Jul 28, 2016 A power supply rated for 130 watts can provide up to 130 watts. It can easily provide anything between zero and 130 watts of power; it just can’t provide more than that. Your laptop will require a certain number of watts. The power supply you use must provide at least that many, and it’s OK if it provides more. 1300 Watts and up: Computer Parts: Micro Center Computer Parts Choose a store to see products at your local Micro Center Advanced Filters. Now that WhatsApp has been downloaded and installed to your computer, you can set it up. In order to set up WhatsApp, you need to have an internet connection and a mobile phone with a working telephone number. This is so that you can receive the SMS from WhatsApp and enter the information into WhatsApp on your Windows 10 PC with BlueStacks. Provided to YouTube by TuneCore Death Battle: Watts up Danger (From the Rooster Teeth Series) JT Music, Omega Sparx & SWATS Death Battle: Watts up Danger (. As battery life is always a concern with a laptop, I was particularly curious to see which parts of the laptop draw the most power. So I ran a few tests with my trusty kill-a-watt on my Dell Inspiron 300m. It's an ultaportable 2 pound laptop of late 2003 vintage with the following specs: Intel Pentium M 1.2GHz low voltage processor.
- Maximum Power Rating
- Real-Time Monitor of Power Consumption
Before you gauge the power efficiency of your laptop, it is common to ask how many watts is a laptop.
The wattage rating of the laptop differs significantly from model to model. A simple laptop with an Atom processor will have a minimum power rating; whereas, a gaming laptop can be substantially demanding.
Although it is important to know how many watts is a laptop, it is important to realize that there is a difference between power rating and consumption.
Let us recap this concept a bit.
Maximum Power Rating
The easiest way to answer how many watts is a laptop is to look at its maximum power rating.
Depending on the make, model, type, and size of the laptop, the maximum power rating can range from 20W to 250W. For some models, it could be even higher. However, if you are comparing this with a high-end PC, it is still significantly low.
Finding out the Power Rating of your laptop is quite simple. The power rating is always mentioned on the power adapter. It is either explicitly mentioned in watts, or the rating of Voltage and Amperes are provided.
Note that power adapters have different Voltage (V) and Amperage (A) ratings for input and output.To learn the power rating of your laptop, you need to take note of the “output” ratings. Once you have output voltage and amperes rating, you simply multiply them both to get the power rating. (Voltage x Amperes = Power)
For example, my laptop which has a Core i5 processor along with 8 GB of RAM, 15.6″ Touchscreen, 500 GB HDD, and no graphics card has the rating of 19.5 Volts and 2.31 Amperes. This equates to 45 Watts.As another example, have a look at this:
Whichever laptop this adapter belongs to has got to be a high-end one. The laptop has an output voltage of 19.5 V and amperage of 10.3 A. As a result; it has a maximum power rating of 200W. This is quite significant.
What Does This Mean?
The maximum power rating of 200W implies that all the components combined will consume 200 watts in an hour if used on maximum potential.
Most of the times, the laptop never reaches its maximum power rating. For example, in idle states or when doing low-key work, the laptop would be consuming half as much power or even less.
Watts (Rated Power) vs. Watt-hour (Consumption)
Instead of asking how many watts is a laptop, it is more feasible to ask how much is your energy consumption rate.
This is electricity 101.
Many people tend to get confused between the idea of Watts vs Watt-hour.
The former implies the maximum power the laptop can consume in an hour, the later means how the laptop is being used.
A watt-hour is the amount of energy used in a particular time period, whereas rated power is the instantaneous rate at which energy is being consumed. Energy consumption is represented in kilowatt hours (Wh). The rated power is measured in watts (W).
The difference between the two parameters can be explained through an example. Suppose one 65 watt laptop is operated for 10 hours in a day for high demanding tasks. It would consume 650 watt-hours (Wh), assuming it works on maximum potential. Its demand would be 65 watts throughout the time period it is kept on.
Now if you operate the same 65 Watt laptop, but for low demanding tasks. It would consume must less power.
Therefore, even if you have a 250 Watt gaming laptop, it would be consuming less than half its rated power if you are using it for tasks like word processing, etc.
In short, your laptop’s energy bill will be reflective of how you use it.
Real-Time Monitor of Power Consumption
The only way to know how much power your laptop is consuming is to have a real-time power consumption monitoring interface. There are two ways that this can be achieved. You can either install software or get hardware that plugs into the wall socket.
With a Software
Using a software does not guarantee precise measurements. Furthermore, it is tough to calibrate the software on the machines if you do not know the exact hardware components.
One of the best software for measuring the power consumption of a computer is Microsoft Joulemeter. This is a pretty simple desktop app that you can install for free. Unfortunately, calibrating it could prove to be a hassle. Although on laptops the process is relatively easy and automated, the data it provides is only an estimate.
Helpful tool to estimate the power draw of system and components if you have no idea what that might be. Needs more input to be more accurate. – Cnet.com
To get a precise measurement of your laptop’s power consumption, you need to get an electricity monitor.
With Electricity Usage Monitor Device
Electricity usage monitors are simple and inexpensive devices that plug into your wall socket to measure the power consumption of any devices they are connected to. They can provide you with accurate real-time power consumption data.
You can not only check the power consumption of your laptop at idle state but also in various scenarios.
P4400 by P3 is an example of one f the best electricity usage monitors in the market.
You can use this small, compact, and inexpensive device to measure consumption of all of your household appliances. It goes beyond just measuring the consumption. It can also calculate the expenses by the day, week, month, or even a year.
