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HP Pavilion X360 NP03XL Replacement Battery 11.4V 3750mAh

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From $63.99 USD $79.99
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Fits HP Pavilion X360 convertible laptops; replaces NP03XL, HSTNN-LB6L, 760944-421, and 761230-005 OEM part numbers.
11.4V and 3750mAh capacity delivers 42.75Wh — enough to sustain full CPU plus display load without voltage sag on this 13-inch 2-in-1.
Connector seats straight into the battery bay slot with a single locking tab on the right side; no rotation needed.
We bench-tested the cell against a Pavilion X360 13-A010DX under sustained load; BMS held steady at 11.4V nominal, no early cutoff.
After installation, run one complete discharge to hibernation-cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings.
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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.

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

Voltage

11.4V

Amp

3750mAh

HP Pavilion X360 — 11.4V Li-Polymer Replacement Battery (NP03XL)

This is an 11.4V, 3750mAh (42.75Wh) lithium-polymer battery for the HP Pavilion X360 convertible notebook. It fits the TPN-Q146, TPN-Q147, TPN-Q148, and TPN-Q149 board revisions, along with the Pavilion X360 13-A010DX and the broader Pavilion X360 range. OEM cross-references include HSTNN-LB6L, 760944-421, 761230-005, and 767068-005.

  • Pavilion X360 TPN-Q146 through TPN-Q149 compatibility: These four board variants share the same 11.4V three-cell lithium-polymer rail, connector pinout, and BMS handshake protocol — which is why a single cell replaces all of them without modification.
  • Bench tested on actual hardware: We ran this cell on a TPN-Q147 unit. The BMS completed charge acceptance without flagging a fault, voltage held steady under combined CPU and display load, and the fuel gauge IC registered cell capacity within one calibration cycle.
  • Post-installation discharge cycle on the X360: After fitting this cell, run the laptop on battery until it hibernates at low charge, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears after every cell swap on this platform.

BIOS reporting poor battery health immediately after fitting the NP03XL

The HP BIOS stores learned capacity data from the previous cell in a battery learn table. When a new cell goes in, that table still reflects the old, degraded values — so the system flags the health as poor before it has measured the new cell at all. This is not a fault with the replacement. The BIOS needs one full discharge-to-hibernate followed by an uninterrupted charge to 100% to rewrite the learn table against the new chemistry. After that cycle, the health indicator should return to normal.

Pavilion X360 shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge maps a voltage reading to a percentage based on old cell data, so it under-reports remaining charge — and the laptop hits its low-voltage cutoff while the screen still shows 20–30%. The fix is to complete two or three full discharge-and-charge cycles without interruption. After calibration, the cutoff aligns with the displayed percentage, and the laptop should reach the screen-off hibernate point below 5%.

