Most commonly, a laptop uses 20-90 watts in general. Moreover, they may use different amounts of power for different types of work. I am discussing that all in more detail in this article.
Everyone uses a laptop nowadays as life is almost not possible without it. Laptops are used for various purposes such as office work, project work, gaming, video editing, blogging, affiliate marketing, and so many other things. When you use any gadget, you always think about how much power it consumes and all. Because ultimately, gadgets even with batteries take power from your electricity connection, and you have to be sure how much power consumption is done so that you can control your soaring electricity bill. Today, I am going to talk about how many watts a laptop consumes or uses.
Laptop Watt Consumption Table In General
|Laptop is off, and the battery charging||63W|
|The laptop is off, battery disconnected||1W|
|laptop off, sleeping||1W|
|Laptop on, idle on windows desktop||15W|
The answer to this question varies depending on what you are using your laptop for, how old it is, and what kind of power source you are using.
Moreover, it’s not just the amount of time that you’re on your laptop but it also depends on what type of tasks are being done and for how long. Sometimes, when you are using your laptop just for checking emails, and normal browsing, it may consume less power but, when you use it for playing high-end games, it can consume more power.
The average computer user uses about 30 watts an hour when browsing Facebook or watching Netflix. This number can jump up to 60-100 watts per hour if they are gaming or editing a video with their laptop plugged in at the same time.
But don’t worry! The good news is that laptops have become more energy-efficient over time so these numbers are lower than what was normal 5 years ago!
You should be able to get anywhere from 5-10 hours of battery backup before needing to recharge depending on which model you own and what you are using it for.
How Many Watts Does A Laptop Use?
Normally, laptops use between 20-90 watts in general but it can vary depending on what kind of work is being done on the laptop. Heavy resource-intensive tasks may consume more watts
Laptops that use more wattage will have shorter battery life. For example, if you are using an older laptop that uses 65 watts, then you can only expect 3 hours of battery backup. But, if you are using a newer model laptop that uses about 30 watts only, you can expect 8 hours of battery backup. Also, the battery life is more when it uses fewer watts.
What Uses The Most Wattage on a Laptop?
The answer to this question may surprise you. It’s not the screen or even the processor that uses the most energy, but the Wi-Fi and Bluetooth radios! So, if you’re looking to save some wattage consumption on your laptop, make sure to turn off these features when you’re not using them. For example, if you are working offline, you can disconnect the wifi.
Laptops that use AC power will draw more wattage than those that use battery power. This is because the AC adapter has to convert the 120-240 volts of electricity from the wall outlet into the lower voltage needed by the laptop. So, if you want to save power on your laptop, plug it into a power strip that has an ON/OFF switch. This means you can simply turn off the strip whenever you’re not using your laptop instead of having to unplug the adapter itself!
How Much Wattage Does a Laptop Use Per Hour?
On average, a modern laptop uses about 30-50 watts each hour when it is in use. So, you if want to calculate. You also have to know how long you use the laptop per day. Let’s say, 10 hours. Also, consider your laptop uses 50 watts per hour. So, per day, it will consume 500 Watts. And, 15000 Watts a month. Now, coming to cost per KW. Let’s suppose in your area, the cost per KW is 20 cents. Then, the final cost per month would be 1500 Watts * 20 /1000 = 3000/1000 = $3.
So, your laptop would use power worth $3 per month. Moreover, this calculation will vary depending on your Laptop’s power consumption per hour, electricity cost in your area, and duration of usage.
How Many Watts Does a Laptop Charger Use?
Again there is a dependency on the type of device the charger is charging. A laptop charger may use 35-120 watts depending upon which device you are charging. For example, if you are charging a power-hungry device like Acer Predator 21x, the heavy gaming charger will be there which will obviously consume more power. But, to charge the lightweight MacBook Air, it will consume less power.
There are different ways, you can find out how many watts your laptop charger use. One of the ways is to check your charger’s adapter, and you will find that wattage is written as “W” as you can see in both of these photos. I have a Dell Inspiron old version laptop, and a Macbook Air 2017, so I have captured their chargers’ photos to show you.
This is the easiest way to find your Laptop charger’s wattage. This gives you an idea of how many watts your laptop charger will use.
How Many Watts Does a Laptop When Charging?
The wattage used to charge a laptop varies depending on the model. For example, an HP laptop that is plugged into an outlet will use about 45 watts when charging. Therefore, if you are using this kind of laptop, expect it to use up to 90 watts per hour when it’s plugged in and being charged.
How Many Watts Does a Gaming Laptop Use?
Gaming laptops use more wattage because games are quite resource-intensive. A high-end gaming laptop may use up to 200 watts of power or even more, which is more than 9-10 times the amount that a regular laptop uses. So, if you’re looking to save some energy, make sure not to game on your laptop when you don’t have access to a power source like an outlet.
For example, Acer Predator 21x may use more than 300 Watts because of its power-hungry nature. It is a heavy gaming laptop, and quite resource-intensive.
How Many Watts Does a Lenovo Laptop Use?
Lenovo laptop uses wattage depending on the type of battery. For example, if your Lenovo laptop has a 4-cell lithium-ion battery, it will use around 33 watts per hour when plugged into an outlet and charged. This would be equivalent to about 3.5 watts each hour if it were running on batteries.
How Many Watts Does a Dell Laptop Use?
Normal-range Dell laptops use fewer watts and some high-end ones consume more power. Dell laptops use a range of 20-80 watts of power while in use.
How Many Watts Does an HP Laptop Use?
HP laptops tend to use more wattage than other brands, with an average of 45 watts per hour. The wattage used by the laptop will also depend on whether or not an AC adapter is being used. For example, an HP laptop that was plugged into an outlet but only using a battery would consume about 22 watts per hour. The approximation of watt usage is 20-90 as some light laptops may use less power whereas high-end gaming laptops may use more power.
Do Laptops Use More Power Than Desktops?
Laptops use comparatively less power than desktops. Since laptops are made to run on battery, it is made to be more power-efficient. Generally, a desktop has more peripherals attached to it, so in general, desktops may use more power.
But, note that this is in General only!
If you have a very high-end gaming laptop like Acer Predator 21x and have a low-end desktop, in that case, the laptop will consume more power.
So, Ultimately, whether a laptop or desktop uses more power depends on a variety of factors, such as specific models, usage patterns, power settings, type of CPU & GPU, screen size, etc.
Talking in general, laptops are more power-efficient and consume less power than desktops, but there are exceptions to this rule as well which I just explained to you in the case of using a high-end gaming laptop and a low-end desktop computer.
Concluding the whole scenario, I can say that different laptops may use different amounts of power which may depend on various factors as stated already in the article. Hope you liked this article, if you have any queries or concerns, please leave them in the comments.