How to Identify a 6-Volt or a 12-Volt Tractor

by David Sandoval
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tractor image by Alison Bowden from Fotolia.com

Most vehicles with an internal combustion engine require a battery to provide electrical energy for starting. While most automobiles tractors, and lawnmowers make use of a 12-volt battery, not all do. If the battery has died on your tractor, purchasing the wrong battery will not only be a waste of money; it may also damage your tractor's electrical system.

If you do not have a copy of the owner's manual for that tractor, there is a relatively simple way to tell whether the electrical system produces 6 volts or 12 volts--by examining the installed battery.

Step 1

Open the battery compartment and find the battery.

Step 2

Count how many battery vents the battery contains. Battery vents are covered by small round plastic caps at the top of the battery.

Step 3

Multiply the number of battery vents by 2.1 volts. This will give you the approximate battery voltage (and by extension, the electrical system voltage as well).

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