The John Deere 820 battery size is listed as Group 24T, 12 V.
Battery sizeGroup 24T
Voltage12 V
John Deere 820 Battery Specs
Battery size / group
Group 24T
Battery voltage
12 V
Battery Spec Comparisons Chart
Voltage comparison
This model
12 V
Average
11.54 V
Low
6 V
High
24 V
John Deere 820 Battery FAQ
Replacement battery recommendation
The best replacement battery for a John Deere 820 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 tough conditions
Battery voltage
The official battery voltage for the John Deere 820 tractor is 12 volts
Battery group size
The official John Deere 820 tractor battery group size is BCI Group 24T
Battery CCA
The recommended official John Deere 820 tractor battery has a Cold Cranking Amps (CCA) rating of 385-300. The specific part number for this battery is AT29158
Battery location
The battery on the John Deere 820 tractor is located on the left side beside the steps, accessed by pulling outward on the cover
Battery replacement steps
To replace the battery on a John Deere 820 tractor, first, locate the battery underneath the right access step and open the flap. If necessary, remove the access step by taking out the attaching screws, then disconnect any light connectors before removing the step to access the battery
Official information note
Mistakes do happen. Please check official deere.com website for official information.
