The John Deere 940 battery size is listed as Group 31, 12 V, 1000 CCA, 13 × 6.81 × 9.44 in.
Battery sizeGroup 31
Voltage12 V
CCA1000 CCA
Case size13 × 6.81 × 9.44 in
John Deere 940 Battery Specs
Battery size / group
Group 31
Battery voltage
12 V
Battery CCA
1000 CCA
Battery dimensions
13 × 6.81 × 9.44 in
Battery Spec Comparisons Chart
CCA comparison
This model
1000 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
Case length comparison
This model
13 in
Average
11.3 in
Low
9.38 in
High
13 in
John Deere 940 Battery FAQ
Replacement battery recommendation
The best replacement battery for a John Deere 940 tractor is the John Deere StrongBox battery, which is designed to meet the demanding specifications of John Deere equipment. It is known for its durability and reliability in harsh conditions
Battery voltage
The John Deere 940 tractor uses two 12-volt batteries wired in series
Battery group size
The official battery group size for the John Deere 940 tractor is BCI Group Size 31. This size is suitable for the tractor’s electrical requirements and ensures proper fit and performance
Battery CCA
The recommended Cold Cranking Amps (CCA) for the John Deere 940 tractor battery is typically around 900-1000 CCA to ensure reliable starting, especially in cold weather
Battery location
The battery on the John Deere 940 tractor is located in the battery box on the right side of the tractor. To access it, you may need to loosen thumb screws and remove the battery box cover
Battery replacement steps
To replace the battery on a John Deere 940 tractor, first disconnect the negative (-) cable, then the positive (+) cable, and remove the battery hold down. After that, lift the battery out, clean the compartment, and install the new battery by reversing the steps
Bad battery symptoms
Common symptoms of a failing battery in a John Deere 940 tractor include hard starting or no response when trying to start, and rapid battery drain or inability to hold a charge. Additionally, you may notice corrosion on battery terminals or connections, which can prevent proper electrical flow
Official information note
Mistakes do happen. Please check official deere.com website for official information.