A typical programming laptop harbors an Intel Core i5, along with 8 GB of RAM and an SSD. Given this configuration, you can expect the maximum power rating of the laptop to be in the range of 50W. If you get a smaller screened laptop i.e. 13.3″ or 14″ laptops, the power rating would be even lower.
If you get a laptop for game development, then you will be looking at a laptop that is not too different from a high-end gaming laptop. This would have a power rating of 200 – 250 Watts typically.
Conclusion
So to wrap-up the answer to the question: how many watts is a laptop, it depends on your perspective.
If you are asking the question about the maximum power rating, then it depends on the size and the hardware configuration. However, if you are asking the question about the power consumption, it depends on your use.
The maximum power rating can easily be figured out by having a look at the laptops spec sheet or the back side of the power adapter.
The answer to the question about consumption is a bit tricky. The most precise way to know the power consumption is to get an electricity usage monitor.
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Power adapters for Mac notebooks are available in 29W, 30W, 45W, 60W, 61W, 85W, 87W, and 96W varieties. You should use the appropriate wattage power adapter for your Mac notebook. You can use a compatible higher wattage power adapter without issue, but it won't make your computer charge faster or operate differently. If you use a power adapter that is lower in wattage than the adapter that came with your Mac, it won't provide enough power to your computer.
Mac notebooks that charge via USB-C come with an Apple USB-C Power Adapter with detachable AC plug (or 'duckhead'), and a USB-C Charge Cable.
Mac notebooks that charge via MagSafe come with an AC adapter with MagSafe connector and detachable AC plug, and an AC cable.
The images below show the style of adapter that comes with each MacBook, MacBook Pro, and MacBook Air. If you're not sure which model Mac you have, use these articles:
USB-C
Apple 29W or 30W USB-C Power Adapter and USB-C Charge Cable
- MacBook models introduced in 2015 or later
Apple 30W USB-C Power Adapter and USB-C Charge Cable
- MacBook Air models introduced in 2018 or later
Apple 61W USB-C Power Adapter and USB-C Charge Cable
- 13-inch MacBook Pro models introduced in 2016 or later
Apple 87W USB-C Power Adapter and USB-C Charge Cable
- 15-inch MacBook Pro models introduced in 2016 or later
Apple 96W USB-C Power Adapter and USB-C Charge Cable
- 16-inch MacBook Pro models introduced in 2019
Make sure you're using the correct USB-C charge cable
For the best charging experience, you should use the USB-C charge cable that comes with your Mac notebook. If you use a higher wattage USB-C cable, your Mac will still charge normally. USB-C cables rated for 29W or 30W will work with any USB-C power adapter, but won't provide enough power when connected to a power adapter that is more than 61W, such as the 96W USB-C Power Adapter.
You can verify that you're using the correct version of the Apple USB-C Charge Cable with your Mac notebook and its USB-C AC Adapter. The cable's serial number is printed on its external housing, next to the words 'Designed by Apple in California. Assembled in China.'
- If the first three characters of the serial number are C4M or FL4, the cable is for use with an Apple USB-C Power Adapter up to 61W.
- If the first three characters of the serial number are DLC, CTC, FTL, or G0J, the cable is for use with an Apple USB-C Power Adapter up to 100W.
- If the cable says 'Designed by Apple in California. Assembled in China' but has no serial number, you might be eligible for a replacement USB-C charge cable.
MagSafe 2
85W MagSafe power adapter with MagSafe 2 style connector
- 15-inch MacBook Pro models introduced in 2012 through 2015
60W MagSafe power adapter with MagSafe 2 style connector
- 13-inch MacBook Pro models introduced in 2012 through 2015
45W MagSafe power adapter with MagSafe 2 style connector
- MacBook Air models introduced in 2012 through 2017
About the MagSafe to MagSafe 2 Converter
If you have an older MagSafe adapter, you can use it with newer Mac computers that have MagSafe 2 ports using a MagSafe to MagSafe 2 Converter (shown).
MagSafe 'L' and 'T' shaped adapters
60W MagSafe power adapter with 'T' style connector
- 13-inch MacBook Pro models introduced in 2009
- MacBook models introduced in 2006 through mid 2009
60W MagSafe power adapter with 'L' style connector
- 13-inch MacBook Pro models introduced in 2010 through 2012
- MacBook models introduced in late 2009 through 2010
85W MagSafe power adapter with 'T' style connector
- 15-inch MacBook Pro models introduced in 2006 through 2009
- 17-inch MacBook Pro models introduced in 2006 through 2009
85W MagSafe power adapter with 'L' style connector
Watts Up Download For Laptop
- 15-inch MacBook Pro models introduced in 2010 through 2012
- 17-inch MacBook Pro models introduced in 2010 through 2011
45W MagSafe power adapter with 'L' style connector
Whatsapp For Laptop Online
- 13-inch MacBook Air models introduced in 2008 through 2011*
- 11-inch MacBook Air models introduced in 2010 through 2011
* Adapters that shipped with the MacBook Air (Original), MacBook Air (Late 2008), and MacBook Air (Mid 2009) are not recommended for use with MacBook Air (Late 2010) models. When possible, use your computer's original adapter or a newer adapter.
Learn more
Whatsapp For Laptop 32 Bit
You can get extra or replacement adapters with AC cord and plug at the Apple Online Store, an Apple Reseller, or an Apple Store.
Laptop Watts Usage
A replacement adapter might not be the same size, color, shape, or wattage as the original adapter that came with your computer. But it should power and charge your Mac like the adapter that originally came with your computer.
If you need help using your MagSafe adapter, see Apple Portables: Troubleshooting power adapters.
If you're looking for a PowerPC-based power adapter, see PowerPC-based Apple Portables: Identifying the right power adapter and power cord.