The John Deere 6120M battery size is listed as Group 31, 12 V, 13 × 6.81 × 9.44 in.
Battery sizeGroup 31
Voltage12 V
Case size13 × 6.81 × 9.44 in
John Deere 6120M Battery Specs
Battery size / group
Group 31
Battery voltage
12 V
Battery dimensions
13 × 6.81 × 9.44 in
Battery Spec Comparisons Chart
Voltage comparison
This model
12 V
Average
11.94 V
Low
6 V
High
12 V
Case length comparison
This model
13 in
Average
11.57 in
Low
9.38 in
High
13 in
John Deere 6120M Battery FAQ
Replacement battery recommendation
The best replacement battery for the John Deere 6120M tractor is the John Deere StrongBox battery, which is designed to meet the demanding specifications of the equipment. It is known for its durability and reliability in harsh conditions
Battery voltage
The official battery voltage for the John Deere 6120M tractor is 12 volts
Battery group size
The official battery group size for the John Deere 6120M tractor is BCI Group 31. This battery type is designed to provide reliable power and performance for the tractor
Battery CCA
The recommended official John Deere 6120M tractor battery has a Cold Cranking Amps (CCA) rating of 1150. This ensures reliable starting power for the tractor
Battery location
The battery on the John Deere 6120M tractor is located underneath the right access step. Open the flap and, if necessary, remove the access step by taking out the attaching screws
Battery replacement steps
To replace the battery on a John Deere 6120M tractor, locate the battery underneath the right access step, open the flap, and if necessary, remove the access step by taking out the attaching screws. Make sure to disconnect any light connectors if the tractor has step lighting before removing the step
Bad battery symptoms
Common symptoms of a failing battery in a John Deere 6120M tractor include hard starting or no response when trying to start, rapid battery drain, and visible corrosion on battery terminals. If the battery is unable to hold a charge or shows low voltage, it may need to be replaced
Official information note
Mistakes do happen. Please check official deere.com website for official information.
