Will a mix of chargers with different power burn out your laptop?


In the notebook market in the past two years, the blue factory has been beaten by the red factory, and the graphics card has been upgraded as usual. The CPU, GPU, RAM, and SSD are all being upgraded as usual, and changes in the peripheral configuration of the notebook are also surging.

For example, biometric identification, multi-speaker, touch screen, high brush, and the interface brings more profound changes. Previously, only Intel's CPU supported the Thunderbolt protocol. This year, AMD also caught up, and the CPU supported the USB4 interface.

These high-standard transmission protocols all need to cooperate with the USB-C interface to exert their strength. Therefore, in the past two years, notebooks have begun to be equipped with a full-featured USB-C interface, which includes the charging function. It is always better to open less holes.

Is the included USB-C plug charger for one machine? Will mixing it burn out my laptop? Let's start with these notebooks.

What is the PD charging protocol?

Just open the details page of a notebook that supports USB-C interface charging, and you will see a similar introduction, which supports 100W PD charging. Friends who are familiar with us are definitely not unfamiliar with the PD protocol. Here is a little introduction to those who are not familiar with it.

PD is currently the most common fast charging protocol standard, supporting voltage 5V-20V, current 1.5A-5A, etc., with a maximum fast charging power of 20V5A and 100W. The full name of USB PD is USB Power Delivery. It is a fast charging protocol standard launched by the authoritative organization USB-IF. It aims to unify the technical specifications of fast charging, and has been supported by various technology giants. The USB PD fast charging protocol is based on USB-C. The charging interface is developed, so the two complement each other and are quickly popularized in the market.

Laptop Standard Charger

PD fast charging is a charging protocol, and USB-C is a physical interface. Together, the two have created a laptop that can be charged with a PD charger. At present, notebook computers are mainly divided into two camps: Windows and Mac. Among them, Windows computers currently have products from Lenovo, Huawei and other brands equipped with USB-C interfaces and support PD fast charging. In theory, as long as the use supports PD fast charging The charger can charge the notebook.

The power is different, will mixing the chargers burn out the notebook?  -Charging head net

On the Mac side, Apple has equipped its laptops with a USB-C interface and supports the PD fast charging protocol as early as 2015, and has developed a series of PD fast charging around PD fast charging in the following years. charger.

So the question is, can a laptop's original PD charger be able to charge other laptops normally?

Test Section

Can they be recharged with each other? Theoretically, it is possible, but in the end, the actual test data shall prevail.

MacBook Notebook

The power is different, will mixing the chargers burn out the notebook?  -Charging head net

Apple launched the new 16-inch MacBook Pro in 2021, which is also the first time to be equipped with a 140W gallium nitride charger that supports the PD3.1 fast charging protocol, which can provide up to 140W of charging power when charging the MacBook Pro 16 2021.

As for this 140W PD gallium nitride charger, can it be used to charge other devices? The charging head network has also evaluated it. In fact, it can be seen that Apple's 140W gallium nitride charger can not only charge other laptops, but also charge tablets and mobile phones.


Looking at the MacBook Pro 16 2021 in turn, the charging head network has measured dozens of chargers with power ranging from 20W-130W, all of which can charge the notebook normally.

Windows Notebook

Since Apple first equipped its MacBook with a USB PD fast charging system in 2015, all its laptops are now equipped with a USB-C interface and support PD fast charging, and Windows notebooks from the other camp have also begun to popularize PD fast charging on a large scale. Charge.

The Lenovo Xiaoxin Pro 14 2021 obtained by the charging head network is equipped with 2 USB-C ports, both of which support the Thunderbolt 4 transmission protocol and support PD fast charging. A 65W integrated PD charger is included in the package. As can be seen from the above picture, the Lenovo Xiaoxin Pro 14 2021 is charged with the original 65W PD charger, and the power is around 60W.

In addition, the charging head network also uses dozens of PD chargers of different powers to charge the Lenovo Xiaoxin Pro 14. It can be seen that almost all of them can charge the laptop normally.


Xiaomi released the Mi Notebook Pro 15.6″ GTX version in August 2018. It is equipped with the eighth-generation Core processor, GTX 1050 MAX-Q discrete graphics card, and has powerful performance. The powerful performance is destined to have high-power energy support. According to the past The experience is that it is equipped with a brick-like power adapter. Fortunately, this notebook of Xiaomi supports USB-C power supply, and Xiaomi also equipped it with a portable USB-C PD charger with a power of 90W.

When using the Xiaomi 90W PD charger to charge the Xiaomi notebook Air 13.3-inch quad-core enhanced version, the KM001C tester shows that the voltage is 20.08V, the current is 2.65A, and the power is 53.4W, and the PD fast charge is successfully turned on.

The power is different, will mixing the chargers burn out the notebook?  -Charging head net

It can provide PD fast charging service for notebooks, and fast charging for mobile power supplies. When charging the mobile power supply in the above picture, the power is 19.9V 4.44A 88.42W, which has reached the maximum output power of the charger.

Dell is one of the largest notebook brands in the world. Dell has developed a variety of corresponding chargers for different notebooks. The charging head network has disassembled 30W, 45W, 65W, 90W, 130W and other Dell PD chargers. High power, support for universal PD fast charging and other advantages.

The power is different, will mixing the chargers burn out the notebook?  -Charging head net

This charger is also a PD charger developed by Dell for its notebook products. It supports an output power of up to 130W and is equipped with an integrated USB-C extension cable.

Needless to say, this charger is compatible with the fast charging of Dell notebooks, and the 130W power can also meet the fast charging needs of most office notebooks.

The power is different, will mixing the chargers burn out the notebook?  -Charging head net

In addition to Dell laptops, the charging head network also tested the fast charging support for other laptops. The actual measurement has good fast charging compatibility for Lenovo, Huawei, and Apple, and can trigger fast charging normally.

This Huawei MateBook also supports USB PD fast charging, equipped with a USB-C fast charging interface, and a 65W PD charger is included in the package.

The power is different, will mixing the chargers burn out the notebook?  -Charging head net

Using Huawei 65W PD charger to charge Huawei MateBook can be charged naturally, the power is about 60W, and it is in PD fast charging state.

Can Huawei MateBook 13 be charged with other PD chargers? The answer is yes. Use Apple's 61W PD charger to charge the notebook with a power of 20.30V 2.81A 57.1W.


Whether the notebook can be charged with a non-original PD charger, and whether the original notebook charger can charge other devices, if you are an old player, you don’t need to think too much. The test content is more for some notebook PD fast charging novices. The user presented, of course, there is no problem in the actual measurement.

It is now 2022, and more and more notebooks are equipped with USB-C ports and support PD fast charging. The USB IF organization has adjusted the power limit of USB PD fast charging to 240W, which means that even some 100W+ or even 200W+ It is also very hopeful to use the PD charger for the game notebook.

More and more notebooks are equipped with PD chargers as standard, and notebooks supporting PD fast charging also bring new vitality to the third-party accessories market. For users, there are more choices to buy some PD chargers as spares. It has a very positive effect on both the industry as a whole and consumers.

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