How to Find Your HP Laptop Serial Number and Use It to Buy the Correct Replacement Battery？

Shopping for an HP laptop battery can be confusing because the same “HP Pavilion” or “HP Envy” name may have multiple sub-models,
battery shapes, and part numbers. The most reliable starting point is your HP laptop serial number.
In this guide, you’ll learn (1) exactly where to find it, (2) how to use it to identify the correct battery model/part number,
and (3) how to quickly locate that battery on our website and place your order.

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1) What is an HP serial number (and why it matters for battery matching)?

Your HP laptop serial number is unique to your exact device—think of it as the laptop’s fingerprint.
When you enter it into HP’s product identification or parts tools, you can usually see the parts that match your specific configuration.
That’s the easiest way to avoid ordering a battery that “almost fits” but has the wrong connector position or mounting layout.

2) How to find your HP laptop serial number (fastest methods first)

Method A: Check the product label (bottom / side / back)

For many HP laptops, the serial number (often labeled S/N) is printed on a product label on the laptop’s exterior.
Check:

• Bottom of the laptop
• Side of the device
• Back of the laptop

If your model has a removable battery or an access panel, the label may also be inside the battery compartment.

Tip: Take a clear photo of the label. You’ll often need the serial number and the product number (P/N) during parts lookup.

Method B: Use the HP System Information window (keyboard shortcut)

Many HP laptops can display a built-in system information window:

1. Press Fn + Esc together.
2. A system information window should appear.
3. Look for your serial number and product information in that window.

Method C: Use HP Support Assistant (Windows)

If HP Support Assistant is installed on your PC:

1. Open HP Support Assistant.
2. Go to My Dashboard.
3. You should see the product name, product number, and serial number there.

3) Use the serial number to identify the correct replacement battery model/part number

Once you have your serial number, you want to find at least one of these identifiers:

• Battery model code (examples: HT03XL, LK03XL, WK06XL, MU06)
• HP spare/part number (often shown as “Replace with HP Spare …”)

Option A: Use HP’s product identification / parts lookup

1. Go to HP’s product identification page and enter your serial number.
2. Open your device page and look for sections like Parts, Replacement parts, or an Illustrated parts catalog.
3. Locate the line item for Battery. Write down the spare/part number and any battery code shown.

Option B: Use HP PartSurfer (service parts lookup)

HP PartSurfer is another common way to view service parts for an HP product. Enter your serial number (or product number) and look for the battery entry,
then note the spare/part number listed for the battery.

Option C (best confirmation): Read the battery label (if you can open the bottom cover)

If you’re comfortable opening the bottom cover, the battery label usually gives the most direct answer.
Look for:

• Battery model code (often ends in XL for internal batteries)
• Replace with HP Spare number
• Voltage (V) and capacity (Wh)

Then use those identifiers to find the exact match on our site (next section).

Important safety note: Many modern HP laptop batteries are internal. If you’re not comfortable working around internal components,
consider professional installation to avoid accidental damage from static electricity or fragile connectors.

4) Find the battery on Fixing-Tools and place your order

Step 1: Open our HP battery category

Start here:

https://fixing-tools.store/laptop-parts/product-category/battery/battery-for-hp/

Step 2: Search using the battery code or HP spare/part number

The fastest way to get the correct product page is to search using the identifier you found from the serial-number lookup:

• Search by battery model code (example: HT03XL)
• Or search by HP spare/part number (example format: xxxxx-xxx)

Step 3: Verify the match on the product page

Before adding to cart, confirm:

• The battery model code and/or HP spare/part number matches your lookup result
• Voltage (V) matches the original battery label (or the parts listing)
• The product photo matches the general shape/connector layout for your battery family

Step 4: Add to cart and checkout

1. Choose quantity
2. Click Add to cart
3. Proceed to Checkout and complete payment

5) If you’re still unsure (recommended for “similar-looking” HP batteries)

If your serial number lookup shows multiple possible batteries—or if your laptop name matches many variants—send us:

• Your HP serial number and product number (P/N)
• A clear photo of the bottom label
• (Best) A photo of the battery label showing the battery code / HP spare number

Then we can help confirm which listing on our HP battery page is the correct match before you order.
You can find the Contact Us link in the site menu.

Trademark notice: HP is a trademark of HP Inc. Fixing-Tools offers compatible replacement batteries and is not affiliated with or endorsed by HP Inc.