Do all HP Pavilion laptops use the same charger?

The issue is the model of the laptop and the model of the chargers. If the voltage is different or if the watts of the charger is less than the laptop needs yes it can cause problems. Also an ill-fitting plug is a problem. So really you only want to use the “right” adapter for your laptop and not a near-miss.

Can I use any AC adapter for my laptop?

An AC adapter converts the higher voltage received from an outlet to the proper amount the laptop needs. Laptops can share power cords so long as the adapter’s wattage and connector tip is correct and compatible for each laptop you wish to use it with.

How do I know what AC adapter to buy for my laptop?

Choosing a Replacement Adapter:

1. Find your laptop’s model number. You may find this number located on a sticker on the bottom or side of your laptop computer.
2. Find your wattage requirements.
3. Find a compatible laptop adapter.

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

Yes, that’s right. Wattage is a measurement of how much power a supply can provide. If your computer requires 45w, but your power supply can provide 65w, you will be fine.

Can I use a 5V 3a charger with a 5V 2a device?

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.

How do I know what AC adapter to get?

Check the following when selecting an AC adapter:

1. Make sure the output of the adapter is equal to the input of the device.
2. The adapter output is greater or equal to the devices rated mAh or A.
3. Make sure the adapter plug has the correct polarity and smoothly fits into your device.

How do I know which AC adapter?

You might find both the voltage and the current elsewhere on the device, on the bottom or inside a battery compartment cover, or in the manual. Again, look for the polarity by either noting a + or – symbol or the polarity diagram. Remember: the input of the device should be the same as the output of the adapter.

Can you charge a laptop with USB?

Long story short, you can’t charge your laptop with USB Type A, but you can charge your laptop with USB-C.

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.