Quick Answer: 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 90 watt charger on a 130 watt laptop?

Then, if the 90-W adapter is of the same brand as the original 130-W adapter, and all are for the same laptop brand and have interchangeable barrel plug, the laptop must be able to detect the adapter properties, and scale down its consumption, and likely limit internal charging rate and limit any turbo modes the laptop …

Can you charge a laptop with a higher watt charger?

The short answer is yes you can use a laptop charger with a higher wattage, however, there are some caveats. The wattage rating of a laptop charger is a maximum rating which means that the charger is capable of providing power up to the output wattage rating and or course anything in between.

What’s the difference between 45w and 60w MacBook charger?

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). You should not use a 45W with the MacBook Pro 13 since that is lower than its 60W requirement.

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?

The short answer is yes you can use a laptop charger with a higher wattage, however, there are some caveats. The wattage rating of a laptop charger is a maximum rating which means that the charger is capable of providing power up to the output wattage rating and or course anything in between.

Does higher wattage charge faster?

Watts, then, are the product of volts and amps — volts (V) times amps (A) equals watts (W). Greater current and higher voltages charge batteries faster, but there’s a limit to what they can take. … Greater current and higher voltages charge batteries faster, but there’s a limit to what they can take.

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.

Do all HP Chargers work for all HP laptops?

Are all HP laptop chargers the same? HP laptops do not have one single compatible laptop charger. Before attempting to purchase a compatible replacement laptop charger for your HP, it is worth checking with the manufacturer for compatibility with your PC.

Can I use a 19.5 V charger on a 18.5 V laptop?

Your laptop takes 18.5V and the new charger is 19.5V. … Generally speaking, a 5% variance in voltage up or down is acceptable when in computer power supplies. Plugging in an adapter with more than a 5% voltage difference and you are running the risk of damaging or destroying the laptop.

Can I use a 45w adapter on a 65w laptop?

Can I use a 45W charger instead of a 65W charger for my HP laptop? … 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 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.

What is the difference between 65 Watt and 90 Watt AC adapter?

Yes, a 90 watt charger can charge quickly when compared with a 65 watt charger. … The one main difference between both of them is the current it can source while charging at the same voltage. Li-ion cells which are inside a laptop battery can charge quickly if charged at higher currents.

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 45w charger instead of 60w?

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

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.

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. … It will be too powerful and burn right through the port and motherboard eventually, frying your laptop.