Fujitsu FPCBP65 LifeBook C2210 Replacement Battery 14.4V 4400mAh

Fujitsu LifeBook C2210 Series — 14.4V Li-ion Replacement Battery (FPCBP65)

This is a 14.4V, 4400mAh (63.36Wh) Li-ion battery that replaces the FPCBP65 and FPCBP65AP cells in the Fujitsu LifeBook C2210, C2220, C2230, and C2240 notebooks. It restores portable operation when the original cell has degraded past usable capacity. Voltage, connector, and BMS communication protocol match the original Fujitsu specification.

• LifeBook C2210–C2240 platform fit: These four models share the same 14.4V battery bay, connector pinout, and FPCBP65 part number. The BMS handshake protocol is identical across the series, so one cell works across all four without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a C2210 unit. The BMS accepted the cell, reported state-of-charge correctly after two calibration cycles, and held voltage under CPU and display load without triggering a premature cutoff.
• Post-install calibration on the C2210: After fitting this battery, run one full discharge to hibernate-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 on this platform.

Why the LifeBook C2210 reports poor battery health immediately after a cell swap

The C2210 BIOS reads health data stored in the old cell's EEPROM during every boot. When a new cell installs, that EEPROM contains either stale data or values the BIOS does not yet recognise. The system flags this as a fault — not because the new cell is defective, but because no learn cycle has run yet. One full discharge-to-hibernate followed by an uninterrupted charge to 100% writes fresh data into the learn cycle and clears the warning. After two to three cycles, the health indicator stabilises to reflect actual cell condition.

LifeBook C2210 shutting down at 20–30% battery shown

This happens when the cell cannot sustain voltage under combined CPU and display load — the cell voltage drops below the BMS cutoff threshold before the fuel gauge reaches zero. On the C2210, this usually means the fuel gauge IC has not yet calibrated against the new cell's discharge curve. Run two full discharge cycles to hibernate-cutoff without interruption. After recalibration, the gauge tracks the actual voltage cliff and the early shutdown stops. If it persists beyond three full cycles, check that the charger is delivering the correct 16V input.