How To Wire A Winch To A Battery

Last Updated on September 26, 2022 by Automobile Note

We are supported by our audience. When you buy through links on our site, we may earn an affiliate commission. Learn more

When you find yourself in a sticky situation on the road, a winch can be a lifesaver whether in need of pulling, dragging, or lifting.

However, a winch can operate to its capacity only when it is installed and wired properly. But there could be a situation when your winch needs more power. So, you may be wondering whether you can winch to a battery! Yes, it is possible. But how do you do it- how to wire a winch to a battery?

This entails connecting wires from the battery of your truck to the truck winch. Once you understand what you need to do, wiring a winch to your truck's battery is pretty simple. To give you a clear idea, we have discussed the step-by-step process. So, let’s check them out.

Tools Needed to Wire A Winch to A Battery

Fortunately, other than what you'll already have in your winch tool kit, you won't require a large number of tools. You'll only need a 14mm Spanner wrench and possibly some gloves if you're concerned about getting shocked while dealing with the wires.

However, it is always wise to be aware of safety and take necessary precautions when working with electrical tools. If you're going to use a winch, be sure you're wearing protective gear.

Always use thick gloves and cover the winch wire with a sheet when it is running. If it breaks, the blanket will stop it from coming toward you, and the gloves will protect your hands.

5 Steps Guide To Directly Connecting Winch to Truck’s Battery

Step 1: Find The Right Cables

Firstly, you need to identify the positive cable. You will find a red cable connected to the positive socket of the winch control box.

Similarly, the brown or black cable is the negative cable, and you will find it connected to the ground post of the winch.

Step 2: Check for Wire Damages

To ensure safety, always check for any wire damages. The cables should be routed to the engine in a way so that it is not exposed to heat and friction from the truck.

Step 3: Connect The Wires

Once you have identified the cables and checked the wires, you need to connect the positive wire to the positive post on the truck's battery using a circuit breaker.

Similarly, connect the negative cable to the negative post.

Step 4: Check If Everything Is Working Fine

Check the nuts and bolts on your truck’s winch to ensure proper operations. Your winch should be working since all the wires are connected properly. If it still doesn’t, the cables may be damaged. In such cases, you should contact the manufacturer.

Step 5: Install And Configure

Install and configure quick disconnects that are compatible with the wire gauge used by the winch.

Connect the leads on both sides of the winch and the battery accurately.

That’s it. You have successfully wired the winch to a battery.

Wiring A Winch To Auxiliary Battery

With some simple exceptions and changes in steps, the process of wiring winches to auxiliary batteries is quite similar. The steps include:

Step 1: Place The Battery

The auxiliary battery must be installed with the vehicle battery, with an insulator separating them. Remember, the combined output of the batteries must equal 12 volts.

The auxiliary battery should be configured to absorb power as a reserve battery for the winch when you establish your connection.

Step 2: Check for Faults

Next, before inserting the positive and negative wires into the engine block, ensure they are not damaged and not being exposed to any heat and friction.

Step 3: Connect The Wires

Next, take the positive wire of the winch and connect it to the positive terminal. Then take the winch’s positive post and attach it to the positive terminal of the vehicle’s battery.

This is the same process that has been done with a direct connection using the truck’s battery.

Similarly, plug the negative cord into the negative terminal of the winch’s control box and then link the winch's negative post to the negative terminal.

Step 4: Install And Configure

Connect both the positive and negative leads on the winch to the positive and negative posts of the auxiliary battery, respectively.

Step 5: Ensure Quick Disconnects

Finally, ensure that all quick disconnects are compliant with the gauge of wire being used by connecting the truck lead to the auxiliary battery on the winch's side.


It’s no news that winches are very useful gears for off-road adventures for your vehicles.

However, it won’t do any good if it’s not installed and wired correctly.

Therefore, this simple guideline on wiring a winch to a battery will help you connect the winches with minimal hassle. It doesn’t take much time, and you’ll be able to wire it in no time!

So, get started, and good luck!

Related Posts You Can Also Read:

Leave a Comment

1 × 5 =