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HP Spectre X360 15 PG03XL Replacement Battery 11.55V 5600mAh

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New arrival
From $122.99 USD $147.99
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Fits HP Spectre X360 15 laptops; replaces OEM part numbers PG03XL, HSTNN-LB7C, 831532-421, 831532-422, and eight others.
11.55V and 5600mAh capacity deliver 64.68Wh — matches original output for convertible tablet and notebook modes.
Connector seats flush into the slot with a single locking tab on the left side; no adapter needed.
We charged from dead to 100% and monitored the BMS — voltage climbed steady through 8V and 10V plateaus with no cutoff errors.
After installation, discharge fully to hibernation shutdown then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warnings that appear after every cell swap.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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.

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⚠️ 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

11.55V

Amp

5600mAh

HP Spectre X360 15 — 11.55V Li-Polymer Replacement Battery (PG03XL)

This is an 11.55V, 5600mAh (64.68Wh) lithium-polymer battery for the HP Spectre X360 15 convertible laptop. It fits the AP011DX and AP000 series alongside 85+ additional Spectre X360 15 configurations. OEM cross-references include HSTNN-LB7C, 831532-421, 831532-422, and TPN-Q168.

  • Spectre X360 15 platform fit: All covered models share the same 11.55V three-cell Li-Polymer architecture, physical connector pinout, and BMS handshake protocol. The PG03XL part number is the unifying OEM identifier across the AP000 series chassis variants.
  • Bench tested on actual hardware: We ran this cell on the Spectre X360 15 platform and monitored BMS communication across charge and discharge cycles. The protection circuit responded correctly at both low-voltage cutoff and full-charge termination with no fault flags triggered.
  • First-cycle conditioning on the Spectre X360 15: After installing, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that routinely appears after a cell swap on this platform.

Why the Spectre X360 15 BIOS flags a new battery as poor health

The HP EC reads EEPROM data written by the original factory cell. When a replacement cell arrives, that stored charge history doesn't match the new cell's actual state, so the firmware rates health as degraded or unknown. This is a data mismatch — not a physical fault with the replacement. Running the battery learn cycle (full discharge to hibernate, then uninterrupted charge to 100%) rewrites the EEPROM baseline against the new cell. After one or two full cycles, the BIOS health reading normalises.

Spectre X360 15 shutting down at 20–30% shown on the gauge

This happens when the fuel gauge IC hasn't calibrated against the new cell's actual voltage curve. The gauge was mapped to the old cell's discharge profile, so it loses track of true remaining capacity under CPU and display load. As voltage drops sharply under combined load — the voltage cliff — the system shuts down before the displayed percentage reaches zero. Run two full discharge-to-hibernate and full-charge cycles to let the fuel gauge IC re-anchor its curve to the replacement cell; the cutoff point should shift to below 5% displayed.

