Hey there! As a supplier of Laptop Power Adapters, I get a ton of questions from customers, and one that pops up pretty often is, "Can I use a power adapter with a lower wattage for my laptop?" It's a great question, and today, I'm gonna break it down for you.
First off, let's talk about what wattage means. Wattage is a measure of how much power an adapter can supply. Think of it like a water pipe – the higher the wattage, the bigger the pipe, and the more water (or power in this case) it can carry. When you're looking at your laptop, it has a specific power requirement, which is usually listed in the user manual or on a label on the bottom of the laptop.
Now, if you try to use a power adapter with a lower wattage than what your laptop needs, there are a few things that can happen.
1. Your Laptop Might Not Charge
The most obvious issue is that your laptop might not charge at all. If the adapter can't supply enough power, the battery won't get the juice it needs to recharge. It's like trying to fill up a big bucket with a tiny straw – it's just not gonna work. For example, if your laptop requires a 100W Type - C Power Adapter to charge properly, using a 65W adapter might not be enough. The laptop might recognize that there isn't enough power and just keep running on the battery instead of charging it.
2. Slow Charging
Even if your laptop does start charging with a lower - wattage adapter, it's gonna take forever. The charging process will be much slower because the adapter can only supply a limited amount of power. So, instead of getting a full charge in an hour or two, it could take several hours. This can be a real pain, especially if you're in a hurry and need your laptop charged up quickly.
3. Overheating and Damage
Using a lower - wattage adapter can also put a lot of stress on the adapter itself. Since it's being pushed to supply more power than it's designed for, it can overheat. Overheating can not only damage the adapter but also pose a safety risk. In some cases, it could even cause damage to your laptop's battery or other internal components.
But hey, there are some situations where using a lower - wattage adapter might work.
1. Idle or Light Usage
If your laptop is just sitting there, doing nothing or running very light tasks like web browsing or word processing, a lower - wattage adapter might be able to keep up. In these situations, the laptop doesn't need as much power, so the adapter can supply enough to keep the battery charged or at least prevent it from draining.
2. Temporary Solution
If you're in a bind and don't have the right adapter with you, using a lower - wattage adapter for a short period of time might be okay. Just don't make it a long - term solution. For example, if you're traveling and only have a 65W USB Type - C Laptop Charger with you, you can use it to keep your laptop running until you can get the correct adapter.
Now, let's talk about TS - W100A0960 Charging Laptop with USB C Phone Charger. Some newer laptops support charging via USB - C, and you might be tempted to use your phone charger. But again, it all comes down to the wattage. Most phone chargers have a relatively low wattage, so they might not be able to charge your laptop effectively or at all.

So, what's the bottom line? It's generally not a good idea to use a power adapter with a lower wattage for your laptop. It can lead to all sorts of problems, from slow charging to damage to your equipment. It's always best to use the adapter that's specifically designed for your laptop.
As a Laptop Power Adapter supplier, I've seen firsthand the importance of using the right adapter. That's why we offer a wide range of high - quality adapters with different wattages to meet the needs of all types of laptops. Whether you need a 65W, 100W, or even higher - wattage adapter, we've got you covered.
If you're in the market for a new laptop power adapter or have any questions about which adapter is right for your laptop, don't hesitate to reach out. We're here to help you make the right choice and ensure that your laptop gets the power it needs to keep running smoothly.
Contact us for more information and let's start the purchasing negotiation. We're looking forward to working with you!
References:
- Laptop user manuals
- Technical specifications of power adapters






