How Many Watts Does A Laptop Use When Charging?

How Many Watts Does a Laptop Use When Charging
How Many Watts Does a Laptop Use When Charging

How many watts does a laptop use when charging?

The Laptop is an essential part of any student or office life. But our struggle to cope with the latest technologies remains the same. Having a good laptop is not a problem anymore as different prices with different varieties are available. But how to use them properly is still a big question.

Laptops have become an essential part of our daily lives, whether we use them for work, entertainment, or communication. However, one aspect of laptops that often goes unnoticed is the amount of power they consume. One of the most common questions people have is how many watts a laptop uses when charging. In this article, we will explore the answer to this question and provide you with some frequently asked questions on this topic.

60 to 90 Watt per Hour

With the evolution of technology, we have become dependent on it. Technology has entered into our daily lives so silently that we cannot imagine living without it. There are several tech devices present in this modern era. But the Laptop is one of those necessities without which we feel incomplete.

The Laptop is an essential part of any student or office life. But our struggle to cope with the latest technologies remains the same. Having a good laptop is not a problem anymore as different prices with different varieties are available. But how to use them properly is still a big question.

This might seem a simple question, but in reality, so many different factors lie in it. Usually, it is said that any laptop uses 60-90 watts per hour (WH) as per its charger. But there are other factors as well which affect the charging.

Different factors affecting the laptop charging

If you are looking for a simple and straight answer, it would be difficult to say that different factors can help you determine watts consumption.

The factors which play an essential part regarding the watts consumption when the laptops are being charged are as under;

  • Adapter
  • CPU
  • Dual graphics-card
  • Other parts of the Laptop in use

1. Laptop Adapter

The simple basic answer to this question is that any laptop’s watt consumption when being charged can be determined by the charger it has. Different-inch screen laptops have their adapters, and they charge according to that.

Any 15-inch laptop uses a 65-watt charger while a 17-inch laptop uses 90 Watts.

Usually, these two types of adapters are available these days, and any laptop gets charged according to the adapter, which consumes the watts.

If the electricity supply is not interrupted or the adapter is working correctly, then it is safe to assume that your Laptop can consume 60-90 WH.

2. Central Processing Unit

CPU is the heart of the working machine of any computer or Laptop. CPU is responsible for running the operating system and any application that you use.

There are so many programs available to enhance the performance of any CPU regardless of the Windows version. But when we get the fast CPU, the battery life gets less. That is because the CPU uses so much of the energy to perform up to the level that the battery gets exhausted.

Since the adapter provides the energy in the form of watts, the battery takes them and further provides this energy to the Laptop to work correctly. The extra load on the CPU means an additional burden on the battery.

But the watt consumption remains the same, which makes the life span of any battery of a laptop lesser day by day.

Also, not to mention the load the adapter has on it. But that is why it is called an adapter. It helps in overcoming such situations of watts usage.

3. Dual graphics card

Everyone does not use something that everyone uses, but whoever uses it knows how the battery gets drained because of heavy software and heavy usage of them.

These graphics cards are that heavy software supporter who not only enhances the screen resolutions and clarity. They also help in running and working with specific software.

The consumption of watts during charging is affected by a graphics card because it pushes the battery to get more energy, and the adapter has to work more.

Such a situation creates tension between the battery and the adapter. That is why we get the overheating of the adapter and the battery, which eventually results in the short life span of any laptop.

4. Other parts of the Laptop

Other parts include the screen, loud music, excessive usage of the internet, downloading, and other things. These all put super pressure on the battery and Laptop and, of course, on the charger.

They affect the charging as the Laptop is usually in use when it is being charged, and this is very bad for the health of the Laptop.

When we wish to know the exact number of watts being consumed by the Laptop while charging, we should close the Laptop and then try to find it because, at that moment, there is no pressure or load on the Laptop other than the charging itself.

Many instruments can easily measure such things as watts per Hour for a laptop. All you have to do is to attach that plug-in energy and power monitor to the device and note the reading.


Simply answering the question of how many watts a laptop use when charging is very straight. The number of watts its adapter supports, but this amount can increase as the watt requirement increases.

I must say no matter how much watt’s Laptop takes. You should try to minimize the load on the battery and let it get charged.

If you follow this pattern, this will give your Laptop a long life, and you will be able to have a long-lasting battery with you.

If you have any queries related to this topic or something else, just post your reply below. It will be our great pleasure to assist you.

Good Luck & Keep Visiting – LaptopsChamp

Frequently Asked Questions:

  1. Does charging a laptop consume more power than running it on battery power?

Yes, charging a laptop consumes more power than running it on battery power. When a laptop is charging, it requires energy to convert the AC power from the wall outlet into DC power that the laptop can use. This conversion process consumes energy and results in higher power consumption than when the laptop is running on battery power.

  1. Can charging a laptop damage the battery?

No, charging a laptop does not damage the battery. In fact, it is essential to charge your laptop regularly to keep the battery healthy and prolong its lifespan. Modern laptops have built-in charging circuitry that regulates the charging process to prevent overcharging and protect the battery from damage.

  1. Is it safe to charge a laptop overnight?

It is generally safe to charge a laptop overnight, but it’s not recommended. Charging a laptop overnight can lead to overcharging, which can damage the battery and reduce its lifespan. It’s best to unplug the charger once the laptop is fully charged to prevent overcharging.

  1. Can a laptop charger consume power even when it’s not plugged into the laptop?

Yes, a laptop charger can consume power even when it’s not plugged into the laptop. This is because the charger still consumes a small amount of power to maintain its internal circuitry and remain ready to charge the laptop when needed. However, the power consumption is minimal and typically ranges from 0.1 to 0.5 watts.

  1. Can using a non-OEM charger damage the laptop?

Using a non-OEM (original equipment manufacturer) charger can damage the laptop if the charger’s specifications are not compatible with the laptop. Non-OEM chargers may not provide the correct voltage or amperage required by the laptop, which can lead to overcharging, overheating, or other electrical problems. It’s best to use the charger provided by the laptop manufacturer to ensure compatibility and avoid damage to the laptop.

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  1. excellent post, very informative. I wonder why the other experts of this sector do not notice this. You must continue your writing. I am confident, you have a huge readers’ base already!

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