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HP EliteBook 848 G4 Compatible Battery 11.55V 4100mAh

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From $65.99 USD $81.99
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Fits HP EliteBook 848 G4 (1LH18PC) and replaces OEM part 854047-1C1.
11.55V at 4100mAh delivers 47.36Wh — matches original capacity for full session runtime.
Connector seats into bottom chassis slot with locking tab on left side.
Bench test confirmed BMS accepted charge cycle without fault codes or cutoff anomalies.
Run one full discharge to hibernation, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings that appear after 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.

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

4100mAh

HP EliteBook 848 G4 — 11.55V Li-Polymer Replacement Battery (854047-1C1)

This 11.55V, 4100mAh (47.36Wh) lithium-polymer battery replaces the original pack in the HP EliteBook 848 G4 (1LH18PC) and a broad range of HP EliteBook 840 G4 and ZBook 14u/15u G4 notebooks. It matches the OEM connector, cell count, and BMS handshake required by HP's power management firmware. Cross-reference part numbers include 854047-271, TA03XL, HSTNN-IB7L, and HSTNN-LB7J.

  • EliteBook 840/848 G4 and ZBook 14u/15u G4 platform fit: These models share a common three-cell Li-Polymer architecture, the same 7.00mm-profile battery bay, and an identical BMS communication line. One cell SKU covers the full G4 generation because HP standardised the voltage rail and SMBUS protocol across this chassis family.
  • Bench tested on actual hardware: We cycled this cell through charge, discharge, and idle states on an EliteBook 840 G4 host. The BMS completed authentication without error, the fuel gauge IC registered full capacity, and HP Support Assistant reported the cell as healthy with no fault codes logged.
  • Post-install calibration cycle: After fitting this cell, discharge the laptop normally until it hibernates at low battery, then charge uninterrupted to 100% without interruption. This single full cycle lets the BIOS battery-learn routine re-map the new cell's actual capacity curve and clears the inaccurate health warning that appears immediately after any cell swap.

BIOS reporting poor battery health immediately after replacement

HP's embedded controller reads cycle count, rated Wh, and state-of-health data stored in the cell's EEPROM when a new battery is first seated. Because those EEPROM values reflect a fresh cell with zero history, the controller sometimes flags a mismatch against the previous battery's learned profile and marks health as "poor" or "check battery." This is a firmware calibration state, not a defective cell. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100%. After that cycle, HP Support Assistant should show health status as normal and report the rated 47.36Wh.

Laptop shuts 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 discharge curve. The gauge estimates remaining capacity from a model built on the old cell, so it loses accuracy near the bottom of the charge window and the laptop hits the BIOS low-voltage cutoff before the displayed percentage reaches zero. The fix is the same calibration cycle: let the machine discharge until Windows hibernates, then charge fully to 100% without interruption. After two or three full cycles the gauge re-maps the curve and the shutdown threshold tracks correctly down to approximately 3.5V per cell.

