Question: Can I Use A 45w Charger Instead Of 65w?

Does the wattage of a charger matter?

Watts are supplied “on demand” to the battery that’s being charged, so even if you’re over the device’s limit, it doesn’t cause problems.

A laptop will typically call for watts between 45 and 100.

Not all chargers will list the watts, but if the amps and voltage match, you’re usually in the clear..

Can I use a 130w adapter on a 65w laptop?

The laptop will only draw the current it needs so you will not fry anything. You can use an adapter with more amps and the same voltage and the same physical connection without any problems. It will even charge the battery faster.

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 45w charger instead of 60w?

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.

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.

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.

How do I know what charger I need for my laptop?

Searching for “run” or “run.exe” than running “dxdiag” should bring up a Windows with 4+ panels about your computer. The model number should be listed there. Looking up “[manufacturer] [model] charger” should bring up ones that work. For most laptops a 65W charger will be enough.

Are all HP Chargers Universal?

In most cases, the current line of HP computers will share the same AC adapter (charger). There are a few exceptions to this rule but generally HP laptops will share chargers with other HP laptops that were introduced in the same time frame.

What happens if you use the wrong charger?

Using a charger with the wrong voltage rating can potentially damage your laptop. This is typically caused by too high voltage. But using a charger with too high current won’t damage your laptop. Using a charger with too low current rating might fry the power supply, but not the laptop.

Can you use a 90w charger on a 65w?

Yes, you can use a 90 watt ac adapter, a.k.a power charger, for your 65 watt-compatible laptop. It will actually charge your battery faster. But, and this is a big but, you cannot use a 19 Volt ac adapter on an 18.5 Volt-laptop.

Can I use a 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.

How many watts do you need to charge a laptop?

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

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

Yes: technically it can be used, but you need a higher amount of power (watt). if the adapter is 19V 6A, it might start the PC but you will have strange side effects.

Does higher wattage charge faster?

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 adapter on a 65w laptop?

Using a charger with the incorrect watt usage can shorten the battery life of the laptop when it’s not plugged in it’s good idea to keep using a 65w charger for the laptop. … If the 45W has more Amps then the 65W then it will work better.

Can I use a 45w charger instead of 90w?

If the output voltage is the same, you can use a 90W charger on a 45W laptop BUT cannot use a 45W charger on a 90W laptop. On the condition of same voltage, laptops and other devices will never overpowered. The amps you saw is the maximum one adapter is capable of, not the rated current.

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

You should not use a 90 Watt brick if you need a 120 Watt brick. While I talked about charging currents, The max output requirement is based on Charging current required by a depleted battery pak + Operating current required by the laptop under full load.

What happens if amps are too high?

A higher voltage than a device is designed for will most likely blow up some components, but amperage is derived from how much current is actually drawn, based on the device’s resistance, so having “too much” is not a problem and will do no harm.

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.

What’s the difference between 90w and 65w AC Adapter?

The 90W or 65W can be used on either of the 6cell or 9cell battery optioned Dell’s. However, the main difference is charge time. The 90w will charge your battery much faster than the 65w charger.

Can a charger be too powerful?

Yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed. Since the voltage is held constant (5V), the only factor that determines current draw is the load (another term for resistance) the device places on the charger.