Original HP Battery Replacement for EliteBook 800 G9/G10 & 1040 G9/G10 Laptops - WP03XL

NEW Genuine HP Battery for EliteBook 800 / 1040 G9 / G10 Series

This is a specific and current-generation battery for HP's premium business laptops. Here is a comprehensive breakdown with verification and purchasing guidance.

Is your HP EliteBook 800 G9, 1040 G10, or similar model struggling to hold a charge? Don’t risk your valuable work with unreliable aftermarket batteries. This NEW, Genuine HP WP03XL battery (Part M73466-005) is the exact, factory-original replacement designed by HP for your specific laptop series. With its precise 11.58V voltage and 51.3Wh capacity, it restores your EliteBook’s portable productivity to its original, all-day potential. Enjoy guaranteed compatibility, built-in safety protections, and the peace of mind that comes with using an authentic HP component—engineered to meet the high standards of your business machine.

Core Specifications & Authenticity

• Official HP Part Numbers: WP03XL (the primary "friendly" SKU) and M73466-005 (the internal manufacturing/engineering number).

• Voltage: 11.58V (Standard for 3-cell Li-ion configurations in these thin laptops).

• Capacity: 51.3Wh (Watt-hour). This is the critical spec. While you may see 4400-4600mAh, Wh is the accurate measure of total energy. 51.3Wh is correct for this model.

• Compatibility: Designed specifically for:

  • HP EliteBook 800 G9 Series (e.g., 830, 840, 860 G9)

  • HP EliteBook 800 G10 Series (e.g., 830, 840, 860 G10)

  • HP EliteBook 1040 G9 Series

  • HP EliteBook 1040 G10 Series

• Chemistry: Lithium-ion polymer (Li-Po), typical for modern slim form factors.

Product Description

   Battery Rating: 11.58V
    Battery Capacity: 4249mAh (51.3W)
    Battery Type: Li-Polymer battery
    Property: new Genuine
    Battery Color: black
    Warranty: one year

Compatible Part Number:

7933

For HP

HSTNN-1B9Y, HSTNN-LB8W, M73466-005

Fit Machine Models:

