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HP Pavilion 15 Replacement Battery 10.95V 2600mAh 807611-121

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From $52.99 USD $65.99
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Fits HP Pavilion 15-AC154NG and replaces OEM part numbers 807611-121, 807612-121, HS04, HS04XL, HSTNN-DB7I, and related variants.
10.95V, 2600mAh lithium-ion cell delivers 28.47Wh — sufficient for this 15-inch notebook's standard daily workload without extended drain.
Connector type is proprietary HP contact block; seats flat into the battery bay with spring-loaded retention tab facing the hinge side.
We ran this cell through discharge-recharge cycles on a Pavilion 15-AC unit; BMS accepted the new pack after first insertion with no fault codes.
After installation, run one full discharge to sleep-mode cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears false health warnings that appear after every cell 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.

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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

10.95V

Amp

2600mAh

HP Pavilion 15-AC154NG — 10.95V Li-ion Replacement Battery (807611-121)

This is a 10.95V, 2600mAh (28.47Wh) lithium-ion replacement battery for the HP Pavilion 15-AC154NG and a wide range of Pavilion 15 and 17 series notebooks. It covers OEM part numbers including HS03, HS04, HSTNN-LB6U, and 807956-001, among others. If your original pack no longer holds a charge or the laptop runs only on AC power, this cell fits the same connector and BMS interface.

  • Pavilion 15/17 series compatibility: HP used the same 10.95V three-cell architecture and HS03/HS04 BMS handshake across multiple Pavilion 15-AC, 15-AY, and 17-X sublines. The connector pinout, voltage rail, and communication protocol are identical across this generation, so one cell covers all of them.
  • Bench tested on actual hardware: We cycled this cell on a Pavilion 15-AC unit and confirmed the BMS initialised correctly, charge current ramped normally through CC/CV stages, and the pack hit full termination voltage without fault codes.
  • Post-install discharge cycle on Pavilion notebooks: After fitting, run the laptop on battery until it hibernates at near-zero, then charge uninterrupted to 100%. This forces the HP BIOS to complete its battery learn cycle. Skipping this step often leaves the fuel gauge reporting inaccurate percentages or a false "poor health" warning for the first several sessions.

BIOS reporting poor battery health immediately after a cell swap

HP's BIOS reads health data stored in the pack's EEPROM and compares it against learned charge history from the previous cell. A fresh replacement has no history, so the BIOS flags it as degraded until it accumulates real cycle data. This is not a fault with the new cell — it is a calibration gap. Run two full discharge-to-hibernate and full-recharge cycles. After that, the health indicator in HP Support Assistant updates to reflect actual capacity.

Laptop shuts off at 20–30% charge shown on screen

This happens when the fuel gauge IC has not yet calibrated to the new cell's discharge curve. The percentage reading is based on old voltage-to-capacity mappings, so the displayed figure and the actual cell voltage diverge under load. When the CPU and display draw full current, the cell voltage drops below the BMS cutoff threshold before the gauge reaches zero. Run a full uninterrupted discharge until the unit hibernates, then charge to 100% — the gauge IC resets its reference point and the shutoff behaviour corrects from that cycle onward.

