The John Deere 120 battery size is listed as 12 V.
Voltage12 V
John Deere 120 Battery Specs
Battery voltage
12 V
Battery Spec Comparisons Chart
Voltage comparison
This model
12 V
Average
11.66 V
Low
6 V
High
24 V
John Deere 120 Battery FAQ
Replacement battery recommendation
The best replacement battery for the John Deere L120 tractor is the AJC-U1-300-199849, which is a sealed lead acid (AGM) battery designed for reliable performance. It is maintenance-free and arrives fully charged and ready to install. eBay
Battery voltage
The official battery voltage for the John Deere 120 tractor is 12 volts. eBay
Battery group size
The official John Deere 120 tractor battery group size is U1/U1R
Battery CCA
The recommended battery for the John Deere 120 tractor typically has a Cold Cranking Amperage (CCA) of around 300 to 400. For the most accurate specifications, it’s best to consult the official John Deere website or your owner’s manual
Battery location
The battery on the John Deere 120 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 120 tractor, first turn off the ignition and raise the hood. Then, disconnect the negative (-) battery cable first, followed by the positive (+) cable, and remove the old battery before installing the new one in reverse order
Bad battery symptoms
Common symptoms of a bad battery in a John Deere 120 tractor include the starter not working or failing to turn the engine, corroded battery terminals, and the battery not charging properly. Additionally, a dead cell in the battery or dirty battery cables can also indicate battery issues
Official information note
Mistakes do happen. Please check official deere.com website for official information.
