Your laptop charger is one of the most important parts of your laptop because, without it, you won’t be able to charge your laptop properly or even charge it at all. So, in relation to that, you need to make sure that you have a functioning laptop charger that corresponds to your laptop’s power needs. But what if you don’t have a 65-watt charger for your laptop but there is a 90-watt charger that you can use? Can you actually use a 90-watt charger on a 65-watt laptop battery?
You can use a 90-watt charger on a 65-watt laptop battery. In fact, using that charger will actually make your laptop’s battery charge faster. However, you need to make sure that the charger doesn’t come with a higher voltage than what your laptop can handle, or else this will burn through your motherboard.
So, while your laptop charger does indeed come with a corresponding wattage that is perfect for the wattage that your battery needs to recharge, you can still use chargers with a higher wattage. Still, there is a caveat to this because you need to make sure that your laptop can handle the voltage and is actually compatible with the charger. Elsewise, you might end up damaging your laptop in the process.
Can you use a 90-watt charger on a 65-watt laptop battery?
One of the most important components of any laptop is its charger because the charger is the one that is supplying the power that the laptop needs to keep its battery charged or to allow the laptop to function even without the battery attached to the laptop. This is why it is important for anyone to always have his laptop battery around as this allows anyone to keep on working or playing while using the laptop.
In relation to the charger, what you should know is that each charger comes with its own charger with a corresponding wattage. What the wattage means is that this is what the charger’s power adapter can supply to the laptop. Meanwhile, the laptop itself will be the one that is going to draw out the power that the power adapter can supply.
So, for example, if you have a laptop battery with 65 watts, it needs a laptop charger that can supply 65 watts of power so that it can charge properly. Anything lower than 65 may still be able to supply power to the laptop but it might not be nearly enough to recharge the battery while you are using the laptop. In most cases, people tend to leave their laptops off while using a charger that has a lower wattage than what the battery requires.
In that case, if you have a 65-watt laptop battery, what happens if you are using something higher such as a laptop charger with 90 watts. Can you actually use the 90-watt charger for your laptop? After all, there will be times when you lose or break your charger and the only one left is a charger with a higher wattage just like a 90-watt charger. What happens if you use that charger to charge your laptop?
The good news is that, yes, you can safely use a 90-watt charger on a laptop battery that requires 65 watts of power to charge well. In that case, you don’t have to worry about possibly damaging your laptop in the process of using a laptop charger with a higher wattage than what your laptop’s battery requires.
So, the reason why you can use a 90-watt charger to charge a laptop with a lower wattage just like 65 watts is that, again, the 90 watts that the charger can handle means that the power adapter can potentially deliver up to 90 watts. Just by plugging in a 90-watt charger to a 65-watt charger, that doesn’t necessarily mean that you are immediately delivering 90 watts (although there are some cases where a higher wattage charger can charge the lower wattage battery faster). It only means that the 90-watt charger is capable of giving the 65-watt laptop battery the wattage it requires.
Again, the power adapter is not the one that is going to dictate what it will give to the laptop. The wattage on the charger or the adapter only indicates what it can give and not what it will give. Meanwhile, it is up to the laptop to draw out the power that it needs to charge the laptop.
A good metaphor here is when you have $90 but a person is trying to ask $65 from you. So, just because you do have $90 it doesn’t necessarily mean that you are going to give more than what the person is asking from you. Instead, you will only be giving the $65 that the person is asking from you and not the entire $90. You may be able to supply more but that doesn’t mean that you should give more than what the person is asking.
The same concept applies to a laptop charger with 90 watts when plugged into a laptop battery that requires 65 watts. Your battery will only ask 65 watts from the power adapter even though the latter can actually give up to 90 watts. This is why using the 90-watt charger on your 65-watt laptop battery is safe.
What are the risks involved in using a 90-watt charger on a 65-watt laptop battery?
However, there is still a catch that you need to be wary of when you are using a laptop battery charger with a higher wattage than what your laptop battery needs. In this case, you still have to look at some underlying factors when you are using a 90-watt charger on a 65-watt laptop battery.
So, the one thing that you should look at is whether or not they have the same voltage. That’s because if the 90-watt charger has a higher voltage than the 65-watt laptop battery, you could potentially end up frying the motherboard because the voltage will be too powerful for your laptop to handle.
Of course, you also need to make sure that the 90-watt charger fits the charging port that your laptop comes with. But, then again, just because it fits it doesn’t mean that it is completely safe to use. You should always look at the voltage because of how you might end up potentially damaging your laptop if you use a charger with a higher voltage than what your laptop can handle.