WK04XL HP VICTUS 16 Replacement Battery 15.4V 4500mAh
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WK04XL HP VICTUS 16 Replacement Battery 15.4V 4500mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
⚠️ 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.
WK04XL HP VICTUS 16 Replacement Battery 15.4V 4500mAh - is backordered and will ship as soon as it is back in stock.
Voltage
15.4V
Amp
4500mAh
HP VICTUS 16 / OMEN 16 Series — 15.4V Li-Polymer Replacement Battery (WK04XL)
This is a 15.4V, 4500mAh (69.3Wh) Li-Polymer replacement battery for the HP VICTUS 16 and OMEN 16 laptop series. It fits the VICTUS 16-d0009ua, VICTUS 15-FA0021NS, OMEN 16-N0066AX, OMEN 16-b1001nw, and over 229 additional models. OEM part numbers include WK04XL, HSTNN-IB9V, HSTNN-OB2C, and M38822-171.
- VICTUS 16 and OMEN 16 platform fit: These models share a common 15.4V four-cell Li-Polymer architecture, identical connector pinout, and the same BMS handshake protocol — which is why one part number spans both product lines across multiple regional SKUs.
- Bench tested on actual hardware: We ran this cell through charge-discharge cycles on VICTUS 16 hardware. The BMS negotiated correctly, charge termination triggered at full capacity, and no overcurrent fault codes appeared during high-draw GPU stress testing.
- Post-install calibration on VICTUS 16: After fitting this battery, run one full discharge down to hibernate-cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate "poor health" or "unknown battery" warning that routinely appears after any cell swap on this platform.
Why the VICTUS 16 BIOS reports poor health immediately after a battery swap
The HP VICTUS 16 stores battery health data in EEPROM on the original cell. When a new cell is installed, the BIOS reads stale EEPROM values that don't match the new chemistry and flags the battery as degraded or unknown. This is a data mismatch, not a fault with the replacement cell. Running a full discharge-to-hibernate followed by an uninterrupted charge to 100% triggers the BIOS learn cycle and overwrites the stale EEPROM reference. After one or two completed cycles, HP Battery Check and Windows battery report should reflect accurate health status.
VICTUS 16 shutting down at 20–30% charge shown on screen
This shutdown pattern happens when the fuel gauge IC still holds calibration data from the old, degraded cell. Under combined CPU and display load, the new cell's actual voltage curve doesn't match the IC's stored model, so the laptop cuts power before the true low-voltage threshold. It is not a fault in the replacement cell. Run two full discharge-to-hibernate and uninterrupted-charge-to-100% cycles to recalibrate the fuel gauge IC against the new cell's actual capacity. After calibration, the cutoff should track correctly to the cell's real low-voltage floor near 12.0V.
Compatible Models
Replaces Part Numbers
Technical Specifications
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
HP Battery Check is showing 0% health and "unknown battery" right after I installed the WK04XL — is the cell dead on arrival?
It is not a dead cell. The VICTUS 16 BIOS reads health data stored in EEPROM on the old battery, and when a new cell goes in, that data is missing or mismatched, so the system flags it as unknown. Run one full discharge down to hibernate-cutoff, then charge uninterrupted to 100% without interrupting the cycle. That triggers the BIOS battery learn cycle and clears the stale EEPROM reference. After one to two full cycles, HP Battery Check should report a normal health figure.
Windows is showing 69Wh in battery settings but HP Support Assistant is reporting a different Wh rating — which one is right?
The discrepancy comes from two different data sources. Windows reads the actual measured capacity from the fuel gauge IC, while HP Support Assistant may pull the EEPROM-rated figure embedded in the battery's firmware, which reflects the OEM cell's rated spec rather than a live reading. The 69.3Wh figure in the product data is the correct rated capacity for this cell. After two full calibration cycles, both values should converge closer together as the fuel gauge IC builds an accurate model of the new cell.
My VICTUS 16 charge is stopping at 80% and won't go higher — did I get a faulty battery?
This is almost always a BIOS-controlled charge limit, not a cell fault. HP laptops running Battery Care Mode or Adaptive Charging in UEFI firmware intentionally cap charge at 80% to reduce cell stress during AC-connected use. Open the HP BIOS setup at startup, navigate to the Power or Battery settings menu, and disable Battery Care Mode or set the charge limit to 100%. Once that setting is off, the cell will charge to its full 15.4V termination voltage.
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