How to Convert a Cordless Drill into a Corded One

How to Convert a Cordless Drill into a Corded One
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How to Convert a Cordless Drill into a Corded One

If you have a cordless drill, you are probably well aware of how great these tools are. There is no denying the fact that not needing to always be plugged into a power source is really convenient. Cordless drills are quite convenient and mobile, plus they have a wide variety of jobs that you can use them for. That being said, cordless drills do have certain drawbacks.

One of the biggest drawbacks is that the batteries run out and need to be charged almost every day. However, even worse than that is the fact that the batteries will permanently die after a while. This means that you need to buy a new battery altogether. If you have to keep buying new batteries, it can start getting pretty expensive. Some people actually buy a new drill altogether when the battery on the old one dies.

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However, this is not necessarily something that you have to do; you don’t always have to buy new batteries and you certainly do not have to throw the drill out. There is actually a way to convert a cordless drill into a corded drill if needed. It is not that easy, it takes a lot of skill and knowledge, and you need to have the right tools, but it is definitely doable. How to convert a cordless drill into a corded one is the topic of the day.

The Skills You Will Need

First and foremost, this is not a Lego operation; it is not easy, and it is not something that you can just do on a whim. There are actually quite a few skills that you need in order to convert a cordless drill into a corded drill. Let’s talk about the knowledge, skills and tools you need to have in order to get this job done.


The number one most important skill you need in order to convert a cordless drill into a corded one is soldering. In other words, you need to be able to use a soldering iron and the necessary tools in order to solder wires together. You will need to solder the wires from a cord to the battery connecters on the cordless drill. If you get this wrong or just don’t do it right, the drill will not work.

Basic Electronics

You will need to know about basic electronics. You are going to be searching for wires, connectors, and you will need to connect the right wires and parts to each other in order to get this to work.

To be quite honest, if you do not feel comfortable with soldering or with wiring, you probably do not want to attempt this. You don’t want to end up causing a fire or frying yourself. Keep in mind that electrical work is dangerous, so always be careful, and if you are not confident in your knowledge and skills, you might want to look into buying a new battery or buying a new drill altogether.


Parts Needed

Before you get started with the conversion, you need to have the right tools and materials on hand. To do this properly, you need the following materials.

  • The drill you are to convert
  • Wall wart
  • Screwdriver
  • Sandpaper
  • Soldering equipment (butane torch, soldering iron, flux)
  • Wire cutter
  • Wire stripper

Step-By-Step Conversion

Now that we have discussed the skills, knowledge and equipment you need to do this, you need to know what the proper steps are. Let’s go through a step by step process so you can convert your cordless drill into a corded one. By the way, there are other ways to do this, but we are going to keep it simple. This method of converting your cordless drill into a corded one is the easiest and cheapest way to get the job done. Always remember to turn off all power supplies, or have them unplugged, before you get started.

  1. The first thing you need to do is to open the drill. You need to open up the housing so that you can get to the wiring and the battery clips. Beware – this will void your warranty so there is no turning back after you open your drill up. This is where your knowledge of wiring comes in handy because you will need to know which leads are which, both inside of the drill and the power supply.
  2. Take your power supply, or in other words, the power cord that you will be using to supply the power to the drill. Cut the end off of the power cord, the end that is going to be connected to the drill. If you have the parts, you can put a jack in the drill, but this is not necessary.
  3. Now, you need to strip and tin the ends of the wires on the new power supply so they are ready to solder. At the same time, you will need to sand, tin, and flux the battery connector. Now, that being said, you do not have to connect the wires to the battery connect; you can remove the battery connect and solder the wires right to each other.
  4. Now it is time to solder the wires from the new power supply to the battery clips on the inside. If you have removed the battery clips, you can solder the wires from the drill directly to the wires in the new power supply.
  5. If your knowledge of all things electrical is limited, chances are that you might solder the wrong wires together. So, if the drill does not work, you might have to take the wires apart and solder them back together the opposite way.


As you can see, it is possible to convert a cordless drill into a corded one. However, you need the right skills and knowledge to do this. Be careful and take your time because while this is not brain surgery, it’s also not child’s play.

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