For HP

EliteBook 1040 G9 4B923AV, EliteBook 1040 G9 4B925AV, EliteBook 1040 G9 6E5C5UT, EliteBook 1040 G9 6E5C6UT, EliteBook 1040 G9 6E5C7UT, EliteBook 1040 G9 6E5C8UT, EliteBook 1040 G9 6F686EA, Elitebook 1040 G9 72G58PA, EliteBook 830 G10, EliteBook 830 G10 7Y377UT, EliteBook 830 G10 7Y382UT, EliteBook 830 G10 7Y3P2UT, EliteBook 830 G9 5Z694EA, EliteBook 830 G9 6C165UT, EliteBook 830 G9 6C1V0PA, EliteBook 830 G9 6F6J8EA, EliteBook 830 G9 6F6T0EA, EliteBook 830 G9 6F6T2EA, EliteBook 830 G9 6F6Z0EA, EliteBook 830 G9 6G9F0PA, EliteBook 830 G9 6G9F7PA, EliteBook 830 G9 6K957PA, EliteBook 830 G9 6K965PA, EliteBook 830 G9 6K966PA, EliteBook 830 G9 6K975PA, EliteBook 830 G9 6K976PA, EliteBook 830 G9 6K977PA, EliteBook 830 G9 6K981PA, EliteBook 830 G9 6Z2A8PA, EliteBook 835 G10 818H4EA, EliteBook 835 G10 86R87PA, EliteBook 835 G10 86R93PA, EliteBook 835 G10 86R96PA, EliteBook 835 G10 8F7Z5UT, EliteBook 835 G9 5P6V3EA, EliteBook 835 G9 5P727EA, EliteBook 835 G9 5Z5D7EA, EliteBook 835 G9 6F6F1EA, EliteBook 835 G9 6F6G0EA, EliteBook 835 G9 6F6G2EA, EliteBook 835 G9 6F6J0EA, EliteBook 835 G9 6G9J3PA, EliteBook 835 G9 6G9J4PA, EliteBook 835 G9 6G9J6PA, EliteBook 835 G9 6H5U2UT, EliteBook 835 G9 6T1L6EA, EliteBook 840 G10, EliteBook 840 G10 7Y359UT, EliteBook 840 G10 7Y361UT, EliteBook 840 G10 7Y366UT, EliteBook 840 G10 85D94PA, EliteBook 840 G9 5P6Y0EA, Elitebook 840 G9 5P755EA, EliteBook 840 G9 5Z6D4EA, EliteBook 840 G9 5Z6D5EA, Elitebook 840 G9 6C182UT, EliteBook 840 G9 6F6J4EA, EliteBook 840 G9 6F6J5EA, EliteBook 840 G9 6F6Q1EA, Elitebook 840 G9 6F6Z2EA, EliteBook 840 G9 6G9G3PA, EliteBook 840 G9 6G9G5PA, EliteBook 840 G9 6W3C6PA, EliteBook 840 G9 6W7N9PA, EliteBook 845 G10 7L7U0ET, EliteBook 845 G10 8F820UT, EliteBook 845 G10 8F821UT, EliteBook 845 G10 8F825UT, EliteBook 845 G10 8M133PA, EliteBook 845 G9 5P720EA, EliteBook 845 G9 5P722EA, EliteBook 845 G9 5Z5J8EA, EliteBook 845 G9 5Z6L9EA, EliteBook 845 G9 5Z6N4EA, EliteBook 845 G9 6F679EA, EliteBook 845 G9 6F6F4EA, EliteBook 845 G9 6F6G4EA, EliteBook 845 G9 6F6H6EA, EliteBook 845 G9 6F6H7EA, EliteBook 845 G9 6F6S1EA, EliteBook 845 G9 6G9K4PA, EliteBook 845 G9 6G9S2PA, EliteBook 845 G9 6G9U4PA, EliteBook 845 G9 6Q2U1PA, EliteBook 845 G9 6X2R1PA, EliteBook 845 G9 6Y5Z8EC, EliteBook 845 G9 7A4W0PA, EliteBook 845 G9 7A4W1PA, EliteBook 860 G10 6T285EA, EliteBook 860 G10 6T2B3EA, EliteBook 860 G10 6T2C3EA, EliteBook 860 G10 6T2C7EA, EliteBook 860 G10 7Y3D7UT, EliteBook 860 G10 818J8EA, EliteBook 860 G10 818K1EA, EliteBook 860 G10 818K6EA, EliteBook 860 G10 818R1EA, EliteBook 860 G10 818R5EA, EliteBook 860 G10 818T5EA, EliteBook 860 G10 89D71UT, EliteBook 860 G10 89D72UT, EliteBook 860 G10 89D76UT, EliteBook 860 G10 89D78UT, EliteBook 865 G9 6G9S4PA, EliteBook 865 G9 75V88PA, EliteBook X360 830 G9, EliteBook X360 830 G9 3F9X9PA, EliteBook X360 830 G9 5P790EA, EliteBook X360 830 G9 6C162UT, EliteBook X360 830 G9 6C163UT, EliteBook X360 830 G9 6F6K2EA, EliteBook X360 830 G9 6G9L6PA, EliteBook x360 830 G9 6K580PA, ZBook Firefly 14 G9, ZBook Firefly 14 G9 6B884EA, ZBook Firefly 14 G9 6B8A1EA, Zbook Firefly 14 G9 6N2F7UT, Zbook Firefly 14 G9 6N2J9UT, Zbook Firefly 14 G9 6Q416UT, Zbook Firefly 14 G9 6Q426UT, ZBook Firefly 14 G9 6W4S4PA, ZBook Firefly 14 G9-6B8A2EA

Why "Genuine HP" is Non-Negotiable

Using a counterfeit or non-genuine battery in a modern laptop carries significant risks:

1. Safety Hazard: Counterfeit batteries often lack proper internal protection circuits, leading to risks of overheating, swelling, and in rare cases, fire.

