How to Charge an HP Laptop Without Your Original Charger

What to do when your HP charger is lost, broken, or unavailable

You can charge an HP laptop without its original charger using a compatible third-party charger, a USB-C power adapter if your model supports it, or alternative power sources like a power bank designed for laptops. The method depends on your specific HP model, the connector type it uses, and what charging equipment you have access to. Most HP laptops made in the last five years support at least one alternative charging method.

The fastest solution is usually finding a replacement charger that matches your laptop's power requirements — the voltage and wattage printed on your original charger or in your laptop's settings. If you cannot locate the exact charger, USB-C charging works on many newer HP models, and some older models can charge through their docking port or via a universal laptop charger.

Key Takeaways

Check your laptop's power requirements (voltage and wattage) before buying any replacement charger — using the wrong wattage can damage the battery or motherboard.
Most HP laptops from 2019 onward support USB-C charging, which means you can use phone chargers, tablet chargers, or portable power banks rated for laptops.
Universal laptop chargers with interchangeable tips work with most HP models and cost less than official replacements, but verify the connector type matches your laptop first.
Docking stations, USB-C hubs, and power banks designed for laptops are alternatives if your charger port is damaged or you need to charge away from an outlet.

Finding your laptop's power specifications

Before you buy or use any charger, you need to know what your HP laptop requires. Look at the bottom or side of your laptop for a label listing voltage (usually 19.5V, 20V, or 65W) and wattage. You can also find this in Windows by opening Settings, selecting System, then About, and looking for the device specifications — though this does not always show power requirements.

The most reliable way is to check your original charger itself. The specifications are printed on a label on the charger brick or cable. Write down the voltage (V) and wattage (W) — for example, "19.5V 4.62A" or "65W". If you no longer have the charger, search your laptop model number on HP's support website or contact HP support with your serial number to confirm the exact specifications.

Using a charger with the wrong voltage can permanently damage your laptop's battery or charging circuit. A charger with too little wattage will charge slowly or not at all. A charger with too much wattage may overheat the battery. Matching the voltage exactly is non-negotiable; wattage can be equal or slightly higher, but never lower.

USB-C charging for newer HP laptops

If your HP laptop has a USB-C port and was made after 2019, it likely supports USB-C charging. This is the fastest alternative because you may already own a USB-C charger — from a phone, tablet, or other device. Check your laptop's manual or HP's support page for your model to confirm USB-C charging is supported before you try it.

Not all USB-C chargers work with laptops. You need a charger rated for at least 45W for smaller laptops or 65W to 100W for larger models. Most phone chargers are 18W to 30W and will charge your laptop very slowly or not at all. Look for chargers labeled "USB-C Power Delivery" or "USB-C PD" with a wattage rating of 45W or higher. Many newer laptop chargers, phone chargers for high-end devices, and portable power banks now meet this standard.

If you use a USB-C charger that is too low-wattage, your laptop will charge slowly while powered off, or not charge at all while in use. This is not dangerous — it straightforward means the charger is underpowered for your device. You can test a USB-C charger you already own to see if it works before buying a new one.

Third-party and universal laptop chargers

Universal laptop chargers with interchangeable connector tips are sold at electronics retailers and online. These chargers come with multiple tips to fit different laptop brands and models. Before buying one, confirm that it includes a tip matching your HP's connector type and that the voltage and wattage match your laptop's requirements.

Third-party chargers made specifically for HP are also available and often cost less than official HP replacements. Search for your exact HP model number plus "charger" to find compatible options. Read the product description carefully to confirm the voltage, wattage, and connector type match. Check customer reviews for that specific model to see if other HP owners report it working reliably.

When ordering online, verify the return policy in case the charger does not fit your laptop's port. Some universal chargers have loose-fitting tips that can damage the charging port over time. A charger that fits snugly without forcing is what you want.

Charging through docking stations and hubs

If your HP laptop has a docking port (common on business models like the EliteBook or ProBook series), you can charge through a compatible docking station. The docking station connects to your laptop's docking connector and to a power outlet. This method works even if your main charging port is damaged, though docking stations are more expensive than chargers and are usually only worth buying if you use one regularly.

Some USB-C hubs designed for laptops include pass-through charging, meaning they can charge your laptop while also providing additional ports for monitors, keyboards, or storage. These are useful if you need both charging and extra connectivity, but they require a separate USB-C power adapter rated for your laptop's wattage.

Portable power banks for laptop charging

Laptop-sized portable power banks can charge an HP laptop if they support USB-C Power Delivery at the required wattage. These are useful for charging away from an outlet, though they are heavier and more expensive than phone power banks. A power bank needs to be rated for at least 45W to 65W depending on your laptop model, and it needs to have enough capacity to meaningfully extend your battery life — typically 20,000 mAh or higher.

Power banks work best as a backup charging method rather than a primary charger. They charge slowly compared to a wall outlet and may not charge your laptop while you are using it if the power bank's wattage is too low. Check the power bank's specifications before buying to confirm it supports USB-C Power Delivery and matches your laptop's voltage and wattage requirements.

What not to do when charging without a charger

Do not use a charger with the wrong voltage, even if the connector fits. A charger with too high voltage can cause the battery to overheat, swell, or fail permanently. Do not force a charger into your laptop's port — if it does not fit smoothly, it is the wrong connector type and forcing it can damage the port.

Avoid leaving your laptop plugged into an underpowered charger for extended periods. If a charger is too low-wattage, your laptop's battery will drain while you use it even though it is plugged in, which stresses the battery and shortens its lifespan. If you must use a low-wattage charger temporarily, shut down your laptop while charging.

Do not buy chargers from unknown sellers or chargers with no wattage or voltage label. Counterfeit chargers can overheat, fail suddenly, or damage your laptop. Stick to chargers from HP directly, established electronics retailers, or third-party manufacturers with good reviews from other HP owners.

Frequently Asked Questions

Can I charge my HP laptop with a phone charger?

Only if your laptop has USB-C charging and your phone charger is rated for at least 45W USB-C Power Delivery. Most phone chargers are too low-wattage and will charge your laptop very slowly or not at all. Check your laptop's manual to confirm it supports USB-C charging first.

What happens if I use the wrong wattage charger?

Too low: your laptop charges slowly or not at all. Too high: your battery may overheat or fail permanently. Always match the voltage exactly. Wattage can be equal or slightly higher, but never lower than what your laptop requires.

Is it safe to use a third-party charger instead of the original HP charger?

Yes, if the third-party charger matches your laptop's voltage and wattage specifications. Many third-party chargers are reliable and cost less than official replacements. Buy from established retailers and check reviews from other HP owners to reduce the risk of getting a defective or counterfeit charger.

How long does it take to charge with a lower-wattage charger?

Charging time increases significantly with lower wattage. A 45W charger on a laptop that normally uses 65W may take twice as long to fully charge. If the charger is too low-wattage, your laptop may not charge at all while in use.

Can I damage my laptop by trying different chargers?

Testing a charger briefly is safe as long as the voltage matches. If the charger is too low-wattage, nothing happens — it straightforward will not charge effectively. Unplug when ready if you notice the charger or laptop getting hot, as this indicates a voltage mismatch or defective charger.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.