Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com
WELCOME5
BatteryWeb

HP Elitebook 865 G9 WP06XL Replacement Battery 11.58V 6300mAh

Up to 19% off
New arrival
From $88.99 USD $109.99
Shipping calculated at checkout.
Fits HP Elitebook 865 G9 6H724UT and replaces OEM part numbers WP06XL, HSTNN-IB9Z, M64306-171, M73470-005.
11.58V at 6300mAh delivers 72.95Wh total capacity for full-day operation without external power on this 14-inch ultrabook.
Connector slots into the battery bay with a single locking tab on the left side facing the hinge; orientation matches stock orientation.
We ran 5 full charge cycles on a test unit; the BMS negotiated voltage correctly with the BIOS and showed no cutoff anomalies.
After installation, discharge fully to shutdown then charge uninterrupted to 100% without opening the laptop — this resets the BIOS battery learn cycle and clears false health warnings that appear after every cell swap.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
WECARE5
Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.

✦

We ship your order same day if you buy it before 4 PM EST.

Warranty

Let customers speak for us

from 11 reviews

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.
MGE UPS Systems Pulsar EX 1500RT Compatible Replacement Battery By Bright Way

Excellent substitute for the original, appearing to be the perfect replacement.

Alberto J.
APC SMART-UPS RT SURTA3000RMXL3U UPS High Performance Replacement Battery Set

It was what i was looking for. Support is fast

Jaswal
WAHEGURUG - RADHASWAMI

Fast service

Mark Casias
BatteryWeb

Perfect fit

Mark Casias
STX20L-BS Battery for Harley Softail FLS FLST 1991-2017 High Performance

Works Perfectly!!

Ben Benson
Invacare 220 Scooter High Performance Medical Replacement Battery Set

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

11.58V

Amp

6300mAh

HP EliteBook 865 G9 / ZBook Firefly 16 G9 — 11.58V Li-Polymer Replacement Battery (WP06XL)

This is an 11.58V, 6300mAh (72.95Wh) Li-Polymer battery that replaces the OEM WP06XL cell. It fits the HP EliteBook 865 G9 6H724UT, ZBook Firefly 16 G9 6B897EA, ZBook Firefly 16 G9 6Q411UT, EliteBook 860 G9 6K687PA, and over 90 additional HP business laptop configurations sharing the same battery slot and connector pinout.

  • EliteBook 860/865 G9 and ZBook Firefly 16 G9 compatibility: These models share the same three-cell Li-Polymer pack format, 11.58V nominal rail, and SMBus BMS handshake. One cell covers the whole group because HP standardised the connector and communication protocol across this generation of 14–16 inch business ultrabooks.
  • Bench tested on actual hardware: We ran this cell on an EliteBook 865 G9 and confirmed the BMS completed a full charge cycle without tripping an over-voltage fault. Charge acceptance held consistent across multiple cycles and the SMBus communication registered without error codes.
  • BIOS battery learn cycle after installation: After fitting this cell, run the laptop on battery until it hibernates at the low-voltage cutoff, then charge uninterrupted to 100%. This forces the BIOS to complete one learn cycle against the new cell chemistry and clears the inaccurate health warning that appears after every cell swap on HP EliteBook G9 hardware.

Why the EliteBook 865 G9 reports poor battery health immediately after a cell swap

The HP BIOS stores battery health data in EEPROM and compares the new cell's reported capacity against the degraded profile it recorded from the old cell. A fresh cell with full capacity reads as mismatched, so the BIOS flags it as unknown or unhealthy on first boot. This is not a fault with the replacement cell. Running one complete discharge-to-hibernate followed by an uninterrupted charge to 100% resets the learn cycle. After two to three full cycles the BIOS recalibrates and the health warning clears.

Laptop shuts down at 20–30% charge shown on the gauge

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual discharge curve. The percentage readout is still mapped to the old cell's degraded profile, so the displayed figure and the real cell voltage fall out of sync. Under full CPU plus display load, the actual cell voltage hits the BMS cutoff threshold while the gauge still shows 20–30%. Run two full discharge-to-hibernate and charge-to-100% cycles to let the fuel gauge IC relearn the voltage curve. After calibration the shutdown should align with readings below 5%.

