We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular lithium-ion laptop battery with connector pins and label showing model FPCBP412 14.4V 45Wh

KingSener

KingSener FPCBP412 laptop battery 14.4V 45Wh for Fujitsu LifeBook

SKU CH-JXKP-G6ZDD MPN FPCBP412

Replacement 14.4V 45Wh lithium-ion battery restores runtime for compatible Fujitsu LifeBook models

  • Battery TypeLi-ion
  • Battery Voltage14.4V
  • Battery Capacity3150mAh/45Wh
  • 45Wh capacity powers longer mobile sessions
  • 4V 3150mAh Li-ion cells deliver stable output
  • Direct replacement fits Fujitsu LifeBook FPB0305S U904-0M75A1DE U9040MXPB1DE
  • 100% brand-new construction with quality PCB
  • No false capacity — full charge meets or exceeds design rating

Direct replacement for Fujitsu LifeBook

The KingSener FPCBP412 is a 14.4V lithium-ion battery rated at 45Wh and 3150mAh. It matches the original FPB0305S and U904 series part numbers for a direct fit. Buyers who need a different voltage or a higher capacity will not be served by this model.

No bundled accessories or software

The package contains only the battery itself; there are no cables, tools or driver discs included. Installation relies on the existing laptop latch and connector. Users who expect a screwdriver kit or a calibration utility must source those separately.

Simple swap-in installation

The unit is the same physical size as the original, so it seats in the bay without modification. Align the connector, press until the latch clicks, then follow the supplier tip to fully charge and discharge two or three cycles. Avoid leaving the AC adapter connected continuously and do not store the pack in hot or humid conditions.

Highlights

  • 45Wh capacity powers longer mobile sessions
  • 4V 3150mAh Li-ion cells deliver stable output
  • Direct replacement fits Fujitsu LifeBook FPB0305S U904-0M75A1DE U9040MXPB1DE
  • 100% brand-new construction with quality PCB
  • No false capacity — full charge meets or exceeds design rating

Specifications

BrandKingSener
ModelFPCBP412
Part NumberFPCBP412
FPB0305S
Battery TypeLi-ion
Battery Voltage14.4V
Battery Capacity3150mAh/45Wh

Questions about this item

How often should the Li-ion cells be cycled to maintain the 45Wh capacity?

Fully charge and discharge from low current two or three times when new, then recharge to at least 80 percent once a month during long storage.

What voltage sag appears first when the 14.4V pack runs demanding workloads continuously?

The 3150mAh rating is measured at standard discharge rates; heavy sustained loads will pull the terminal voltage below 14.4V before thermal limits are reached.

Does the black replacement pack run hot or loud during all-day use in a LifeBook U904?

The battery has no moving parts and generates minimal heat; normal operation stays warm to the touch, while the laptop's own cooling system handles any system-level thermal load.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.