How to Change the Ground Circuit to a 12V Circuit

Twelve-volt electrical circuits, commonly used in automobiles, motorcycles, watercraft and lawn mowers, utilize a chassis ground. This ground circuit connects to the 12-volt electrical circuit and provides unused electricity a path to the ground. Because a vehicle chassis is made of steel, the chassis offers a wide range of mounting locations in the event you relocate a battery. For example, you can move a battery from the engine compartment to the trunk of an automobile. This provides additional weight over the rear axle of the vehicle for improved acceleration in race applications. Changing the location of a ground circuit in a 12-volt circuit is straightforward.

Wrench set
Drill
Drill-bit set
Scratch awl
Sandpaper or scraper

Instructions

- 1
  Locate the grounding point for the 12-volt circuit by tracing the black battery cable wire from the negative battery terminal to the location where the battery cable mounts to the chassis.
- 2
  Remove the bolt that secures the ground cable to the chassis.
- 3
  Drill a hole into the chassis at the new location where you want to ground the circuit. Use a drill bit that allows you to use the original bolt.
- 4
  Place the bolt in the hole and then trace around the bolt head with a scratch awl. Remove the bolt from the hole.
- 5
  Remove the paint from the chassis where you scribed. This ensures the bolt head makes contact with a metal surface. You can use sandpaper or a scraper to remove the paint.
- 6
  Place the bolt through the wire connector on the ground wire and then bolt the ground wire to the new location.

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