The John Deere 8RX 440 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 8RX 440 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
11.66 V
Low
6 V
High
24 V
Case length comparison
This model
13 in
Average
11.13 in
Low
7.75 in
High
13 in
John Deere 8RX 440 Battery FAQ
Replacement battery recommendation
The best replacement battery for the John Deere 8RX 440 tractor is the StrongBox Premium Battery, designed to meet demanding specifications and tested for durability. These batteries are built tough to ensure reliable performance in various conditions
Battery voltage
The official battery voltage for the John Deere 8R 440 tractor is 12 volts
Battery group size
The official battery group size for the John Deere 8RX 440 tractor is Group 31. This size is commonly used in heavy-duty applications for reliable performance
Battery CCA
The John Deere 8R 440 tractor uses batteries with a Cold Cranking Amps (CCA) rating of 950
Battery location
The battery on the John Deere 8RX 440 tractor is located in the battery box on the right side of the tractor. You can access it by loosening the thumb screws on both sides of the battery box cover
Bad battery symptoms
Common symptoms of a bad battery in a John Deere 8Rx 440 tractor include hard starting or no response when trying to start, clicking sounds, and rapid battery drain. Additionally, visible corrosion on battery terminals can also indicate battery issues
Official information note
Mistakes do happen. Please check official deere.com website for official information.
