The John Deere 2840 battery size is listed as Group 30, 12 V, 700 CCA.
Battery sizeGroup 30
Voltage12 V
CCA700 CCA
John Deere 2840 Battery Specs
Battery size / group
Group 30
Battery voltage
12 V
Battery CCA
700 CCA
Battery Spec Comparisons Chart
CCA comparison
This model
700 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 2840 Battery FAQ
Replacement battery recommendation
The best replacement battery for the John Deere 2840 tractor is a BCI Group 30 battery with 700 CCA (Cold Cranking Amps). This specification ensures reliable starting performance for the tractor
Battery voltage
The John Deere 2840 tractor uses a 12-volt battery system
Battery group size
The official battery group size for the John Deere 2840 tractor is BCI Group 30, with a recommended cold cranking amps (CCA) of 700
Battery CCA
The recommended official John Deere 2840 tractor battery has a Cold Cranking Amps (CCA) rating of 700 CCA. This specification ensures reliable starting power, especially in cold weather conditions
Battery location
The battery on the John Deere 2840 tractor is located under the seat. It typically requires removing the seat or access panel to reach it
Battery replacement steps
To replace the battery on a John Deere 2840 tractor, first disconnect the negative (-) battery cable, then the positive (+) cable, and remove the battery. Install the new battery by connecting the positive cable first, followed by the negative cable
Bad battery symptoms
Common symptoms of a bad battery in a John Deere 2840 tractor include the engine cranking slowly, the starter clicking without the engine turning, and low battery voltage indicators. Regular checks of the battery’s electrolyte level and connections can help identify these issues
Official information note
Mistakes do happen. Please check official deere.com website for official information.
