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HP Spectre X360 15 11.55V Replacement Battery KB06XL

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New arrival
From $85.99 USD $105.99
Shipping calculated at checkout.
Replaces KB06XL, HSTNN-DB7R, HSTNN-DB8I, and five other OEM part numbers across 100+ HP Spectre x360 15 models.
Supplies 11.55V at 6750mAh capacity; this 77.96Wh rating powers the full system from CPU to display on unplugged operation.
Connector seats into the internal slot with a single locking tab; orientation is fixed by the keyed plastic frame.
We bench-tested the cell against the 15-bl001nv motherboard; BMS accepted the new pack after power-cycle and reported accurate voltage immediately.
After installation, run one full discharge to hibernation 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.
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.

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

11.55V

Amp

6750mAh

HP Spectre X360 15 Series — 11.55V Li-Polymer Replacement Battery (KB06XL)

This is an 11.55V, 6750mAh (77.96Wh) lithium-polymer replacement battery for the HP Spectre X360 15 convertible laptop. It fits the 15-BL001NV, 15-BL081NG, 15-BL102NO, 15-DF0002NA, and over 100 additional Spectre X360 15 variants. OEM cross-references include KB06XL, HSTNN-DB7R, HSTNN-DB8I, and TPN-Q179.

  • Spectre X360 15 platform fit: These models share the same 11.55V three-cell Li-Polymer architecture, identical BMS handshake protocol, and the same slim 5.50mm cell stack — which is why one part number spans the full BL and DF sub-series without modification.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the Spectre X360 15 platform. The BMS negotiated correctly with the EC, charge current stepped down as expected at the top-of-charge threshold, and no false protection trips occurred under sustained CPU and display load.
  • First-cycle calibration on the Spectre X360 15: After installing, run one full discharge until the laptop hibernates on its own, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears in HP Support Assistant after every cell swap.

BIOS reporting poor battery health immediately after replacement

The HP EC reads cycle count, charge history, and rated capacity from the battery's EEPROM. When a new cell arrives, that EEPROM data does not match what the BIOS logged for the old cell, so Windows and HP Support Assistant flag health as "poor" or show 0% rated capacity. This is a data mismatch — not a fault with the new cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite its stored baseline against the new cell's actual readings. After one to two learn cycles, the health status corrects itself.

Spectre X360 15 shutting down at 20–30% charge shown

This happens when a degraded or uncalibrated cell cannot sustain voltage under the combined load of the processor boost state and the 4K OLED display at full brightness. The voltage drops below the EC's cutoff threshold before the fuel gauge reaches 0%, so the system cuts out with charge still displayed. On a new cell, this usually means the fuel gauge IC has not yet calibrated against the new chemistry. Run two full discharge-to-hibernate cycles, charging fully between each. If the shutdown persists below 15% after calibration, check that the EC firmware is current — HP SoftPaq SP84994 or later addresses voltage-floor thresholds on the X360 15 platform.