Compatible Models

Pavilion 15-AC154NG Pavilion 15-AY100NA Pavilion 15-ac168TU Pavilion 17-X106TX Pavilion 15-AY003TU Pavilion 15-AY091NG Pavilion 15-AF022ND Pavilion 15-BA016NW Pavilion 14-AC108NE Pavilion 15-AY028TU Pavilion 15-AY131NS Pavilion 15-AY033TU Pavilion 15-BA054 Pavilion 17-Y020CY Pavilion 14-AM011TX Pavilion 15-AY066UR Pavilion 15-BA003UR Pavilion 15-BG008AU Pavilion 15-AC007NU Pavilion 15-AY109NK Pavilion 15-BA032NL Pavilion 17-X090NF Pavilion 15-af087nw Pavilion 15-AC105NQ Pavilion 15-AY505NA Pavilion 15-BA095NA Pavilion 14-AN016AU Pavilion 14-AM086NIA Pavilion 15-AC133NF Pavilion 15-ac119TX Pavilion 15-BE007TX 250 G5-Z2X83ES Pavilion 17-X001DS Pavilion 15-AF105NL Pavilion 15-AC040NO Pavilion 15-AC614NL Pavilion 15-af103AX Pavilion 14-AC003NF Pavilion 15-AY134NE 250 G4-M9S91EA Pavilion 14-AC155TU Pavilion 15-AY016NK Pavilion 15-AC119NT Pavilion 15-AF123NL Pavilion 15-ac041TU Pavilion 14-AF106LA Pavilion 15-AY589NG Pavilion 15-AC142NK Pavilion 15-AY046NL Pavilion 15-AC158NM Pavilion 15-AY105NA Pavilion 15-ac175TX Pavilion 17-X109NM Pavilion 15-AY004NZ Pavilion 15-AF030UR Pavilion 15-BA018CY Pavilion 14-AC111LA Pavilion 15-AY030CY Pavilion 15-AY045TU Pavilion 15-BA056 Pavilion 17-Y023NG Pavilion 14-AM014NG Pavilion 15-AY069ND Pavilion 15-BA005DS Pavilion 17-X024NZ Pavilion 15-AC009NK Pavilion 15-AY110NM Pavilion 15-BA034CA Pavilion 17-X098NF Pavilion 15g-ad100 Pavilion 15-AC107NA Pavilion 15-AY508NG Pavilion 15-BA099UR Pavilion 14-AN026AU Pavilion 14-AM096TU Pavilion 15-AC135NE Pavilion 15-ac122TX Pavilion 15-AY096NL Pavilion 15-BE015TX 250 G5-Z3A01ES Pavilion 17-X027NG Pavilion 15-AF113LA Pavilion 15-AC045UR Pavilion 15-AC644UR Pavilion 15-af110LA Pavilion 14-AC006TU Pavilion 15-AY142TU 250 G4-P5R26ES Pavilion 14-AF003AX Pavilion 15-AY017NV Pavilion 15-AC121NA Pavilion 15-AF130UR Pavilion 15-ac048TX Pavilion 14-AF117LA Pavilion 15-BA002NA Pavilion 15-AC147NA Pavilion 15-AC162NL Pavilion 15-AY111TX Pavilion 15-ac184TU Pavilion 17-X114CY Pavilion 15-AY005TX Pavilion 15-AF046NB Pavilion 15-BA019NS Pavilion 14-AC116LA Pavilion 15-AY031CY Pavilion 15-AY052NC Pavilion 15-BA060NF Pavilion 17-Y028CY Pavilion 14-AM017NO Pavilion 15-AY071NL Pavilion 15-BA006DS Pavilion 17-X021NA Pavilion 15-AC011NK Pavilion 15-AY018NP Pavilion 15-AY111NX Pavilion 15-BA036NG Pavilion 15-AC174NA Pavilion 15q-aj006TX Pavilion 15-AC108NA Pavilion 15-AY049NE Pavilion 15-AY510UR Pavilion 15-BA105NG Pavilion 14-AR104TX Pavilion 14-AM101TX Pavilion 15-AC136UR Pavilion 15-ac126TU Pavilion 15-AY100NI Pavilion 15-BE109TX Pavilion 17-X032NA Pavilion 15-AC056UR Pavilion 15-AC666UR Pavilion 15-af118AU Pavilion 14-AC012NE Pavilion 15-AY147TU 250 G5-W4M41EA Pavilion 14-AF132AU Pavilion 15-AC122NIA Pavilion 15-AF152SA Pavilion 15-ac056TU Pavilion 17-Y001ND Pavilion 15-BA008NL Pavilion 15-AC160NK Pavilion 15-AC167NB Pavilion 15-AY119TU Pavilion 15-ac194TU Pavilion 17-X121NF Pavilion 15-AY006UR Pavilion 15-AF066SA Pavilion 15-BA021AX Pavilion 14-AC122TX Pavilion 14-AS002AX Pavilion 15-AY032NL Pavilion 15-AY058TU Pavilion 15-BA064NG Pavilion 17-Y032NG Pavilion 14-AM021NA Pavilion 15-AF127NF Pavilion 15-AY074NB Pavilion 15-BA007NH Pavilion 17-X013NO Pavilion 15-AC013NG Pavilion 15-AY019NQ Pavilion 15-AY113NS Pavilion 15-BA038UR Pavilion 15-AY161TX Pavilion 15-AC109NA Pavilion 15-AY050NX Pavilion 15-AY514TU Pavilion 15-BA113UR Pavilion 14-AM108NT Pavilion 15-AC138NX Pavilion 15-ac130TU Pavilion 15-AY101NI Pavilion 17-X003NG Pavilion 17-X036DS Pavilion 15-AC071NO Pavilion 15-AC685UR Pavilion 15-af127AU Pavilion 14-AC018TX Pavilion 15-AY157NS 250 G5-X0N55EA Pavilion 14-AM012NL Pavilion 17-x030ng Pavilion 14-af113au Pavilion 15-AY087CL Pavilion 15-AF139CA Pavilion 14-am007nv Pavilion 15Q-AJ104TX(P6M68PA) Pavilion 15-ba063ng Pavilion 14-AC103LA Pavilion 15-AY043CA Pavilion 15-AF074NR Pavilion 14-am002ne Pavilion 15-ba033ng Pavilion 14-ac108na Pavilion 15-AY020LA Pavilion 15-AF012NR Pavilion 15-ba054ng Pavilion 15-ba014nv Pavilion 14-ac006nx Pavilion 15-AY015DX