Compatible Models

Elitebook 865 G9 6H724UT ZBook Firefly 16 G9-6B897EA Zbook Firefly 16 G9 6Q411UT EliteBook 860 G9 6K687PA Elitebook 860 G9 6Y520PA EliteBook 865 G9 6F6H5EA EliteBook 865 G9 6F6F9EA ZBook Firefly 16 G9 6B886EA EliteBook 860 G9 6Q1E0PA EliteBook 860 G9 6F614EA Elitebook 860 G9 6G9J8PA Elitebook 865 G9 6G9L0PA EliteBook 865 G9 6Y602EC ZBook Firefly 16 G9 6B8D7EA EliteBook 860 G9 6F6K6EA EliteBook 860 G9 6K661PA Elitebook 860 G9 6G9H7PA EliteBook 865 G9 6Q2Z3PA EliteBook 865 G9 6F6F7EA EliteBook 865 G9 EliteBook 860 G9 6K670PA EliteBook 860 G9 5Z6D1EA EliteBook 865 G9 75V88PA Elitebook 865 G9 6J177UT EliteBook 865 G9 6F6R7EA ZBook Firefly 16 G9 6X1F1PA EliteBook 860 G9 6F6K7EA EliteBook 860 G9 6C189UT Elitebook 860 G9 6G9J1PA EliteBook 865 G9 6Q301PA EliteBook 865 G9 6F6F8EA Zbook Firefly 16 G9 6Q4X4UT EliteBook 860 G9 6K662PA EliteBook 860 G9 6T1R1EA EliteBook 865 G9 6G9K9PA Elitebook 865 G9 6H5U6UT EliteBook 865 G9 6F6Q9EA ZBook Firefly 16 G9 6X1F2PA EliteBook 860 G9 6F6K4EA EliteBook 860 G9 6C1Z7UT Elitebook 860 G9 6G9H1PA EliteBook 865 G9 6G9P8PA Elitebook 865 G9 6H5G6UT Zbook Firefly 16 G9 6N2G4UT EliteBook 860 G9 6K669PA Elitebook 860 G9 6G9J0PA EliteBook 865 G9 6F6H4EA EliteBook 865 G9 5P723EA Zbook Firefly 16 G9 6V2U8PA EliteBook 860 G9 6K695PA EliteBook 860 G9 6T123EA Elitebook 860 G9 6G9H8PA Elitebook 865 G9 6G9K7PA EliteBook 865 G9 6Y604EC Zbook Firefly 16 G9 6V1U5PA Zbook Firefly 16 G9 6N2H0UT EliteBook 860 G9 6K685PA Elitebook 860 G9 6G9H9PA EliteBook 865 G9 6Q2V1PA EliteBook 865 G9 6F6F6EA Zbook Firefly 16 G9 525B8EA EliteBook 860 G9 6K684PA EliteBook 860 G9 5Z6B6EA Elitebook 860 G9 6G8T3PA Elitebook 865 G9 6G9P9PA EliteBook 865 G9 6F6G8EA ZBook Firefly 16 G9 6X1F3PA EliteBook 860 G9 6F6K5EA EliteBook 860 G9 6C190UT Elitebook 860 G9 6G9H3PA EliteBook 865 G9 6Q300PA EliteBook 865 G9 5P675EA Zbook Firefly 16 G9 6Q413UT EliteBook 860 G9 6K688PA EliteBook 860 G9 5Z6B5EA Elitebook 865 G9 6H5F8UT Elitebook 865 G9 6H5F6UT EliteBook 865 G9 6F6R8EA ZBook Firefly 16 G9 6B896EA EliteBook 860 G9 6F6K8EA EliteBook 860 G9 6C188UT Elitebook 860 G9 6G9H2PA EliteBook 865 G9 6Q2Z9PA Zbook Firefly 16 G9 6Q412UT EliteBook 860 G9 6K686PA EliteBook 860 G9 5Z6B1EA EliteBook 865 G9 6F6H3EA Elitebook 865 G9 5P725EA EliteBook 865 G9 5P724EA ZBook Firefly 16 G9 6X1F0PA EliteBook 860 G9 6K672PA EliteBook 860 G9 6T125EA Elitebook 860 G9 6G9H4PA Elitebook 865 G9 6G9S5PA

Replaces Part Numbers

WP06XL HSTNN-IB9Z M64306-171 M73470-005

Technical Specifications

Voltage11.58V
Amp Hours6300mAh
Capacity6300mAh
Rate72.95Wh
Net Weight357g /12.59 oz
Gross Weight617g /21.76 oz
Approximate Weight617g /21.76 oz
Dimension 303.30 x 104.00 x 6.40mm

Product Highlights

  • Brand: HP
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The HP BIOS is showing "unknown battery" or 0% right after I installed the new cell — is the battery dead?

No. The BIOS reads EEPROM data stored by the previous cell and flags any new cell as unknown until it completes a learn cycle. Power down, let the laptop run on battery until it hibernates, then plug in and charge to 100% without interruption. After that full cycle the BIOS registers the new cell correctly and the unknown status clears.

My EliteBook 865 G9 shows a different Wh rating in system info than what the battery lists — why don't the numbers match?

The Wh figure shown in HP system diagnostics pulls from the EEPROM on the original cell, not from a live measurement of the new one. The replacement cell is rated at 72.95Wh, but the system will continue displaying the old cell's stored value until the BIOS completes at least one full learn cycle. Run a full discharge to hibernate followed by a full charge to 100% and the reported Wh figure will update to reflect the actual installed cell.

New battery won't charge above 80% on my HP EliteBook — is the cell faulty?

This is almost always a BIOS-controlled charge limit, not a cell fault. HP EliteBook G9 models ship with a battery charge protection setting that caps charging at 80% to reduce long-term cell stress during docked or plugged-in use. Go to BIOS setup (F10 at boot), navigate to Power > Battery Health Manager, and switch from "Maximize Battery Health" to "Let HP manage my battery charging" or "Full Charge." Save and reboot — the cell will then charge to 100%.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Related Products

HP Elitebook 865 G9 6H724UT Replacement Battery, 11.58V, 6300mAh, Li-Polymer 1

Engineered for Performance. Built to Last.

Check out our top-rated selection of reliable products built to last. We offer high-quality options that deliver consistent performance for all your needs.

Our Collections