The John Deere 840 battery size is listed as Group 24F, 1000 CCA, 10.25 × 6.81 × 8.88 in.
Battery sizeGroup 24F
CCA1000 CCA
Case size10.25 × 6.81 × 8.88 in
John Deere 840 Battery Specs
Battery size / group
Group 24F
Battery CCA
1000 CCA
Battery dimensions
10.25 × 6.81 × 8.88 in
Battery Spec Comparisons Chart
CCA comparison
This model
1000 CCA
Average
839.52 CCA
Low
150 CCA
High
1850 CCA
Case length comparison
This model
10.25 in
Average
11.3 in
Low
9.38 in
High
13 in
John Deere 840 Battery FAQ
Battery voltage
John Deere 840 tractor batteries are 12-volt lead-acid batteries
Battery group size
The official battery group size for the John Deere 840 tractor is Group 24F. This size is suitable for providing high power for small-to-medium diesel engines commonly found in such tractors
Battery CCA
The recommended Cold Cranking Amps (CCA) for the John Deere 840 tractor battery is typically around 900-1000 CCA to ensure reliable starting, especially in cold weather
Battery location
The battery on the John Deere 840 tractor is located underneath the right access step. To access it, you may need to open the flap and possibly remove the access step by taking out the attaching screws
Bad battery symptoms
Common symptoms of a bad battery in a John Deere 840 tractor include hard starting or no response when trying to start, clicking sounds when attempting to start, 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.