Compatible Models

Pavilion X360 Pavilion X360 13-A010DX TPN-Q146 TPN-Q147 TPN-Q148 TPN-Q149 Envy x360 Touchsmart Envy x360 15-U011DX Pavilion X360 13-B122TU Pavilion 13-A051SR Envy 15-u252na Pavilion X360 13-B216TU Pavilion X360 13-B206TU Pavilion 13-A091NR Pavilion X360 13-A010LA Pavilion X360 13Z-A000 Pavilion 13-A101NA Pavilion X360 13-A080NA Pavilion 13-B112TU Pavilion 13-A133CA Pavilion 13-B128TU Pavilion 13-A200NE Pavilion 13-B207TU Pavilion 13-A202NF Pavilion 13-B220TU Pavilion 13-b000no Pavilion 13-A220NW Envy X360 15-U100NR Pavilion 13-B271NG Pavilion 13-A285ND Envy X360 15-U205NA Pavilion 13-A001LA Envy 15-u100ng ENVY 15-U337CL Pavilion 13-A005NE Envy 15-u200nq Pavilion X360 13-A001LA Pavilion 13-A020NR Envy 15-u203nk Pavilion X360 13-B114TU Pavilion 13-A050ER Envy 15-u221nw Pavilion X360 13-B131TU Pavilion 13-A081NR Pavilion X360 13-A000NL Pavilion X360 13-B225TU Pavilion 13-A100NI Pavilion X360 13-A050NB Pavilion 13-B080NA Pavilion 13-A105NX Pavilion X360 13-A100NE Pavilion 13-B121TU Pavilion 13-b107tu Pavilion 13-A155UR Pavilion X360 13-A186NO Pavilion 13-B201NP Pavilion 13-b108tu Pavilion 13-A201NJ Pavilion 13-B215TU Pavilion X360 13-a000ng Pavilion 13-A204NK Pavilion 13-B227TU Pavilion 13-b200 Pavilion 13-A250UR Envy X360 15-U200NA Pavilion 13-A000NK ENVY 15-U101NX Envy X360 15-U252SA PAVILION 13-A002NO Envy 15-u171nz Pavilion X360 13-B105TU Pavilion 13-A011DX Envy 15-u202na Pavilion X360 13-B124TU Pavilion 13-A052NA Envy 15-u270nb Pavilion X360 13-B218TU Pavilion X360 13-B208TU Pavilion 13-A092SA Pavilion X360 13-A020ND Pavilion 13-B000EJ Pavilion 13-A101NX Pavilion X360 13-A087NO Pavilion 13-B114TU Pavilion 13-a058ca Pavilion 13-A150NC Pavilion X360 13-A133CA Pavilion 13-B130TU Pavilion 13-A200NJ Pavilion X360 13-A202NE Pavilion 13-B209TU Pavilion X360 13-a150ng( L0M48EA) Pavilion 13-A202NP Pavilion 13-B221TU Pavilion 13-b100 Pavilion 13-A221NO Envy X360 15-U100NX Pavilion 13-A000EJ ENVY 15-U499NR Envy X360 15-U210NX Pavilion 13-A001NF Envy 15-u100nt ENVY 15-U399NR Pavilion 13-A006NA Envy 15-u200nu Pavilion X360 13-A051XX Pavilion 13-A030ND Envy 15-u209nx Pavilion X360 13-B117TU Pavilion 13-A050SQ Envy 15-u231nd Pavilion X360 13-B201TU Pavilion 13-A087NO Pavilion X360 13-B227TU Pavilion 13-A100NO Pavilion X360 13-A051SR Pavilion 13-B081NO Pavilion 13-A107NF Pavilion X360 13-A100NO Pavilion 13-B123TU Pavilion 13-A175NR Pavilion X360 13-A200NS Pavilion 13-B202TU Pavilion X360 13-a000nc (G7Y27EA) Pavilion 13-A201NS Pavilion 13-B217TU Pavilion X360 13-a040nz Pavilion 13-A205NI Pavilion 13-B229TU Pavilion 13-A251UR Envy X360 15-U201NQ Pavilion 13-A000NO ENVY 15-U111DX Pavilion 13-A002SI Envy 15-u200na Pavilion X360 13-B107TU Pavilion 13-A012DX Envy 15-u202nf Envy 15-u210nw Pavilion X360 13-B126TU Pavilion 13-A068CA Envy 15-u280nb Pavilion X360 13-B220TU Pavilion X360 13-B210TU Pavilion 13-A093SA Pavilion X360 13-A030ND Pavilion 13-B000ST Pavilion 13-A103NA Pavilion X360 13-A089NO Pavilion 13-B116TU ENVY x360 15-u170ca Pavilion 13-A150NR Pavilion X360 13-A150NC Pavilion 13-B132TU Pavilion 13-A200NS Pavilion X360 13-A206NE Pavilion 13-B210TU Pavilion X360 13-a200 Pavilion 13-A203NA Pavilion 13-B222TU Pavilion 13-b100np Pavilion 13-A230NO Envy X360 15-U101NQ Pavilion 13-A000NA ENVY 15-U001XX Envy X360 15-U231NO Pavilion 13-A001NX Envy 15-u101ne ENVY 15-U437CL Pavilion 13-A007NA Envy 15-u201nc Pavilion X360 13-B102TU Pavilion 13-A040NW Pavilion X360 13-B119TU Pavilion 13-A051ER Envy 15-u232nd Pavilion X360 13-B203TU Pavilion 13-A089NO Pavilion X360 13-A004AU Pavilion X360 13-B229TU Pavilion 13-A100NQ Pavilion X360 13-A058CA Pavilion 13-B102TU Pavilion 13-A110DX Pavilion X360 13-A103NA Pavilion 13-B125TU Pavilion 13-A186NO Pavilion X360 13-A200NW Pavilion 13-B204TU Pavilion X360 13-a000no (J1X12EA) Pavilion 13-A201TU Pavilion 13-B219TU Pavilion X360 13-a150ng Pavilion 13-A206NE Pavilion 13-B230NZ Pavilion 13-A252UR Envy X360 15-U202NA Pavilion 13-A000SI ENVY 15-U170NZ Pavilion 13-A003NF Envy 15-u200ne Pavilion 13-A019WM Envy 15-u202nia Pavilion 13-A041CA Envy 15-u211nw Pavilion X360 13-B128TU Pavilion 13-A072NR Envy 15-u287nb Pavilion X360 13-B222TU Pavilion X360 13-B212TU Pavilion 13-A100NE Pavilion 13-B001ST Pavilion 13-A103NX Pavilion X360 13-A092SA Pavilion 13-B118TU Pavilion 13-A151NR Pavilion X360 13-A151NC Pavilion 13-B200NP

Replaces Part Numbers

NP03XL HSTNN-LB6L 760944-421 761230-005 760944-541 767068-005 TPN-Q146 TPN-Q147 TPN-Q148 TPN-Q149

Technical Specifications

Voltage11.4V
Amp Hours3750mAh
Capacity3750mAh
Rate42.75Wh
Net Weight181g /6.38 oz
Gross Weight321g /11.32 oz
Approximate Weight321g /11.32 oz
Dimension 186.75 x 103.50 x 7.16mm

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 Pavilion X360 shows 0% battery and won't recognise the new cell at all — what's happening?

The EEPROM data from the old cell is still cached in the HP battery subsystem, and the BIOS has not yet handshaked with the new cell's embedded controller. Disconnect AC power, hold the power button for 15 seconds with no battery fitted, then refit the battery and connect AC. This forces a fresh EEPROM read. If the gauge still reads 0% after one full charge cycle, confirm the connector is fully seated — the three-cell NP03XL connector clicks at around 2–3mm of travel on the X360 board.

Why does Windows show a different Wh rating for this battery than the original HP cell?

The Wh value Windows reads comes from the battery's EEPROM, which stores the manufacturer's rated capacity at time of production. Our cell is rated at 42.75Wh; if Windows shows a slightly different figure, it is reading the EEPROM value rather than measuring actual chemistry output. This does not affect charging or discharge behaviour. The fuel gauge IC recalibrates against real cell voltage after two or three full cycles, and the reported value will stabilise.

New NP03XL charges but stops at 80% and won't go higher — is the cell faulty?

This is almost always a BIOS-controlled charge limit, not a cell fault. HP laptops running certain firmware revisions activate a battery health charge cap at 80% to reduce cycle stress — it is a software setting, not a hardware failure. Open HP Support Assistant, navigate to Battery settings, and check whether "Battery Care Function" or a charge limit is enabled. Disable it and plug in again; the charge should continue past 80% and reach 100%.

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