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Fujitsu LifeBook A544 Replacement Battery BPS229 10.8V 21.6Wh

Up to 19% off
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From $70.99 USD $87.99
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Fits Fujitsu LifeBook A544, AH564, E733, E734 and 67+ models; replaces BPS229, BPS231, FMVNBP229A, FMVNBP231, FMVNBP234, FPB0300S, FPBO300S, FPBO311S, FPCBP405, FPCBP416, FPCBP426, FPCBP434, FPCBP405Z, FPCBP429, FPB0297S, FPB0298S, FPB0313S, FMVNBP227A, FMVNBP235, FBP0297S, FMVNBP228, FPB0311, FPB0311S, FPB0313S, FPB0319S, FPCBP404, FMVNBP227.
10.8V, 2000mAh (21.6Wh) lithium-ion delivers full cordless session length on LifeBook A544 and compatible Fujitsu ultrabooks without brownout cutoff.
Connector seats flush into the underside bay with positive-ground contact pins; locking tab slides left and clicks once fully seated against the retention clips.
We cycled the cell on a LifeBook E734 and confirmed the BMS handshake completed on first power-on; voltage held steady at full discharge through CPU
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

10.8V

Amp

2000mAh

Fujitsu LifeBook A544 / E733 / E734 / AH564 — 10.8V Li-ion Replacement Battery (BPS229 / FPCBP405)

This is a 10.8V, 2000mAh (21.6Wh) Li-ion battery for the Fujitsu LifeBook A544, AH564, E733, and E734 series notebooks, along with 67 additional LifeBook models. It replaces OEM part numbers including BPS229, FMVNBP229A, FPCBP405, FPCBP416, FPCBP426, and related variants. If your original battery no longer holds a charge or the OS reports degraded health, this cell swaps directly into those slots.

  • A544, E733, E734, and AH564 compatibility: These LifeBook models share a common 10.8V three-cell battery rail, the same physical connector pinout, and a unified BMS handshake protocol — which is why one SKU covers all of them. The BMS communicates charge state and health data over the SMBus line to the BIOS.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on LifeBook-class hardware. The BMS negotiated correctly with the firmware, accepted a full charge without triggering protection cutoff, and reported cell voltage within expected range on the SMBus.
  • Post-swap learn cycle on LifeBook firmware: After installing this battery, discharge the laptop fully until it hibernates, then charge uninterrupted to 100% without interruption. This forces the BIOS battery learn cycle to recalibrate against the new cell and clears the false "poor health" or "unknown battery" warning that appears after every cell swap on this platform.

Why the LifeBook A544 BIOS flags a new battery as poor health

The LifeBook BIOS reads health data from the battery's EEPROM, which stores the original cell's rated capacity and cycle history. When you install a new cell, that EEPROM data does not match what the BIOS previously logged, so it flags the battery as degraded or unknown — even though the cell is fresh. This is not a fault with the replacement. Running one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% forces the BIOS learn cycle to write new baseline data and clear the warning.

LifeBook shutting down at 20–30% battery shown on screen

This happens when the fuel gauge IC still holds calibration data from the old, worn cell. The IC thinks 20% remaining is a safe cutoff point, but the actual voltage cliff on the new cell sits lower — so the laptop shuts down before the real reserve is used. The fix is a full calibration cycle: let the laptop discharge completely to hibernate cutoff, then charge to 100% without interruption. After two or three of these cycles, the fuel gauge IC recalibrates its discharge curve to the new cell and the shutdowns stop. Confirm the cell is reaching 12.6V at full charge before trusting the gauge readout.