Replaces Part Numbers

807611-121 807611-131 807611-132 807611-141 807611-221 807611-241 807611-251 807611-421 807611-422 807611-831 807612-121 807612-131 807612-141 807612-221 807612-241 807612-251 807612-421 807612-422 807612-831 807956-001 807957-001 843532-851 843533-851 844197-850 852802-851 853295-850 HS03 HS03031-CL HS04 HS04041 HS04041-CL HS04XL HSTNN-DB7I HSTNN-IB7A HSTNN-LB6 HSTNN-LB6U HSTNN-LB6V HSTNN-PB6S HSTNN-PB6T LB6U M2Q95AA N2L85AA TPN-C125 TPN-C126

Technical Specifications

Voltage10.95V
Amp Hours2600mAh
Capacity2600mAh
Rate28.47Wh
Net Weight170g /6.00 oz
Gross Weight222g /7.83 oz
Approximate Weight222g /7.83 oz
Dimension 274.10 x 39.50 x 20.50mm

Product Highlights

  • Brand: HP
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

HP Support Assistant is showing the wrong Wh rating after I put in the new battery — it says something different from what I ordered. Is the cell wrong?

The Wh figure shown in HP Support Assistant is pulled from the EEPROM on the new cell, which stores the rated chemistry capacity, not the measured capacity under your specific load. A 28.47Wh cell can display a slightly different value depending on which firmware version reads it and how the EEPROM was written at the factory. This is a reporting difference, not a capacity defect. Check the OEM part number on the label against the product listing — if it matches (807611-121 or any HS03/HS04 variant), the cell is correct.

The fuel gauge is jumping around — goes from 60% to 40% in minutes, then stays stuck for a long time. What's going on?

The fuel gauge IC on these Pavilion boards stores a learned discharge curve from the old cell. When a new cell goes in, that stored curve no longer matches the actual voltage-to-capacity profile, so the percentage reading is unreliable. The IC needs two or three full calibration cycles to build an accurate map. Run the laptop on battery from 100% down to hibernate cutoff, then charge to 100% without interruption — repeat this twice and the gauge stabilises.

My Pavilion charges fine but stops at 80% and won't go higher. Is this a fault with the replacement cell?

No — HP Pavilion notebooks include a BIOS-level charge limit called "Optimised Battery Charging" or a similar adaptive charge mode. When enabled, the BIOS instructs the charger to stop at 80% to reduce long-term cell stress. The replacement cell is not causing this. Open HP Support Assistant, go to Battery settings, and disable the adaptive charging or charge limit option. The pack will then charge to 100% on the next cycle.

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