Quick Answer: Can I Use A 65 Watt Charger On A 90 Watt Laptop?

Can a bad charger ruin a laptop?


An incorrect laptop charger can damage your motherboard – On many occasions, faulty laptop power supply has caused irreparable electrical damage to laptops.

It usually happens when you rely on a duplicate or universal charger..

What is the difference between 45w and 65w charger?

You can definitely use the 65W charger. The brick will be a little larger and heavier and it will charge your battery a bit faster. The plug and the voltage are the same so it works with your laptop fine.

Can I use a 90 watt charger on a 120 watt laptop?

When the current is less than the rated value, the output voltage is higher. In the case of Laptops the regulation is probably in the Laptop and if that is the case then no problem using the larger (120 Watt) as the current (output power) will be the same for either the 90, or 120 Watt brick.

Is it bad to use a higher watt charger?

This means that you can quite safely use a charger with a higher wattage (or amps) rating as the laptop will only ever draw the amount of power required at the time. … A 30W or a 45W charger can not supply sufficient power for your laptops needs which means you could damage the laptop and/or the charger.

What happens if you use the wrong power adapter?

Voltage too high – If the adapter has a higher voltage, but the current is the same, then the device will likely shut itself off when it detects an overvoltage. If it doesn’t, then it may run hotter than normal, which can shorten the life of the device or cause immediate damage.

Is it OK to charge laptop with different charger?

The short answer is; No. You should never intentionally use another laptop’s charger on your laptop. It doesn’t matter if you’re in a pinch or if your battery is about to die. Plugging a different charger that isn’t meant for your specific model will not lead to anything good.

Can I use a lower wattage charger for my laptop?

Originally Answered: What is the consequence of using a lower-watt power adapter with a laptop? Your PC’s power demand is kind of like your need for light in a room. You may be just fine with that 45W or 60W light for some kinds of work. … You may be just fine with that 45W or 60W light for some kinds of work.

How many watts does a laptop use when charging?

How many watts do common appliances use?ApplianceWattsLaptop20-50WDesktop computer80-150WTablet (charge)10WBroadband router7-10W12 more rows

Does higher wattage mean faster charging?

But to reiterate the point from Wired’s article, it’s a myth that you will reduce phone battery life or blow up your phone by charging at a higher wattage than its standard charger offers. Newer, higher wattage chargers simply speed up the charging process.

Can I use a 45w charger instead of a 65w charger for my HP laptop?

If the voltages match, the 45W should just charge a bit slower than the 65W. I would refrain from running anything heavy though, as it may be more load than the adapter can handle and it will drain the battery as well.

Can I use MagSafe 85w instead of 45w?

You can safely use the 85W adapter on any Mac, it will only draw as much power as it needs. The 45W adapter from the MacBook Air may just about manage to power your MacBook Pro but it won’t charge it. It will not damage your Mac, but you may notice the battery may still deplete when using it.

Can I use a 19v charger for a 20v laptop?

20v can be used for 19v as long as the current rating of 20v is the same or higher but only temporarily. Best to charge the battery and the then unplug and run the laptop, notebook etc on their batteries themselves to ensure the correct input to the circuitory. Runng 20v for 19v directly is not advisable.

Do I need a 60w or 85w charger?

You can charge using a higher wattage than is permitted, but you should not use a lower wattage. For instance, the MacBook Pro 13 inch uses a 60W MagSafe, but you can use an 85W MagSafe to charge or power it (although it will not charge any faster).

Is 60w enough to charge MacBook Pro?

In general, 27W is enough to maintain or slightly recharge the battery when the computer is not under load and 60W is enough to recharge the battery even when the computer is under moderate load. For more details, see the diagrams below and check out our test results when recharging a MacBook Pro.

Can I use 65w charger instead of 130w?

If its original charger is a 130W adapter, then no, a 65W wouldn’t work. It might work entirely by coincidence (the plugs are the same and the computer somehow can operate at a much lower wattage, but that is like jumping into a dark room and trusting on blind luck that i’s not a spiked pit at the bottom.

Can I use a 45 watt charger on a 65 watt laptop?

Yes. Wattage is a measurement of how much power a supply CAN generate, or how much your device DOES consume. The wattage of your power supply is a rating of the maximum power that can be drawn down from it; if your computer requires 45w but your supply can provide 65w, you will be fine.

Can I use a 90 watt charger on a 130 watt laptop?

Generally the answer is yes, but it won’t supply enough power to charge the battery while you’re using your laptop. This will probably invalidate your warranty and could cause damage to your laptop, but the changes for that are small.

Can I use a 45 watt charger on a 90 watt laptop?

Yes you can use a 90 watt charger on a 45 watt laptop as long as everything like the connection and stuff matches . … The laptop has limits to how much charge the battery will accept at any time . The problem would be if those were reversed like a 45 watt charger on a 90 watt laptop .

Can I use 60w charger instead of 85w?

Yes, with a caveat. The 85W adapter can be used inconsequentially with both models. It will provide ample power to both the MacBook Pro and MacBook, and will not damage the latter despite a higher-than-necessary wattage. … Note, however, that the 85W adapter will not charge a MacBook any faster than the 60W adapter.

Can I use a 60w charger instead of 45w?

You can always use an adapter that has a higher power rating than is required as long as the voltage rating is the same. … Power adapters for Intel-based Apple notebooks are available in 45W, 60W, and 85W varieties.

Can I use a 19v charger on a 19.5 V laptop?

Voltage: 19.5V and 19V is a relatively small voltage difference. It is most probably safe to use as long as: The current of the charger is the same or higher than that of the laptop. … The output power (Amps * Volts) of the original and the new charger differs in 0.6 Watts, the 19.5V charger having more output power.