Can you use a flat nail punch, hammer, angle iron, or other tools to crimp a wire rather of an RJ45 crimper?

Using a crimper correctly, you have the right to make a great joint between a wire and also a barrel of connector. But if I don’t have a crimping tool, what to use?

In truth, crimping a battery cable is not complex, and complicated machinery is not compelled to do this.

You are watching: How to crimp battery cable without a crimper

Considering this, just how to crimp a battery cable without a crimper? Let’s learn from the step-by-action procedure listed below.


In order to start the procedure, you will call for a few ingredients.

Cable: Make certain to select the suitable cable for your machinery bereason the different machine requirements various cables. Since a variety of cables are easily accessible, remember the listed below thumb preeminence.

For dry machines prefer tractors, cars, and so on, buy untreated copper wire.For wet devices favor jet skis, watercrafts, and so on, buy electroplated strands.

Solder Wire: Buy non-acidic rosin core solder wire bereason it is the safest to use for battery relations. The battery deserve to gain corroded or display concerns once exposed to electricity if you use acidic rosin core solder wire.

Rosin Fluid: At this point additionally, you will should buy non-acidic rosin fluid.

Other necessary ingredients are

ClampWirecutterButane torch

Tip 01: Cable Preparing

Take a heavy-duty cutter set, use it to clip the cable properly. The cable needs to be clipped evenly. Avoid utilizing a hackwitnessed or various other forms of saw bereason you will end up with unalso or jagged ends of cable if you do so, and also working will be hard.

Tip 02: Cut 1” of the Rubber Houtilizing to Expose the Cable

At this action, you need to be highly mindful not to cut the cable strands. Don’t rush, be patient and cut the rubber real estate just. To learn the cut-able measurement, take assistant from terminal lugs. Just align with the wire and check how lengthy the hole is, and then cut the rubber gently to fit into the original meta wire easily.

Don’t be worried if you cut the rubber real estate more than required; we will certainly reassemble the wire later.

Step 03: Remove any Loose Strands

Before making use of, pull off any unwound strands utilizing your fingers. This will rise the lifespan of your cable considering that you are removing any stray bits.

Tip 04: Attach 4”-5” of Sheathings

After you affix the terminal, gaining these sheapoints will certainly be complicated to affix. So, attach these prior to attaching the terminal. These sheapoints will certainly cover the exposed metal at the cable’s finish when completed.

Tip 05: Apply Rosin Fluid

Apply rosin liquid liberally making use of a cotton swab to the terminal’s inside and also the exposed cables. Once this liquid is heated up, a strong electrical connection occurs in between the 2 bits.

Step 06: Snug the Terminal Lug right into the Exposed Wires

Take the terminal lug and snug it into the exposed wires end carefully; push it as much as you deserve to.

Step 07: Use a Flat Nail Punch for Crimping the Terminal Lug

Now it is time to use a hammer. Angle iron or a flat nail punch. The punch needs to be inserted in the nuts center; hammer it tough so that the terminal gets crimped into the cable. Repeat the exact same procedure on the other side of the cable.

Tip 08: Place the Terminal Lug in a Clamp

We will certainly heat the linked area in the following action, which implies the entire thing will certainly be exceptionally warm. As a result, you will certainly not have the ability to hold the terminal lug with your hand. So, clamp the terminal lug dvery own so that you deserve to heat the totality thing easily.

Step 09: Use High-warmth Source to Heat Up the Lug and Boil Down the Rosin Fluid

The whole item demands to look nice, and the link has to be strong. For this, we will certainly need to warmth the lug and also boil down the rosin liquid.

Take a butane torch and revolve it up. Hold the cable in front of the butane torch and also gently turn it so that the entirety thing gets heated. Continue heating until you see the bubble of the rosin.

Tip 10: Use the non-reenergetic solder

Now we will certainly usage the non-reactive solder wire in this step. Use it to solder wbelow the bare wire started, and the terminal logs finished. It would certainly be finest to perform this just after the rosin fluid started boiling. Once finimelted, offer it a rest for 1 or 2 minutes before proceeding to the following action.

The solder requirements to be liquefied with sufficient heat.

Tip 11: Cut the Exposed Wire Strands

Some loose wire might gain exposed while putting the cable into the terminal. Use a wire cutter and sexpedition them off.

Tip 12: Cover the Exposed Metal through Sheathings

Now we attached a 4” – 5” sheathing in step # 5. Use it to cover the linked location to proccasion corrosion or rust. In fact, the link will certainly be safeguarded if you perform so. Similarly, the whole thing will certainly get a nice look. This sheathing will enhance the lifeexpectancy of the battery cables.


Make sure to reduced the wire cleanly. A clean-cut will let you attain the totality project successfully with less initiative and also less time.


While making those relationships, excessive warm is necessary. So, work in a clean and safe location. Wear security goggles, hand gloves, and also other essential safety gears.

Final Words

So, isn’t the procedure of how to crimp battery cable without a crimper so simple? The totality procedure will not let you confront many obstacles for certain.

When you don’t have an RJ45 crimper in your hand also and also the work requirements to be done instantly, you deserve to follow these measures. The result of this process will certainly be pretty equivalent to making use of a crimping tool.

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This DIY project will surely boost your confidence. Thanks for analysis this article.