Your HP charger has stopped working or you want a spare for the office, and the shop asks whether you need the blue pin, the round pin or USB-C. This post is for HP Pavilion, Victus, ProBook, EliteBook and 250 series owners who want to buy the right one the first time. You will learn how to tell the plug types apart, how to read the label, and why a wrong adapter charges slowly or not at all.
Which charger fits my HP laptop?
Short answer: the one with the same plug type, the same voltage and an equal or higher wattage than the original. Read the label on your old adapter and the rating text on the laptop, then compare the plug. If your laptop has a USB-C charging port, the charger must also supply the power your laptop needs. When unsure, ask a technician to check the model.
What are the HP charger plug types?
The blue tip is an HP style, but it does not mean any blue-tipped charger fits. The size of the plug and the centre pin must match your port, and the voltage and wattage must suit your model. Your laptop's specification page on HP's support site shows what your model uses.
How do I read the charger label?
- Find the output line. It reads something like Output: 19.5V and a current in A. Ignore the input line, which shows the mains supply.
- Check the voltage (V). It must match the original. A different voltage is not safe.
- Work out the wattage (W). Multiply volts by amps. As a worked example only, a 19.5V adapter rated 3.33A gives about 65W (19.5 x 3.33).
- Compare with the laptop. Look at the sticker under the laptop, or search the model on HP's support site.
- Note the plug. Write down the plug type and size.
Take your old adapter, or a clear photo of its label, to the shop. Do not guess the voltage or force a plug into a port that does not fit.
Why does a wrong adapter charge slowly?
The laptop only receives the power the adapter can give. If the wattage is lower than what the laptop needs, the battery fills slowly, or the percentage falls even while plugged in during heavy work. Some laptops may read an identification signal from the adapter and charge slowly, or show a message, if they do not recognise it; this varies by model. A lower wattage than the original is the one to avoid. A higher wattage with the same voltage and plug is usually accepted, because the laptop takes only what it needs.
For USB-C, the charger and laptop agree on power using a standard called USB Power Delivery. A low-rated phone charger may power a thin laptop slowly or not at all. Check that the charger lists a wattage at least equal to your original.
Genuine or compatible chargers?
A charger made by HP for your model is built to match it. A compatible charger from another maker can work well if it has the right plug, voltage and wattage and a reliable build, but poorly made ones can run hot or damage the port. Buy from a seller who accepts returns, and ask them to confirm the fit before you pay. Our post on counterfeit charger damage shows what a poor adapter can do.
Voltage dips and charger care in India
Voltage swings and power cuts can occur in homes and offices, and cheap multi-plugs add heat. A surge-protected extension board helps. Pull the plug from the wall before you pull it from the laptop, never twist the cable around the brick, and keep the adapter in the open, not under a pillow or a pile of papers. Monsoon dampness can also corrode a plug, so keep it dry.
When to get help
Ask a technician if the correct charger still does not charge the laptop, the plug feels loose or hot, the charging light flickers, or the laptop cuts off when the cable moves. The cause may be the charging port, not the charger. Read about our HP charger service, HP charging port repair and the HP hub. For doorstep service in Hyderabad, see our Secunderabad HP service page, or send the laptop by courier. Our post on a charger that is not working also helps. ₹149 doorstep visit fee, waived when you approve laptop repair with us.
A note from the LRW Engineer Team
Before you buy a new adapter, test the old one on another HP laptop with the same plug if you can. If it works there, the problem is probably your laptop's port or battery, not the charger. This simple test can save you buying the wrong part.