2. Performance & Reliability Issues: The laptop's BIOS and power management firmware are calibrated for genuine HP batteries. Non-genuine ones may cause:

   • Inaccurate battery percentage reporting.

   • Failure to charge fully or rapid, unexpected shutdowns.

   • Triggers of "Connected battery not genuine" or "Battery needs replacement" warnings that cannot be cleared.

3. Voided Warranty: Installing a non-HP battery can void the remaining warranty on your entire laptop.

4. Poor Lifespan: Knock-off batteries use inferior cells that degrade quickly, often lasting less than half the cycle life of a genuine part.

How to Verify a Genuine HP WP03XL Battery

When you receive the battery, inspect it carefully:

1. Packaging: Should be in sealed, anti-static HP-branded packaging. The box or bag will have the part number (WP03XL), barcode, and safety logos.

2. Label on the Battery Itself:

   • HP Logo & Branding: Clearly printed and not pixelated.

   • All Key Specs: Must list "11.58V" and "51.3Wh" exactly.

   • Part Numbers: Both WP03XL and M73466-005 should be present.

   • Manufacturer Info & Date Code: Look for a cleanly printed manufacturer string (e.g., "HP Inc.") and a date of manufacture.

   • Regulatory Marks: Should include CE, FCC, and other regional safety symbols. They should be sharp, not blurry.

3. Physical Build Quality:

   • The casing should be perfectly smooth with no gaps or rough edges.

   • The connector should be pristine, with gold-plated pins, and fit snugly into the laptop.

4. System Recognition:

   • Upon installation, boot into the HP BIOS (F10 at startup) and check the Power Management or Battery Health section. It should recognize the battery as a genuine HP product.

   • In Windows, the HP Support Assistant or HP PC Hardware Diagnostics should show the battery information correctly without warnings.

Recommended Purchase Channels

To guarantee authenticity, buy from these sources in order of preference:

1. HP Directly: The HP Parts Store or HP's official sales channels.

2. Authorized HP Resellers & Partners: Businesses certified to sell and service HP products.

3. Reputable IT Distributors: Major B2B distributors like Ingram Micro, Synnex, or Tech Data that supply to businesses and schools.

4. Highly-Rated Specialty Battery Stores: Some online retailers specialize in genuine laptop batteries and have established trust. Scrutinize reviews specifically mentioning "genuine" and "HP recognized."

 Red Flags for Counterfeits

• Price too good to be true: Genuine batteries have a market price. Deep discounts are a major warning sign.

• Vague or incorrect specs on the listing (e.g., listing only mAh, or wrong Wh rating).

• Stock photos only from the seller; no actual photos of the product and its label.

• Labels that feel paper-like (genuine labels are high-quality polymer) or have spelling errors.

• The seller lists it as "compatible with" rather than "genuine HP part for."

Installation & Calibration

1. Power Down: Shut down the laptop and unplug it.

2. Install: Carefully install the new battery.

3. Full Charge Cycle: Plug in the adapter and charge the battery to 100% without interruption.

4. Calibrate (Recommended): Use the battery until the system gives a low battery warning (~5-10%), then charge it back to 100% continuously. This helps the system accurately calibrate the battery gauge.

Final Recommendation

For the HP EliteBook 800/1040 G9/G10, insist on the genuine HP WP03XL (M73466-005) battery. The cost of the genuine part is an investment in the safety, performance, and longevity of your valuable laptop. The risks associated with counterfeit batteries far outweigh any upfront savings.

Always verify the physical battery's label upon receipt. If in doubt, contact HP support with the serial number of the battery to confirm its authenticity.