Compatible Models

ELITEBOOK 848 G4(1LH18PC) Elitebook 840 G4-Z2V47EA ZBook 14u G4 1RQ70EA Zbook 15u G4(Y6K02EA) ELITEBOOK 840 G4(1LH11PC) Elitebook 840 G4-Z9G72AW Zbook 15u G4(1BS32UT) ELITEBOOK 848 G4(1MX92PC) Elitebook 840 G4-Z2V48EA EliteBook 755 G4 Z2W11EA ZBook 14u G4(2FH00AW) EliteBook 755 G4(Z2W12EA) Zbook 15u G4(1BS34UT) ELITEBOOK 848 G4(1LH12PC) Elitebook 840 G4-Z2V68EA EliteBook 755 G4 Z9G45AW Elitebook 840 G4-1EN04EA ZBook 14u G4 1RQ68EA Zbook 15u G4(Y6K00EA) ELITEBOOK 840 G4(1LH09PC) Elitebook 840 G4-Z9G66AW Elitebook 840 G4-1EP61EA ZBook 14u G4 1RQ69EA Zbook 15u G4(Y6K01EA) ELITEBOOK 840 G4(1LH16PC) Elitebook 840 G4-Z9G70AW Zbook 15u G4(1BS31UT) ELITEBOOK 848 G4(1NC59PC) Elitebook 840 G4-Z2V47ET ZBook 14u G4 1RQ82EA Zbook 15u G4(Z9L67AW) Zbook 15u G4(1BS33UT) ELITEBOOK 848 G4(1LH17PC) Elitebook 840 G4-Z2V49EA EliteBook 755 G4 Z2W12EA EliteBook 840R G4 EliteBook 840 G4-Z2V49ET Elitebook 840 G4-1EN01EA ZBook 14u G4 Zbook 15u G4(Y6J99EA) ELITEBOOK 848 G4(1LH13PC) Elitebook 840 G4-Z2V68ET EliteBook 755 G4 Z9G47AW EliteBook 850 G4-Z2W86ET Elitebook 840 G4-1EN50EA ZBook 14u G4 1RQ67EA Zbook 15u G4(Y6K00ET) ELITEBOOK 840 G4(1LH14PC) Elitebook 840 G4-Z9G68AW EliteBook 745 G4 Z2W06EA mt43 ELITEBOOK 848 G4 ZBook 15u G4 EliteBook 755 G4 EliteBook 745 G4 EliteBook 850 G4 EliteBook 840 G4 Elitebook 840 G41EN50EA Elitebook 840 G4Z9G66AW Elitebook 840 G4Z2V47EA Elitebook 840 G4Z9G70AW Elitebook 840 G4Z2V48EA EliteBook 840 G4Z2V49ET Elitebook 840 G41EN04EA Elitebook 840 G4Z2V68ET Elitebook 840 G41EP61EA Elitebook 840 G4Z9G68AW Elitebook 840 G4Z2V47ET Elitebook 840 G4Z9G72AW Elitebook 840 G4Z2V49EA Elitebook 840 G41EN01EA Elitebook 840 G4Z2V68EA

Replaces Part Numbers

854047-1C1 854047-271 854108-850 996QA101H HSTNN-172C-4 HSTNN-175C-5 HSTNN-I72C-4 HSTNN-I75C-5 HSTNN-IB7L HSTNN-LB7J TA03051XL TA03XL TAO3XL 854047-141 854047-171 854047-221 854047-2C1 854047-421 HSTNN-1B7L TA03051XL-PL

Technical Specifications

Voltage11.55V
Amp Hours4100mAh
Capacity4100mAh
Rate47.36Wh
Net Weight217.8g /7.68 oz
Gross Weight357.8g /12.62 oz
Approximate Weight357.8g /12.62 oz
Dimension 198.56 x 102.52 x 7.00mm

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 the wrong Wh rating after I put the new battery in — is the cell actually smaller than advertised?

No. The Wh figure HP Support Assistant displays is pulled from the cell's EEPROM, which ships with the OEM rated value encoded at manufacture. If the number shown differs slightly from 47.36Wh, it reflects a rounding difference between the EEPROM-stored design capacity and the actual chemistry — not a undersize cell. Run one full discharge-to-hibernate then charge uninterrupted to 100%. After that learn cycle the controller recalculates from live data and the displayed Wh figure stabilises.

My EliteBook charges to about 80% and then stops — is the battery faulty or is the charger the problem?

Neither. HP's BIOS includes a battery charge limit feature — sometimes labelled "Maximise Battery Health" or "Adaptive Battery Optimiser" in HP UEFI settings or HP Command Center. When active, it deliberately caps charging at 80% to reduce cell stress. Open HP UEFI (F10 at POST), navigate to Power Management, and set the charge limit to 100% if you need full capacity. This is a firmware-controlled setting, not a fault in the cell or the adapter.

The fuel gauge jumped from 60% to 10% in seconds during a video call — why is it so inaccurate on a brand new battery?

The fuel gauge IC inside the laptop builds its capacity model from data on the old cell over many discharge cycles. On a new cell it has no valid reference, so the percentage estimate drifts badly under variable CPU and display loads — a sustained load spike during a video call exposes that gap instantly. The gauge corrects itself after two or three complete discharge-to-hibernate and full-charge cycles, which give the IC enough data points to map the new cell's voltage-versus-capacity curve. After calibration, mid-session percentage drops of more than a few percent under normal load should stop.

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