The John Deere 6420 battery size is listed as Group 31P, 12 V, 1200 CCA.
Battery sizeGroup 31P
Voltage12 V
CCA1200 CCA
John Deere 6420 Battery Specs
Battery size / group
Group 31P
Battery voltage
12 V
Battery CCA
1200 CCA
Battery Spec Comparisons Chart
CCA comparison
This model
1200 CCA
Average
839.52 CCA
Low
150 CCA
High
1850 CCA
Voltage comparison
This model
12 V
Average
11.54 V
Low
6 V
High
24 V
John Deere 6420 Battery FAQ
Battery voltage
The official battery voltage for the John Deere 6420 tractor is 12 volts
Battery group size
The official battery group size for the John Deere 6420 tractor is Group 31P
Battery CCA
The recommended battery for the John Deere 6420 tractor typically requires around 1200 cold cranking amps (CCA) for optimal performance, especially in cold weather conditions
Battery location
The battery on the John Deere 6420 tractor is located at the front of the tractor. For access, refer to the section titled “Access to battery” in the manual
Battery replacement steps
To replace the battery on a John Deere 6420 tractor, first disconnect the battery ground cable and then remove the old battery. After that, install the new battery and reconnect the ground cable
Bad battery symptoms
Common symptoms of a bad battery in a John Deere 6420 tractor include the tractor not starting, the starter clicking but the engine not turning, and the engine cranking slowly. Additionally, loose or corroded battery connections can also lead to charging issues
Official information note
Mistakes do happen. Please check official deere.com website for official information.
