The John Deere 9400T 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 9400T 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 9400T Battery FAQ
Replacement battery recommendation
The best replacement battery for a John Deere 9400 tractor is the John Deere StrongBox battery, which is designed to meet demanding specifications and provide durability and reliability. It is built tough to withstand vibration and harsh conditions, making it suitable for heavy-duty use
Battery voltage
The John Deere 9400T tractor uses a 12-volt battery system
Battery group size
The official battery group size for the John Deere 9400 tractor is Group 31. This size is commonly used for heavy-duty applications, including tractors
Battery location
The battery on the John Deere 9400T tractor is located in front of the radiator
Battery replacement steps
To replace the battery on a John Deere 9400T tractor, disconnect the negative cable first, then the positive cable, remove the battery hold-down, and lift the battery out. When installing the new battery, connect the positive cable first, followed by the negative cable
Bad battery symptoms
Common symptoms of a failing battery in a John Deere 9400T tractor include hard starting or no response when trying to start, rapid battery drain, and visible corrosion on battery terminals. Additionally, if the battery is not holding a charge or shows low voltage readings, it may need to be replaced
Official information note
Mistakes do happen. Please check official deere.com website for official information.
