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Fujitsu LifeBook T732 Replacement Battery FPCBP373 10.8V 6600mAh

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From $143.99 USD $173.99
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Fits Fujitsu LifeBook T732, T734, T902 laptops; replaces OEM part FPCBP373 and FMVNBP222.
10.8V, 6600mAh capacity delivers full charge cycles on the T732 ultrabook without voltage sag.
Connector slides into the battery bay with a single locking tab; orientation marked on the cell.
We ran a full discharge-to-hibernate and recharge cycle; the BMS settled voltage within spec on cycle two.
After installation, run one full discharge to hibernation, 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.

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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

10.8V

Amp

6600mAh

Fujitsu LifeBook T732 / T734 / T902 — 10.8V Li-ion Replacement Battery (FPCBP373)

This is a 10.8V, 6600mAh (71.28Wh) lithium-ion battery for the Fujitsu LifeBook T732, T734, and T902 convertible laptops. It replaces OEM part numbers FPCBP373 and FMVNBP222. The connector, cell count, and BMS handshake match the original Fujitsu specification for these three models.

  • T732, T734, and T902 compatibility: All three models share the same 10.8V three-cell-series architecture, identical battery bay dimensions, and the same BMS communication protocol over the SMBus line. One cell fits all three without modification.
  • Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on a LifeBook T732. The BMS reported correct voltage at each stage, charge termination triggered at the expected 12.6V ceiling, and the SMBus handshake returned accurate state-of-charge data to the OS.
  • Post-install calibration on the T732/T734/T902: After fitting this cell, run a full discharge until the laptop hibernates, then charge uninterrupted to 100% without using the machine. This forces the BIOS battery learn cycle to reset against the new cell's capacity curve and clears the false low-health warning that appears after any cell swap on these models.

BIOS reporting poor battery health immediately after fitting a new cell

The LifeBook BIOS stores battery health data in EEPROM and compares it against the previous cell's charge history on every boot. A brand-new cell has no stored cycle data, so the BIOS flags it as degraded — the reading is wrong, not the hardware. One complete discharge-to-hibernate followed by a full uninterrupted charge resets the learn cycle. After two to three full cycles, the BIOS health indicator should resolve to a normal reading.

Laptop shuts down with 20–30% charge still showing on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. Under combined CPU and display load, voltage drops faster than the uncalibrated gauge predicts, and the BMS trips the low-voltage cutoff before the displayed percentage reaches zero. It is not a fault with the cell. Run two full discharge-to-hibernate cycles and the fuel gauge IC will map the new cell's voltage profile accurately. After calibration, the cutoff should align with a display reading below 5%.

Compatible Models

LifeBook T732 LifeBook T734 LifeBook T902

Replaces Part Numbers

FPCBP373 FMVNBP222

Technical Specifications

Voltage10.8V
Amp Hours6600mAh
Capacity6600mAh
Rate71.28Wh
Net Weight328g /11.57 oz
Gross Weight598g /21.09 oz
Approximate Weight598g /21.09 oz
Dimension 247.50 x 60.68 x 20.75mm

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

My LifeBook T732 shows the wrong Wh rating in the battery report after fitting this cell — it still shows the old battery's numbers. Is something wrong with the new cell?

Nothing is wrong with the cell. The Wh figure shown in Windows or the BIOS comes from EEPROM data written to the battery's fuel gauge IC, not a live measurement. A new cell ships with its rated chemistry spec encoded, which can differ from whatever the old cell had logged over its lifetime. Run the battery learn cycle — full discharge to hibernate, then uninterrupted charge to 100% — and the reported Wh figure will update to match the actual cell rating of 71.28Wh.

The T734 fuel gauge jumps around wildly for the first few charges — sometimes it reads 80%, then jumps to 45%, then back up. What is causing this?

The fuel gauge IC on these Fujitsu models calibrates itself against charge and discharge data accumulated over several cycles. On a fresh cell, it has no reference curve, so the state-of-charge estimate swings unpredictably under varying loads. This is not a fault. Run two to three complete discharge-to-hibernate and full-charge cycles without interrupting the charge phase, and the gauge will settle to accurate readings.

This replacement battery stopped charging above 80% on the T902. The laptop has been plugged in for hours and it just stays at 80%.

The T902 BIOS includes a charge-limit feature that caps charging at 80% when it is enabled — this is a firmware setting, not a cell fault. Open the Fujitsu Battery Utility (or access it through the system tray icon if installed) and check whether the "80% charge limit" or eco-charge mode is turned on. Disable it, unplug and replug the AC adapter, and the charge will resume to 100%.

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