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How to choose the right laptop power adapter?

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.03.13
As the preferred choice for daily office work, the battery life of laptops is very important. However, most original power adapters have a large size and are not convenient to carry when going out. Therefore, choosing a compact power adapter is very important. Below, we will introduce the current laptop power adapter products on the market from the aspects of power, interface, etc., and also provide some suggestions for your purchase, hoping to help you choose suitable products.

Classification

1. Power

(1) 65W and below

The output power is within 65W, mostly 65W, mainly used to power lightweight laptops. Their hardware configuration is relatively low, and the power consumption of each hardware is not high, so 65W is sufficient. And this power adapter has a small size and high portability.



(2) 66-120W

Mainly used for high-performance lightweight laptops, mostly with standard voltage processors, power consumption can reach 35, 45, or even higher. Some models are also equipped with entry-level independent displays, resulting in higher overall power consumption. Therefore, the power adapter equipped is generally around 100W.



(3) Above 120W

Commonly seen in gaming laptops, with standard voltage processors equipped with different models of independent displays, dual baking power consumption can reach over 170W. According to different hardware configurations, the overall power consumption fluctuates greatly, and there are models in the market that are close to kilowatts.



(1) Type-C

This interface is a flat design that does not distinguish between front and back, and is generally used as a power interface for lightweight laptops with a power consumption of less than 100W. The advantage is that it is conducive to designing the body thinner. Most Type-C interfaces also have functions such as video output, USB connection, and audio output.



(2) I/O interface

Commonly seen in gaming laptops with high power consumption, it was also a commonly used charging port in early laptops. The advantage is that the circular interface is convenient to use and has high charging power.




(3) Square interface

The charging interface used by some manufacturers is generally not applicable.




(4) Magnetic suction interface

Connected to the charging port of the laptop through magnetic suction, the contact connection delivers electrical energy, which is safer than conventional interface connections. If accidentally pulled, the cable can be immediately disconnected to prevent the laptop from falling, and the safety factor is higher than other interfaces.



Purchasing Tips

1. Interface adaptation

Before purchasing a laptop power adapter, be sure to check the type and size of your laptop power interface to avoid not being able to plug it in after purchase.

2. Power adaptation

Priority should be given to checking the charging power of your laptop. High or low power of the power adapter can affect the battery life of your laptop and may also damage its internal components.

3. Voltage adaptation

The output voltage of a power adapter with the same power may vary. It is important to purchase a power adapter with the same output voltage as the input voltage of a laptop.

4. Best original factory

It is best to purchase a laptop power adapter from the original factory, which ensures quality control and various hardware parameters. If the original factory does not sell, priority should be given to large brand products, but attention should be paid to interface, power, voltage and other data.

Key knowledge

1. Power adaptive

Most current chargers support multiple output voltages and currents, and can automatically switch to the optimal output voltage and current after connecting the device, saving a lot of trouble.

2. Multi device usage

With the popularization of Type-C interfaces and the increase in power of mobile phone chargers, many people will use mobile phone chargers to charge laptops. Before charging, it is best to check whether the voltage and current output of the charger are compatible with the laptop. If not, it is best not to use it for charging.

3. GaN material

The power adapter made of GaN material can maintain power while being smaller in size and more portable, making it a popular product in recent years. But there are few laptops that come standard, so friends who frequently travel or work outside can consider purchasing them.

Summary

The core points of selecting a power adapter are voltage, current, power, and the type of interface. If these points are met, it will basically not cause harm to the laptop. As for which product to choose from, it depends on personal preferences for brand, design, and portability.
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