John Deere 6620 Premium Battery Size + Replacement Guide

Quick answer:

The John Deere 6620 Premium battery size is listed as 12 V.

Voltage12 V

John Deere 6620 Premium Battery Specs

Battery voltage 12 V

Battery Spec Comparisons Chart

Voltage comparison

This model

12 V

Average

11.94 V

Low

6 V

High

12 V

John Deere 6620 Premium Battery FAQ

Battery voltage The John Deere 6620 Premium tractor battery voltage is 12 volts
Battery group size The John Deere 6620 Premium tractor uses a 12-volt battery with a charging system alternator of 90 amps
Battery location The battery on the John Deere 6620 Premium tractor is located underneath the right access step
Official information note

Mistakes do happen. Please check official deere.com website for official information.