The John Deere 6603 battery size is listed as Group 24F, 12 V, 900 CCA, 10.25 × 6.81 × 8.88 in.
Battery sizeGroup 24F
Voltage12 V
CCA900 CCA
Case size10.25 × 6.81 × 8.88 in
John Deere 6603 Battery Specs
Battery size / group
Group 24F
Battery voltage
12 V
Battery CCA
900 CCA
Battery dimensions
10.25 × 6.81 × 8.88 in
Battery Spec Comparisons Chart
CCA comparison
This model
900 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
Case length comparison
This model
10.25 in
Average
11.3 in
Low
9.38 in
High
13 in
John Deere 6603 Battery FAQ
Replacement battery recommendation
The best replacement battery for a John Deere 6603 tractor is the John Deere StrongBox battery, which is designed to meet demanding specifications and provide reliable performance. These batteries are built to withstand severe conditions and offer superior starting power
Battery voltage
The John Deere 6603 tractor battery voltage is 12 volts
Battery group size
The official battery group size for the John Deere 6603 tractor is BCI Group Size 24F, which is designed for compact and utility tractors. This battery provides high power for small-to-medium diesel engines and fits perfectly in common John Deere tractor compartments
Battery CCA
The recommended cold cranking amps (CCA) for the John Deere 6603 tractor battery is minimum 900 CCA to ensure reliable starting performance
Battery location
The battery on the John Deere 6603 tractor is located underneath the right access step. You may need to open the flap and possibly remove the access step to reach it
Bad battery symptoms
Common symptoms of a bad battery in a John Deere 6603 tractor include the engine not cranking, a clicking sound when starting, and slow cranking of the starter. Regularly checking the battery’s voltage and connections can help identify these issues early
Official information note
Mistakes do happen. Please check official deere.com website for official information.