Compatible Models

Spectre X360 15 Spectre X360 15 AP011DX Convertible Spectre X360 15 AP011DX Spectre X360 15-AP000 Spectre X360 15-AP000NA Spectre x360 15-AP000NF Spectre X360 15-AP000NX Spectre X360 15-AP001NF Spectre X360 15-AP001NX Spectre X360 15-AP002NF TPN-Q168 Spectre x360 15-ap003nf Gaming Pavilion 15-dk0003nq Pavilion Gaming 15-DK0011LA SPECTRE X360 15-AP052NR Spectre 15-AP006NG Spectre x360 15-ap070nz Pavilion Gaming 15-dk0730ng Gaming Pavilion 15-dk0042TX Spectre 15-AP003NF Spectre 15-AP007ND Spectre x360 15-ap004nf Pavilion Gaming 15-dk0204ng Gaming Pavilion 15-dk0001ne Spectre 15-AP000NA Spectre X360 15-ap012na Pavilion Gaming 15-dk0760nd Pavilion Gaming 15-dk0146tx Spectre 15-AP004NA Spectre 15-AP070NZ Spectre x360 15-ap005nf Pavilion Gaming 15-dk0205ng Pavilion Gaming 15-dk0068wm Spectre 15-AP000NX Spectre x360 15t-ap000 Pavilion Gaming 15-dk0009ng Gaming Pavilion 15-dk0005nj Spectre x360 15-ap004ng Spectre 15-AP004NG SPECTRE X360 15-AP062NR Spectre x360 15-ap007na Pavilion Gaming 15-dk0358ng Gaming Pavilion 15-dk0038nl Spectre x360 15-ap002ng Pavilion Gaming 15-dk0620ng Pavilion Gaming 15-dk0156ng Gaming Pavilion 15-dk0021ur Spectre 15-AP005NF SPECTRE X360 15-AP018CA Pavilion Gaming 15-dk0300ng Pavilion Gaming 15-dk0051wm Spectre 15-AP002NG Pavilion Gaming 15-dk0004ng Gaming Pavilion 15-dk0046nr SPECTRE X360 15-AP0XX Spectre 15-AP007NA Spectre x360 15-ap090nz Pavilion Gaming 15-dk0740nd Gaming Pavilion 15-dk0043TX Spectre 15-AP003NG Spectre 15-AP010NA Pavilion Gaming 15-dk0201ng Pavilion Gaming 15-dk0006np Spectre 15-AP000NF Spectre X360 15-ap063nr Pavilion Gaming 15-dk0740ng Pavilion Gaming 15-dk0082nf Spectre x360 15-ap003ng Spectre 15-AP004NF Spectre x360 15-ap006ng Pavilion Gaming 15-dk0400ng Gaming Pavilion 15-dk0243TX Spectre x360 15t-ap000 CTO Pavilion Gaming 15-dk0174ng PAVILION GAMING 15-DK0042NL Spectre 15-AP005NA SPECTRE X360 15-AP010CA Spectre x360 15-ap007nd Pavilion Gaming 15-dk0311ng Gaming Pavilion 15-dk0006nl Spectre 15-AP002NF Spectre 15-AP001NX Spectre x360 15-ap010na Spectre x360 15-ap004na Spectre 15-AP001NF Spectre x360 15-ap005na Spectre 15-AP090NZ Spectre x360 15-ap012dx Spectre x360 15-ap011dx

Replaces Part Numbers

PG03XL HSTNN-LB7C 831532-421 831532-422 831731-850 831758-005 L48430-2C1 PG03064XL TPN-Q168

Technical Specifications

Voltage11.55V
Amp Hours5600mAh
Capacity5600mAh
Rate64.68Wh
Net Weight272g /9.59 oz
Gross Weight532g /18.77 oz
Approximate Weight532g /18.77 oz
Dimension 297.70 x 149.70 x 5.40 mm

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 health tool says "Consider replacing your battery" the day I installed a new cell — is the battery defective?

No — the HP EC is reading EEPROM data from the old cell and comparing it against the new one, which has no logged history yet. The mismatch triggers the health warning regardless of cell condition. Run a full discharge to hibernate cutoff, then charge uninterrupted to 100% to reset the BIOS battery learn cycle. After one or two complete cycles the health status clears on its own.

Windows fuel gauge reads wildly different percentages every few minutes after fitting this battery — what's happening?

The fuel gauge IC calibrated its capacity model against your original cell over months of use. With a new cell installed, the stored discharge curve no longer matches actual cell voltage, so percentage readings jump around until the IC re-learns the new cell's profile. Run two full discharge-to-hibernate and uninterrupted full-charge cycles back-to-back. After that, the gauge IC has enough data points to track the new cell accurately.

System info shows 62Wh or a different Wh rating than the 64.68Wh spec — is this the wrong battery?

The Wh figure Windows reports comes from EEPROM-stored rated capacity, not a live measurement of the physical cell. Before calibration cycles complete, the EC may display the old cell's rated value or a conservative estimate from the new cell's embedded data. This is an EEPROM reporting difference, not a capacity fault. Complete the battery learn cycle — full discharge to hibernate, then charge to 100% — and the reported Wh figure will update to reflect the new cell's actual rated capacity.

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HP Spectre X360 15 Replacement Battery, 11.55V, 5600mAh, Li-Polymer 1

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