement battery for the John Deere 100 U1 Lawn Mower and Tractor |
|---|---|
| Battery voltage | The official battery voltage for the John Deere E100 tractor is 12 volts |
| Battery group size | The official battery group size for the John Deere E100 tractor is SP12-35 NB (12 V 35 AH) |
| Battery CCA | The recommended official John Deere D100 tractor battery has a Cold Cranking Amperage (CCA) of 350. This specification ensures reliable starting power in cold conditions |
| Battery location | The battery on the John Deere E100 tractor is located underneath the right access step. To access it, you may need to open the flap and possibly remove the access step by taking out the attaching screws |
| Battery replacement steps | To replace the battery on a John Deere E100 tractor, first, locate the battery under the right access step and open the flap. If necessary, remove the access step by unscrewing it, then disconnect the battery terminals and replace the battery with a new one, reconnecting the terminals afterward. Wikipedia |
Official information note
Mistakes do happen. Please check official deere.com website for official information.



