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HP Envy X2 15 Compatible Battery SM03XL 11.4V 4300mAh

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From $104.99 USD $125.99
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Fits HP Envy X2 15 display tablet with part number SM03XL and OEM variants 767069-005, HSTNN-IB6O, 76802-1C1.
11.4V 4300mAh lithium-polymer cell powers the detachable display unit for extended portable operation.
Connector is proprietary HP contact pad; battery slides into the tablet frame rear with alignment notch.
We bench-tested voltage ramp and BMS response under simulated CPU and display load—cell held 11.2V floor at peak draw with no early cutoff.
On first charge after installation, run a full discharge cycle to sleep mode, then charge uninterrupted to 100%—this resets the BIOS fuel gauge IC against the new cell and clears the inaccurate health warnings that appear after every battery swap.
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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.

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

11.4V

Amp

4300mAh

HP Envy X2 15 — 11.4V Li-Polymer Replacement Battery (SM03XL)

This is an 11.4V, 4300mAh (49.02Wh) Li-Polymer replacement battery for the HP Envy X2 15 series 2-in-1. It fits the detachable display unit — the tablet portion of the device — not the keyboard base. Compatible across Envy X2 15-C000 and 15-C001 variants, cross-referencing OEM part numbers SM03XL, 767069-005, and HSTNN-IB6O among others.

  • Envy X2 15 display unit fit: The Envy X2 15 series shares a single battery platform across its C000 and C001 submodels. Same connector pinout, same BMS handshake protocol, same 11.4V rail feeding the detachable display. One cell fits the full run of this series.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the Envy X2 15 platform. The BMS negotiated correctly with the host device, charge termination triggered at the expected voltage ceiling, and no protection trip occurred during display-load draw.
  • Post-install calibration on the Envy X2 15: After fitting this cell, run a full discharge until the device hibernates, then charge uninterrupted to 100% without interruption. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on this platform.

BIOS reporting poor battery health immediately after fitting a new cell

The HP Envy X2 15 BIOS reads health data from EEPROM embedded in the battery pack. When a new cell goes in, that EEPROM carries different cycle count and capacity data than the firmware expects, so the BIOS flags it as degraded — even though the cell is brand new. This is a firmware calibration issue, not a fault with the replacement. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite its battery learn table against the new cell. After one or two cycles, the health indicator normalises.

Envy X2 15 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 OS reads the old curve, reports 25% remaining, but the cell voltage has already dropped below the BMS cutoff threshold under combined CPU and display load — so the device shuts off. The fuel gauge needs two to three full discharge and charge cycles to map the new cell accurately. After calibration, the reported percentage at shutdown will align with the actual cutoff voltage of approximately 9.0V under load.

Compatible Models

Envy X2 15 Envy X2 15-C001 Envy X2 15-C000NG Envy X2 15-C000NA Envy X2 15-C000ND Envy 15-C101DX Envy X2 15-C001TU Envy X2 15-C011 Envy x2 15-c001nf Envy x2 15-c010ng Envy x2 15-c017la Envy x2 15-c021nd Envy x2 15-c050nz Envy x2 15-c098nf Envy X2 15-C011DX Envy x2 15-c001ns Envy x2 15-c010nia Envy x2 15-c020nd Envy x2 15-c029la Envy x2 15-c050sa Envy X2 15-C Envy x2 15-c000no Envy x2 15-c011nw Envy x2 15-c020nf Envy x2 15-c050na Envy x2 15-c051nz Envy X2 15-c001dx Envy x2 15-c101dx Envy x2 15-c000

Replaces Part Numbers

SM03XL 767069-005 HSTNN-IB6O 76802-1C1 15-C011DX 466802-121 766802-121 766802-1C1 767069-006 HSTNN-IB60 SM03 SM03050XL TPN-I114 TPN-l114

Technical Specifications

Voltage11.4V
Amp Hours4300mAh
Capacity4300mAh
Rate49.02Wh
Net Weight234g /8.25 oz
Gross Weight494g /17.43 oz
Approximate Weight494g /17.43 oz
Dimension 278.80 x 204.40 x 3.80mm

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

Why does Windows show the HP Envy X2 15 battery as "0% available (plugged in, not charging)" right after I installed the new cell?

This is the BIOS battery learn cycle failing to recognise the new cell's EEPROM data on first boot. The charge controller stalls until the firmware re-initialises against the new pack. Disconnect the charger, let the tablet drain fully until it hibernates, then plug in and charge uninterrupted to 100%. After that single full cycle, the charge controller re-establishes communication and charging resumes normally.

The Envy X2 15 system info shows the new battery as 38Wh, but the replacement is rated 49.02Wh — is the cell faulty?

The Wh figure displayed in HP's battery info screen is pulled from EEPROM data written at the factory for the original cell, not from a live measurement of the new one. The EEPROM on the replacement cell carries a different rated value, and the OS reports whatever it reads there. This is a data mismatch between two valid cell specifications — not a fault. Run two full calibration cycles and the reported figure will settle; if it remains off, check under Device Manager → Batteries that no cached driver data from the old pack is still present.

My HP Envy X2 15 fuel gauge jumps from 60% to 15% with no warning — what's causing that?

The fuel gauge IC is still mapping the new cell's discharge curve against the old cell's calibration data stored in firmware. The IC predicts voltage drop based on the previous cell's behaviour, and when the actual voltage falls faster than the model expects, it corrects sharply downward. This resolves after two to three full discharge-and-charge cycles, which let the IC rebuild its discharge model against the actual chemistry. Run the cycles with the device under normal use load — not just idle — so the IC captures the voltage sag that occurs at real-world draw.

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