Compatible Models

Spectre X360 15-BL001NV Spectre X360 15-BL081NG Spectre X360 15-BL102NO Spectre X360 15-DF0002NA SPECTRE X360 15-BL003NB Spectre x360 15-bl050sa SPECTRE X360 15-BL032NG Spectre X360 15-BL000NF Spectre X360 15-BL006NF Spectre X360 15-BL101NB Spectre X360 15-BL150NA Spectre x360 15-bl131ng Spectre x360 15t-bl101ng Spectre X360 15-BL001UR Spectre X360 15-BL100NB Spectre X360 15-BL103NF Spectre X360 convertible 15bl0xx Spectre x360 15-bl050na Spectre X360 15-BL000NO Spectre X360 15-BL008NF Spectre X360 15-BL101NO Spectre X360 15-BL170NZ Spectre X360 15-BL003NF Spectre X360 15-BL100NF Spectre X360 15-BL105NA Spectre x360 15-bl100 Spectre x360 15-bl001na Spectre X360 15-BL001NB Spectre X360 15-BL018CA Spectre X360 15-BL102NB Spectre X360 15-BL190NZ Spectre x360 15-bl001ng Spectre x360 15t-bl100 Spectre X360 15-BL004NF Spectre X360 15-BL100NV Spectre X360 15-BL108NF Spectre x360 15-bl102ng Spectre x360 15-bl075nr Spectre X360 15-BL001NO Spectre X360 15-BL062NR Spectre X360 15-BL102NF Spectre x360 Convertible 15-df0xxx SPECTRE X360 15-BL005NB Spectre x360 15-bl003ng Spectre X360 15-BL101NA Spectre X360 15-BL006NB Spectre X360 15-BL100UR Spectre X360 15-BL110ND Spectre x360 15-bl130ng Spectre X360 15-BL001NX Spectre X360 15-BL081NZ Spectre X360 15-BL102UR Spectre X360 15-DF0008NC Spectre x360 15-bl051na Spectre x360 15-bl090nz Spectre X360 15-BL000NL Spectre X360 15-BL007NF Spectre X360 15-BL101NF Spectre X360 15-BL151NA Spectre x360 15t-bl102ng Spectre X360 15-BL002NF Spectre X360 15-BL100NC Spectre X360 15-BL104NB Spectre X360 convertible 15-bl0xx Spectre X360 15-BL000UR Spectre X360 15-BL010CA Spectre X360 15-BL101UR Spectre X360 15-BL181NO Spectre x360 15-bl000ng Spectre x360 15-bl05na Spectre X360 15-BL003NL Spectre X360 15-BL100NO Spectre X360 15-BL105NF Spectre x360 15-bl101ng Spectre X360 15-BL001NF Spectre X360 15-BL020ND Spectre X360 15-BL102NC Spectre X360 15-BL195NZ SPECTRE X360 15-BL010NF Spectre x360 15-bl002ng Spectre X360 15-BL100NA Spectre X360 15-BL005NF Spectre X360 15-BL100NX Spectre X360 15-BL109NF Spectre x360 15-bl103ng Spectre x360 15-bl000 Z6L02EA SPECTRE X360 15T-BL000 Spectre x360 15-bl031ng Z6L00EA Spectre x360 15-bl051sa SPECTRE X360 15-BL152NR Spectre x360 15-bl000na Spectre x360 15-bl030ng Spectre x360 15-b Z6L01EA SPECTRE X360 15-BL112DX Spectre x360 15 bl012dx Spectre X360 15-BL012DX SPECTRE X360 15-BL108CA Spectre x360 15-bl002xx Z6K99EA Z6K97EA Z6K96EA Spectre x360 15t

Replaces Part Numbers

KB06XL 901307-2C1 902401-2C1 902499-855 HSTNN-DB7R HSTNN-DB8I KB06079XL TPN-Q179

Technical Specifications

Voltage11.55V
Amp Hours6750mAh
Capacity6750mAh
Rate77.96Wh
Net Weight300g /10.58 oz
Gross Weight560g /19.75 oz
Approximate Weight560g /19.75 oz
Dimension 326.30 x 109.20 x 5.50mm

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 shows my new battery as "unknown" or 0% health right after I installed it — is the cell faulty?

The BIOS reads health data from the old cell's EEPROM and flags a mismatch when the new cell's stored data doesn't align with what it expects. The cell is not faulty. Run one full discharge until the laptop hibernates on its own, then charge uninterrupted to 100%. After one or two of these learn cycles, HP Support Assistant will update and display the correct health status.

The fuel gauge is jumping around — showing 60%, then 45%, then back to 55% within minutes. What's happening?

The fuel gauge IC on the Spectre X360 15 calibrates itself against charge and discharge data from the previous cell. With a new cell installed, it has no accurate reference curve yet, so readings swing wildly for the first few cycles. This is not a wiring or BMS fault. Run two complete discharge-to-hibernate and full-charge cycles back to back — the gauge IC builds its reference table from that data and stabilises from cycle three onward.

Windows shows my replacement battery as 72Wh but the spec says 77.96Wh — why is there a discrepancy?

The Wh figure Windows reports is pulled from the EEPROM's "design capacity" field, which the EC cross-checks against its own stored value from the original cell. Until the BIOS completes a full learn cycle on the new cell, it may display the old cell's rated figure or a default fallback. After one full discharge-to-hibernate followed by a complete charge, the EC rewrites its baseline and the reported Wh value will align with the cell's actual 77.96Wh rating.

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