Unlock the Mystery: Are Laptop Chargers Universal?

Laptop chargers are not interchangeable.

The charger that comes with the laptop differs and frequently does not work with other laptops.

Because of the range that most laptop chargers cover, laptop input power needs are almost universal. On the other hand, the charger's output power needs do vary.

It is because different laptop models have varying voltage and amperage needs.

The power supply ports are also different. HP laptops, for example, have a different port than Dell laptops. As a result, you cannot use an HP laptop charger with a Dell laptop; it will not fit.

There are, however, "universal" laptop chargers available.

Is it Possible to Share Power Cords Between Laptops?

All laptops require a specific amount of volts and amps to function correctly, and anything less or higher than that quantity may be harmful to the laptop's fragile internal circuits. An AC adapter converts the greater voltage obtained from an outlet to the amount required by the laptops. Laptops can share power cables as long as the adapter's wattage and connection tip are correct and compatible with each one.

Power Needs:

Because not all laptops require the same amount of volts, any adapter you intend to share across numerous laptops should supply the appropriate wattage range to power the machines. To identify the ideal adapter for your needs, search for the needed input characteristics, which are printed as volts and amps on the lower side of laptops. Multiply these two values to obtain the wattage you require from your adaptor. Laptops that demand 19V and 3.16A, for example, would need an adapter with a minimum power rating of 60W. Although a higher wattage adapter, such as a 70W or even a 90W adapter, can be used, adapters that are less than the minimum wattage necessary cannot be used.

Connection Tips: 

Although the energy output rating is a significant concern when shopping for a laptop adapter, the correct wattage is useless if the connection tip does not match your specific machine. Laptop adapter jacks come in diverse sizes and shapes, ranging from little round connections to big oval ports. Even two laptops from the same manufacturer may have different adapter connectors. Never push an adapter connection into an adapter port, even if it appears to be the correct size and shape since this might damage the adapter jack and the cable connector.

Look for Polarity:

The polarity of both the adapter and your laptop, like the connection tip, must match. It is often represented by a diagram consisting of three circles, a plus and a negative sign on each extremity, and a C-shaped circle in the center.

The adapter is considered to have positive polarity if the plus (+) sign is on the right and the negative (-) is on the left. In the opposite instance, vice versa.

Examine the polarity of the laptop by looking attentively at the region around the charging jack. You'll see the identical three-circle diagram all over the place.

Now, whenever you plan to get a new charger, due to whatsoever reason, keep in mind those polarity sequences. Because in case of any conflict between the polarities (with the new charger), you can face issues ranging from a single fuse breakdown to other severe damages.

Universal Charger: 

Once you've identified the minimum wattage required for your laptops, you may reduce the issues connected with the various connection tips by purchasing a universal adapter. Universal chargers include a base cable with interchangeable tips, allowing you to charge numerous computers with a single connection by simply inserting the appropriate adaptor connector tip. Although there may not be a tip for every adapter connection, especially for older laptop models with larger adapters, most universal adapters will include various tips for your usage.

Choosing a compatible universal charger for your laptop: 

If you need a new laptop charger and are considering a universal charger, be sure it is compatible with your laptop. It is crucial not just for efficacy but also for safety. Using the wrong charger might result in electric shock and fire.

In a nutshell, it's critical to read charger product specifications and understand your input and output power needs for your laptop.

Universal laptop chargers often identify the devices that they support, but as previously said, it's always a good idea to double-check.

Check that it meets your input and output voltage requirements and your Hz, amperage, and port requirements.

You'll almost certainly have a 50/60Hz supply, and universal chargers will always accommodate that. Check the input supply in your location (you may look it up online) to see if the universal charger supports it. 

Because laptops use DC power, there is no need to determine what Hz your laptops require. The charger will convert the alternating current to a direct current, eliminating the frequency (Hz).

For safety purposes, it's more critical to ensure that the charger's amperage fits the amp needs of your laptop. You should be able to find your laptop's amp needs on the underside, or you may need to look online.

It's also a good idea to double-check the wattage. If you've previously verified the voltage and amps, this isn't necessary, but it's worth doing just in case the product details don't line up.

The wattage needs of your laptops should be indicated on the lower side, but you may need to investigate online. The most common laptop power is 65W.

Finally, ensure that the universal charger has an appropriate power port connection. The product description should explicitly explain whether or not the product is compatible.


If you have an adapter cord that should function with your various laptops but doesn't, it might be due to a software conflict or a defective adapter. First, use a voltmeter to ensure that the adapter delivers the required quantity of energy. Test the adapter on each laptop with and without the batteries attached. It is necessary because the battery may block the computer from perceiving the adaptor when connected in some circumstances. If required, update your operating system and BIOS to allow your laptop to see the new hardware. Check that the adapter jack is not loose or cracked, which would result in a weak connection.

However, universal chargers are not 100% universal, but they cover enough laptop models for developers to feel confident in making a claim. 



Sold Out