John Deere 6400 Battery Size (Group 31) + Replacement Guide

Quick answer:

The John Deere 6400 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 6400 Battery Specs

This model

12 V

Average

11.54 V

Low

6 V

High

24 V

This model

13 in

Average

11.3 in

Low

9.38 in

High

13 in

Replacement battery recommendation	The best replacement battery for a John Deere 6400 tractor is typically one with around 1200 cranking amps to ensure reliable starting, especially in cold weather. It’s recommended to consider a high-capacity battery, such as a Group 31 battery, which is commonly used for this model
Battery voltage	The official battery voltage for the John Deere 6400 tractor is 12 volts
Battery group size	The official battery group size for the John Deere 6400 tractor is Group 31. This size is commonly used for optimal performance in these tractors
Battery CCA	The recommended battery for the John Deere 6400 tractor typically requires around 1200 cranking amps (CCA) for optimal performance, especially in cold conditions
Battery location	The battery on the John Deere 6400 tractor is located underneath the right access step. You may need to open the flap and possibly remove the access step to reach it
Battery replacement steps	To replace the battery on a John Deere 6400 tractor, disconnect the negative (ground) cable first and the positive cable second, then remove the battery hold-down and install the new battery in reverse order, using a John Deere battery or equivalent. Wikipedia
Bad battery symptoms	The most common John Deere 6400 tractor bad battery symptoms include a clicking sound when turning the key, slow or weak cranking, and intermittent starting issues that may improve after cleaning battery posts or wiggling small ground wires