Can I Use A 90W Laptop Charger for My 65W Laptop?

Last updated: January 13, 2023 at 16:01 pm

Using the correct wattage for your laptop is essential as it guarantees your device is getting the proper power. Imagine if your laptop is receiving too little power. It may not function accordingly or may not turn at all. 

Meanwhile, if it’s getting too much power, it could cause damage to your laptop or shorten its lifespan.

Yes, you can use a 90W laptop charger to charge a 65W laptop, but it is not recommended. Why? That’s because using a charger with a higher wattage than your laptop is built for can damage the device or cause other issues.

On top of that, your laptop will only draw as much power as it needs, but a charger with a higher wattage could put unnecessary strain on your charging system and possibly cause overheating and other issues. It will help if you use a charger with the proper wattage for your device to guarantee optimal charging and prevent problems in the future. 

What Is Laptop Charger?

A laptop charger is a small device used to charge your laptop computer’s battery. It’s normally a small, portable device plugged into an electrical outlet and has a cord connecting to your laptop’s input port. 

The charger will convert the AC power from the outlet into DC power, which is utilized to charge your laptop’s battery. When your battery is completely charged, it will automatically stop charging to avoid damage to the battery.

Typically, laptops come with a charger when you purchase them. However, if the charger is damaged or lost, it can be easily replaced with a compatible charger from a third-party supplier or laptop manufacturer. 

Types Of Laptop Chargers in Wattage

There are numerous types of laptop chargers available in various wattages. Take note that your charger’s wattage depends on your laptop’s requirements. Here’s a list of the common wattages for a laptop charger. 

45W

This wattage is typical for smaller laptops or laptops with a low power requirement. 

65W

This wattage is perfect for mid-sized laptops or those with moderate power requirements. 

90W

This wattage is often used for gaming or high-performance laptops with a high-power requirement. 

120W

This is the highest wattage a laptop charger can get. This is perfect for laptops with a higher power requirement. 

Use the proper wattage charger for your device to ensure it chargers properly and does not become damaged or overheat. Using a laptop charger with a higher wattage than your device needs may cause to the battery or the laptop. 

Meanwhile, using a charger with a lower wattage may lead to insufficient power or slower charging to run the laptop. 

Can I Use a 120W Charger for My 90W Laptop? 

This would be OK if the voltage and connector were the same. It’s normally safe to use a charger with a higher wattage than what’s needed by your laptop. The charger’s wattage indicates the maximum power it can deliver to the device it’s charging.

Using a charger with a higher wattage may damage the laptop or cause issues, not to mention it may not charge the device faster than the correct wattage.  

Can I Use A 45W Charger for My 65W Laptop? 

Using 45 watts charger for the 65 watts laptop is not suggested, even if the voltage and connector are the same or compatible, 

We do not recommend utilizing a charger with a lower wattage than what’s needed for the laptop. Also, using a charger with a lower wattage than what’s needed for the device may cause the battery to charge more slowly or not charge at all. It will cause the device to run on an inappropriate supply. 

On top of that, using a charger with lower wattage than what’s needed may further strain the charger and laptop itself, causing more damage to your device. 

It’s always best to make sure your laptop can operate, and its best performance level, and the battery can charge properly. 

Is It Best to Use the Same Voltage and Wattage Charger for Your Laptop?

Yes. It’s typically best to use the same wattage charger and voltage for your laptop, which was supplied with the device or suggested by the manufacturer. Remember that using a charger with a different wattage or voltage could damage the device or cause it to function improperly. 

Laptops are built to be charged with a specific wattage or voltage, and using a charger with a different specification can cause more issues. 

For instance, using a charger with a higher wattage than what’s suggested could cause your device to overcharge, possibly damaging its battery and other crucial components. Meanwhile, using a charger with a lower wattage could cause the device to charge slower or even not charge at all!

Overall, it’s essential to use the charger supplied with your laptop or the one that your manufacturer has particularly suggested. If you need to use another charger, it’s essential to ensure it has the same wattage or voltage as the original charger.

If you are not confident about which charger to use, it’s best to consult your manufacturer or talk to a technical support representative. 

FAQs

Q: What’s the importance of using the correct wattage for your laptop?

Remember that using the correct wattage for your device is essential as it guarantees your device gets the proper power. A laptop that’s receiving too little power means it may not function properly or may not turn on at all.

Meanwhile, if it’s receiving too much power, it could cause damage to your device or, worse, shorten its lifespan. 

Using the proper wattage can also help optimize your laptop’s performance. A laptop that’s not receiving enough power means it may not be able to run at its full capacity, leading to lower performance and other issues. 

It’s also essential to refer to the manufacturer’s suggestion for the suggested wattages for your laptop’s specific model. 

Q: How many watts does a laptop charger use?

The wattage of your laptop charger can differ based on the laptop’s make and model and the charger. Nonetheless, many laptop chargers utilize between 45 watts to 180 watts. 

To identify your laptop charger’s wattage, you can check the label on the charger or refer to the manual that came with your laptop purchase.

It’s essential to remember that the charger’s wattage doesn’t necessarily reflect the device’s power draw. The laptop’s power draw is identified by a series of factors, such as the type of process, battery size, and the laptop’s workload.

Also, a laptop with a bigger battery and a stronger processor will have a higher power draw, unlike a laptop with a smaller battery and a less powerful processor. 

Q: How do you choose a charger replacement for your laptop?

To pick a replacement charger for your laptop, consider the following factors below:

· Quality – Pick a charger from a dependable brand to ensure its reliability and great quality. Remember that getting cheap and low-quality chargers could be unreliable and might even be dangerous at the same time. 

· Cable length – Consider the cable’s length and whether it’ll conveniently reach the outlet and your laptop. 

· Amperage and voltage – The amperage and voltage of your charger must match your specification laptop. Using a charger with the wrong amperage or voltage could damage the device or cause it to charge slowly or even not at all! 

· Compatibility – Ensure the charger is compatible with your laptop brand and model. You can find that information in the manual, which came with your device, or by looking it up online.

· Price – Choose your budget and look for a charger that meets your needs within that budget.

· Warranty – Go for a charger that comes with a warranty. 

Using the original charger, which came with your laptop, is suggested. That’s because it has been made particularly for your laptop and is more likely to be the ideal fit. Nonetheless, if you can’t find the original charger or if it’s no longer working, you can pick a replacement charger as long as it meets the criteria above. 

Q: How many watts does a daily laptop charger use?

The wattage of a laptop charger can vary depending on its make and model and the charger. In general, laptop chargers range from about 45 to 180 watts. Most everyday laptop chargers fall in the range of 65 watts to 90 watts.

Q: How many watts does a gamer laptop’s charger use?

Gamer laptops tend to have more powerful hardware and, therefore, may require more wattage to charge their batteries. As a result, gamer laptop chargers may have higher wattages than chargers for everyday laptops.

The wattage of a gamer laptop charger can vary depending on its make and model and the charger. Generally, gamer laptop chargers may range from about 90 to 180 watts. Some high-end gamer laptop chargers may even have up to 240 watts or more wattages.

There you have it! We hope you find this post informative and useful at the same time! 

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