Quick answer:
The John Deere LA105 battery size is listed as 12 V.
Voltage12 V
John Deere LA105 Battery Specs
| Battery voltage | 12 V |
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Battery Spec Comparisons Chart
Voltage comparison
John Deere LA105 Battery FAQ
| Replacement battery recommendation | The best replacement battery for the John Deere LA105 tractor is the AJC-U1-300-199856, which is a sealed lead acid (AGM) battery designed for reliable performance. It is maintenance-free and arrives fully charged and ready to install |
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| Battery voltage | The official battery voltage for the John Deere LA105 tractor is 12 volts |
| Battery group size | The official battery group size for the John Deere LA105 tractor is U1 |
| Battery CCA | The recommended official John Deere LA105 tractor battery has a Cold Cranking Amperage (CCA) of 300. This specification ensures reliable starting power for the tractor |
| Battery location | The battery on the John Deere LA105 tractor is located underneath the right access step. You may need to open the flap and possibly remove the access step to access the battery |
| Battery replacement steps | To replace the battery on a John Deere LA105 tractor, disconnect the negative battery cable first, then the positive cable, and remove the battery. When installing the new battery, connect the positive cable first, followed by the negative cable. Wikipedia |
| Bad battery symptoms | Common symptoms of a bad battery in a John Deere LA105 include a single “click” or no sound when turning the key, dim or absent dashboard lights, and the engine cranking but not starting. Additionally, if the battery voltage is below 12.4 volts, it may need charging or replacement |
Official information note
Mistakes do happen. Please check official deere.com website for official information.







