18v vs 20v Drills: Which Drill Is More Powerful?

Plenty of people are confused between18v vs 20v Drills. Is there any difference between 18 volts and 20 volts? Between both, which is better? When the specifications of the drills are the same, then why manufacturers make 18V and 20V drills? All the above questions are common that comes into a person’s mind before buying a drill for him.

18v vs 20v Drills

Some people think 20V is more potent than 18V. It seems correct, but it is not just about the power. There are many similarities and dissimilarities in both voltage rating drills. To clear your ambiguity, stay tuned to the topic. We are going to describe figures and facts about 18V and 20V to provide you a critical understanding. Let’s have a look at the background first.

18 Volts vs 20 Volts Drills Background Knowledge

In some recent years, a considerable number of batteries are coming into the market. Besides 18V and 20V, other voltage ratings such as 12V batteries and drills are also in the market. As a fact of experience, most of the experts who are using different drills with individual ratings said 18V performance is better as compared to 20V. This was only true when they were not aware of 20V liability.

The fact is, there are a lot of opinions and results from experienced persons, manufacturers, and amateurs. We cannot come to a single end result, but we can set a better statement by previous and present facts and figures. Besides other people’s opinions, you need to keep some points in mind that we will discuss now.


If we talk about 18v vs 20v Drills batteries, we will realize that both are almost similar in design. Both have five cells that are connected in a series combination. They are wired in parallel manners.  Let’s raise a point here that the battery has the huge amp-hours capacity and also has more power, such as watt-hours.

Now we are going to analyze more in-depth. Each battery cells have a rating of 3.6V that results in a nominal 18V when connected. At the same time, the 20V battery has a nominal rating of 4.0 Volts. Consequently, while using an 18V battery, you must consider a nominal rating and a maximum rating for 20V. This is the primary difference between these voltages products.

18 Volts vs. 20 Volts Drills – Which Drill Should You Choose For Your Work ?

From the above discussion, it must be clear that both voltages produce the same amount of output power. The difference is only in the label and cell ratings. Furthermore, 18V batteries and devices are standard in the United States, while 20V is exported to other world regions. But the power output is the same.

One more thing you must keep in mind that tools and accessories are available separately for both voltage rating devices. The point is, again, the same people consider 20V devices more robust.

At the moment, we are sharing more information to make you able to choose the best drill for you.


Cost is the primary factor you need to consider because both types of drills have different prices. Just not assume the cost to judge a drill and check for the prices of other drills and models in the market whenever you want to buy. An 18V budgeted drill can also provide you an extraordinary functionality rather than a costly 20V drill. So, take your decision wisely.


It is evident that 20V drill power is more than 18V, but it’s the net power we are talking about. The yielded output of both drills is different in terms of torque and speed. That is why the only power is not compulsory, you also need to know your required output power type according to the application.

The Torque: 

Besides the rated voltage, you need to know the maximum output torque according to your application. If an 18V drill provides more torque than a 20V drill, you must go for 18V and vice versa. The reason is that if a drill gives more torque, then it is better for more precise drilling.


Most people think it’s better to have drill having more speed. But let us clear the concept that if a drill has more rate, it will produce less torque and vice versa. That is why prefer drill with more torque over speed.

Wight and Size of Drill: 

Weight and size are significant parameters that you need to consider before buying 18V or 20V drills. Generally, 20V drills are heavier than 18V, and you have to face many difficulties while doing your job. It is difficult to hold for hours of work. Alternatively, 18V drills are lighter in weight and easy to handle while working.

If we talk about the size, now you have to analyze the working space. If you are working in a tight area, then you must choose the compact size product that is obviously 18V than 20V. So, that it gives you ease while working not fatigue.


Usability is a crucial factor and helps you a lot on your job like a light indicator, sound, overheating indication, trigger lock, grabbing the handle, etc. This is because such things make it easy to use even for beginners. That is why check for these things too before buying a drill.


Before selecting an 18V or 20V drill, it is necessary to first research the manufacturer brands and also check the reviews of the customers who used them previously. After that make a list of the top brands, and use that list to choose your product. Many brands have are reputed among the users like Dewalt and Makita due to their robust products.

Kit / Accessories: 

If you are choosing between 18V or 20V, check for the accessories also they are giving with the product. The reason is that accessories will make your work easier and also will save money to buy those accessories separately.


Consequently, all the facts emphasize that there is not an original difference between 18V or 20V drills. These are usually advertisement terms. The thing is that you must know about your budget, your application, and the output quantity that you need the most before purchase.

Leave a Comment