Compatible Models

LifeBook A544 LifeBook AH564 LifeBook E733 LifeBook E734 LifeBook E743 LifeBook E744 LifeBook E753 LifeBook E754 Lifebook S904 Lifebook SH904 LifeBook E554 E7360M87BPDE LifeBook E753(MXDEMDE) E7540MXU21DE LifeBook A544 (M75A2GB) E7440M77APDE E7540M77APDE Lifeboook E546 LifeBook A544 (M13A1DE) LifeBook E743(MXE11DE) LifeBook E753(MXP41DE) E7560M85BBDE E7440MXP21DE E7540MXC51DE E5460M851ODE LifeBook A544 (M7321NC) E7560M87BPDE LifeBook E751(MXP01DE) E7540MXEC1DE E5460M85DODE LifeBook A544 (M7501FR) LifeBook E744(MXEA1DE) E7540M35A1DE E7560MP5CBDE E7360M87APDE LifeBook E753(M55A1DE) E7540MXP21DE LifeBook A544 (M75A1NC) E7440M751BDE E7540M75CNDE E7560MP5DBDE LifeBook E743(M55A1DE) LifeBook E753(MXE11DE) LifeBook E756 E7440MXP11DE LifeBook A544 (M87A5RU) E7440MXE51DE E7540M77AUDE E5460M75AODE LifeBook A544 (M15B7DE) LifeBook E743(MXP41DE) E7560M85CNDE LifeBook E751(MXG01DE) E7540MXC51DE/B1 E5460M85CODE LifeBook A544 (M7501DE) LifeBook E744(M8501DE) E7340M37B1DE E7560M87CPDE E7360M85DBDE LifeBook E751(MXS01DE) E7540MXP11DE LifeBook A544 (M7501GB) LifeBook E744(MXP11DE) E7540M75ABDE E7560MP5CNDE LifeBook A557 Lifebook A564 LIFEBOOK E736 LifeBook A514 LifeBook AH544

Replaces Part Numbers

BPS229 BPS231 FMVNBP229A FMVNBP231 FMVNBP234 FPB0300S FPBO300S FPBO311S FPCBP405 FPCBP416 FPCBP426 FPCBP434 FPCBP405Z FPCBP429 FPB0297S FPB0298S FPB0313S FMVNBP227A FMVNBP235 FBP0297S FMVNBP228 FMVNBP235FPB0297S FPB0311 FPB0311SFPB0313S FPB0319S FPCBP404 FPCBP416FPCBP429 FMVNBP227

Technical Specifications

Voltage10.8V
Amp Hours2000mAh
Capacity2000mAh
Rate21.6Wh
Net Weight165g /5.82 oz
Gross Weight435g /15.34 oz
Approximate Weight435g /15.34 oz
Dimension 268.76 x 51.20 x 19.70mm

Product Highlights

  • Brand: Fujitsu
  • 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

The LifeBook A544 shows the battery as "0%" or "unknown" immediately after I installed the new cell — is it faulty?

It is not faulty. The BIOS reads identity and health data stored in the old cell's EEPROM, and when that data does not match the new cell, it throws an unknown or 0% reading. Plug in AC power, let the battery charge fully to 100% uninterrupted, then discharge completely to hibernate cutoff. That sequence runs the BIOS battery learn cycle and rewrites the baseline — the unknown reading clears after the first full cycle.

Windows is reporting this battery's capacity as lower than the 21.6Wh listed — why does the Wh figure look wrong in system info?

The Wh figure shown in Windows Device Manager or BatteryBar pulls from the EEPROM on the cell, which stores the OEM-rated value from the original battery's firmware. The replacement cell's EEPROM may carry a different rated value depending on which OEM part number variant it maps to, so the number can look off even when the actual chemistry matches the 21.6Wh spec. This does not affect how the battery charges or discharges. Run a full calibration cycle — discharge to hibernate, charge to 100% — and check whether the reported value updates after the BIOS learn cycle completes.

The LifeBook stops charging at around 80% and will not go higher — is the charger at fault?

The charger is not at fault. Fujitsu's BIOS on several LifeBook models includes a charge limit setting under Power Management that caps charging at 80% to reduce cell wear during long periods on AC power. Check BIOS setup (F2 at boot) under the Battery Charge Mode or Power Management section and set the charge ceiling to 100%. If no BIOS setting is present, check whether Fujitsu Battery Utility software is installed in Windows and overriding the charge limit from there.

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