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HP Envy X2 13" BV02XL Replacement Battery 7.6V 4200mAh

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From $63.99 USD $79.99
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Fits HP Envy X2 13" detachable display unit; replaces BV02XL, HSTNN-IB6Q, 776621-001, and eight other OEM part numbers.
7.6V and 4200mAh capacity matches the tablet component's original power delivery and charge cycle count.
Connector slides into the proprietary slot on the display back panel with a small locking tab that clicks when seated correctly.
We ran this cell through five full discharge-to-shutoff cycles on the detachable unit; the BMS held steady voltage under display-only load and flagged no communication errors.
After installation, fully discharge the tablet to system hibernation, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warning that appears 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

7.6V

Amp

4200mAh

HP Envy X2 13" — 7.6V Li-Polymer Replacement Battery (BV02XL)

This is a 7.6V, 4200mAh (31.92Wh) lithium-polymer replacement battery for the HP Envy X2 13" detachable hybrid. It fits the display unit — the tablet half of the 2-in-1. Compatible OEM part numbers include BV02XL, 776621-001, HSTNN-IB6Q, and TPN-I116, covering the Envy X2 13-J000 series and related variants.

  • Envy X2 13" display unit compatibility: These models share the same flat Li-Polymer cell, 7.6V voltage rail, and connector pinout on the detachable display board. The BMS handshake is identical across the J000 series variants, so one cell covers the full range.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Envy X2 platform. The BMS accepted the cell without fault flags, balanced correctly at full charge, and held the 7.6V nominal rail under load without sagging to cutoff.
  • Post-install discharge cycle: After fitting this cell, 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 appears after every cell swap on the Envy X2.

BIOS reporting poor battery health after replacing the Envy X2 cell

When you swap the cell, the BIOS still holds EEPROM data from the old battery. That data includes cycle count, wear level, and rated capacity — all tied to the original cell's history. Until the learn cycle runs, the BIOS compares the new cell against stale figures and flags it as degraded. One full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the firmware to re-anchor its reference points to the new cell. After that cycle, the health warning clears and the reported capacity aligns with the 31.92Wh rating.

Fuel gauge showing wildly wrong percentage for the first few charges

The fuel gauge IC on the Envy X2 estimates state of charge by tracking voltage curves it learned from the old cell. A new cell has a different voltage-to-capacity curve until the IC calibrates against it. You'll see jumps — 40% dropping to 10% instantly, or the gauge stalling near full. Run two to three full discharge and charge cycles without interrupting either phase. By the third cycle the IC has enough data points to track the new cell accurately and the percentage readout stabilises.

Compatible Models

Envy X2 13" Envy X2 13-J000NG Envy X2 13-J000NS Envy X2 13-J000NF Envy X2 13-J002DX Envy X2 13-J000NA Envy X2 13-J099NX Envy 13-J000NA Envy 13-j000nx Envy 13-j098nx Envy X2 13-J031NG Envy X2 13-J011NW Envy 13-J079NG Envy 13-j020nd Envy 13t-j000 Envy X2 13-J002TU Envy X2 13-J000NI Envy 13-J001NF Envy 13-j001ng Envy X2 13-J001NE Envy X2 13-J050SA Envy X2 13-J021ND Envy 13-j000ne Envy 13-j021nd Envy X2 13-J000NE Envy X2 13-J001NI Envy 13-J020NI Envy 13-j010ne Envy X2 13-J001NG Envy X2 13-J071NZ Envy X2 13-J030CA Envy 13-j000no Envy 13-j031ng Envy X2 13-J020ND Envy X2 13-J010NE Envy 13-J050NA Envy 13-j010nw Envy X2 13-J001TU Envy X2 13-J099NT Envy X2 13-J080NO Envy 13-j000nt Envy 13-j080no Envy X2 13-J000NP Envy X2 13-J030NG Envy X2 13-J010NW Envy 13-J070NZ Envy 13-j011nw Envy X2 13-J002NE Envy X2 13-J102DX Envy 13-J000NS Envy 13-j001ne Envy 13-j099nx Envy X2 13-J000NX Envy X2 13-J050NA Envy X2 13-J020NI Envy 13-J099NT Envy 13-j020ne Envy X2 13-J011NF Envy X2 13-J000NT Envy 13-J001NX Envy 13-j002ne Envy X2 13-J001NF Envy X2 13-J070NZ Envy X2 13-J021NI Envy 13-j030ng Envy X2 13-J020CA ENVY X2 13-J003TU Envy 13-J021NI Envy 13-j010nia Envy X2 13-J001NX Envy X2 13-J098NX Envy X2 13-J079NG Envy 13-j000np Envy 13-j071nz Envy X2 13-J000NO Envy X2 13-J020NE ENVY X2 13-J010NIA Envy 13-J050SA Envy 13-j011nf Envy X2 13-J012DX Envy 13-j000 Envy 13-j000ng Envy x2 Detachable 1

Replaces Part Numbers

BV02XL 776621-001 HSTNN-IB6Q 775624-121 775624-1C1 776621-006 BV02033XL HSTNN-1B6Q TPN-I116

Technical Specifications

Voltage7.6V
Amp Hours4200mAh
Capacity4200mAh
Rate31.92Wh
Net Weight160g /5.64 oz
Gross Weight420g /14.82 oz
Approximate Weight420g /14.82 oz
Dimension 275.10 x 86.60 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

HP Support Assistant says my new Envy X2 battery is at 0% health — is the replacement cell dead already?

It isn't dead. The BIOS is reading EEPROM wear data left over from the old cell and flagging the new one as degraded before it has run a single cycle. Discharge the tablet fully until it hibernates, then charge it uninterrupted to 100% without using the device. That single learn cycle resets the firmware reference and the health warning clears.

My Envy X2 is shutting down while the screen still shows 25% battery remaining — what's causing that?

The fuel gauge IC hasn't finished calibrating to the new cell's voltage curve yet, so the percentage readout doesn't match the actual charge state. When real voltage drops to the BMS cutoff threshold, the system shuts down even though the gauge still shows charge remaining. Run two full discharge-to-hibernate and uninterrupted charge-to-100% cycles back to back. After the second cycle the IC recalibrates and the shutdowns stop.

System information shows the Envy X2 battery as 28Wh but the replacement is rated 31.92Wh — which figure is right?

The 31.92Wh figure from the cell is correct. The 28Wh reading in system info pulls from EEPROM data that the old cell wrote to the board — that value reflects the original cell's rated or measured capacity at end of life, not the new cell. After one full discharge-to-hibernate and charge-to-100% cycle, the firmware re-reads the cell and updates the Wh figure to match the replacement.

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