Using a more powerful charger than the one that came with the laptop is often a dilemma, but in most cases there is nothing to worry about. Modern devices and chargers are designed to automatically regulate the amount of energy delivered.
If a 100 W charger is connected to a 65 W laptop, the device will not “pull” all 100 W, but only as much as it needs. In other words, the excess power remains unused, so there is no risk of damage just because of the higher declared power of the charger.
100 W charger and 65 W laptop: where is the margin of safety
The key factor here is not the power expressed in watts, but the voltage and amperage. The voltage must correspond to the specification of the laptop computer, while the current must be equal to or greater than required. If the current is less, problems such as unstable operation, slower charging or overheating may occur.
In practice, this means that a 100 W charger is completely safe for a 65 W laptop, as long as it uses a suitable standard such as USB-C Power Delivery (PD), which allows automatic adjustment of power delivery.
It is important to note that not all chargers are universal. Laptop computers with special connectors often require specific adapters, and in those cases replacement with a universal charger is not possible. On the other hand, models that use USB-C connection offer much more flexibility, so the same charger can be used for other devices, including phones and tablets.
Another important aspect is the quality of the charger. It is recommended to use proven models of well-known manufacturers, because low-quality adapters have unstable output voltage or do not respect standards, which can affect the battery and electronics of the device in the long term.
So a stronger charger in itself is not a problem. What is crucial is the compatibility of standards and operating parameters. If they are compatible, using a 100 W charger on a 65 W laptop is completely safe and may even be a more practical solution for everyday use, writes BGR.