The John Deere A battery size is listed as Group 6, 6 V.
Battery sizeGroup 6
Voltage6 V
John Deere A Battery Specs
Battery size / group
Group 6
Battery voltage
6 V
Battery Spec Comparisons Chart
Voltage comparison
This model
6 V
Average
11.66 V
Low
6 V
High
24 V
John Deere A Battery FAQ
Replacement battery recommendation
The best replacement battery for a John Deere A tractor is typically a John Deere StrongBox battery, which is designed to meet the demanding specifications of John Deere equipment. These batteries are known for their durability and reliability in agricultural conditions
Battery voltage
The official battery voltage for the John Deere Model A tractor is 6 volts. However, some owners have modified their tractors to use two 6-volt batteries in series, resulting in a 12-volt system
Battery group size
The official battery group size for the John Deere A tractor is BCI Group Size 6. This size is specifically designed to fit the tractor’s requirements for power and dimensions
Battery location
The battery on the John Deere A tractor is located under the hood. This design was standard for models built until mid-1946, after which the battery was typically placed under the seat
Battery replacement steps
To replace the battery on a John Deere A 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, and secure the battery in place
Bad battery symptoms
Common symptoms of a bad battery in a John Deere A tractor include hard starting or no response when trying to start, rapid battery drain, and visible corrosion on battery terminals. If the battery voltage is below 11.5V, it likely needs to be replaced
Official information note
Mistakes do happen. Please check official deere.com website for official information.
