Question: Does The Wattage Of A Charger Matter?

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

The 120 Watt should last longer and be less prone to failure when used at a lower power output and my choice – However the 90 watt should also work fine.

You should not use a 90 Watt brick if you need a 120 Watt brick..

What happens if amps are too high?

When output current needs to be higher, it will stop acting as an ideal voltage source and will start showing imperfections such as voltage drop, overheating, current limit and so on. … So, given a fixed voltage and the fixed resistance you can calculate amperage.

Does higher wattage mean faster charging?

Newer, higher wattage chargers simply speed up the charging process.

Can I use a 65w charger instead of 85w?

You will not harm anything using the incorrect adapter. The charging circuitry in Intel Macs is very sophisticated and won’t let anything bad happen. Using the higher-wattage adapter with a low-power-requirement notebook will work. The computer will only draw as much power from the adapter as it needs.

Can I use 20v charger on 19v laptop?

Originally Answered: Will 20V 2A charger damage my laptop, which has 19V 3.42A rating? Yes, that one will over volt your motherboard and battery charging circuit. You need a 19 volt charger with the right connector. … A 90 watt, 19 volt and 4.73 watt will give more charge and will not damage your laptop.

Can I use a charger with higher wattage?

Yes, Your laptop has been designed to draw up to a certain amount of power when running at full power. … 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.

Can I use a 90 watt charger on a 65 watt laptop?

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.

Can you use a 90w charger on a 45w?

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 85w charger instead of 60w?

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 65w charger for my phone?

Of course you can. If the phone supports USB Power Delivery protocol, the phone and charger will mutually agree on a voltage both can support to optimize charging speed.

Is 5 watts fast charging?

Fast Charging is a term frequently used to market chargers and devices capable of charging faster than the current charging standard (5 Watts). Though there are multiple technologies that enable these fast charging speeds, there is no industry-standard language around them.

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. … Laptops usually don’t draw the full power from the charger even when in use and being charged at the same time.

Can the wrong charger ruin your laptop?

Using a charger with the wrong voltage rating can potentially damage your laptop. This is typically caused by too high voltage. … Using a charger with too low current rating might fry the power supply, but not the laptop. As the difference in voltage in this case is small, it should be OK.

Can I use a 45w charger instead of 85w?

You can use an 85w charger with a laptop that requires 65w or 45w but you can not safely go the other way by using a 45w or 65w charger with a laptop that requires 85w.

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).

What does the wattage on a charger mean?

Wattage is the overall measurement of power that flows through your charger, so a higher cell phone charger wattage means that your device will charge faster. If you’re shopping for a new charger and the wattage isn’t listed, you can also calculate it with the formula: watts = volts x amps.

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.

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

here’s the definitive answer: YES, you can use a higher rated power adapter with your MBA (or whatever) with no ill effect. … in the reverse case, if you use too low a wattage adapter (e.g. 45W one on a MB Pro), there won’t be enough current to charge the battery, although you can run it off AC power while plugged in.

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

As long as it is the same voltage and connector type you can use a higher watt adapter. It will charge the battery a bit faster but other than and the size of the brick you will see no difference. The laptop will only draw the current it needs while running.

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

Originally Answered: Will it be okay to use 90W adapter in dell laptop [new battery] (requires 130W or more) for using my laptop until replacement arrives? Generally the answer is yes, but it won’t supply enough power to charge the battery while you’re using your laptop.

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

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.