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Black rectangular laptop battery with four cells and label showing model details

NShi

NShi FPB0338S laptop battery 14.4V 3490mAh 50Wh 4 cell black

SKU CH-ECPN-E7GKZ

Replacement 14.4V 50Wh 4-cell lithium-ion battery for Fujitsu Lifebook E548, E558, T937, T938, U747, U748, U757 and U758

  • ColorBlack
  • TypeBattery
  • CompatibilityFujitsu Lifebook E548, E558, T937, T938, U747, U747(CP743229
  • Battery Type4 Cell Lithium-Ion
  • Battery Voltage14.4V
  • Battery Capacity3490mah
  • Replaces multiple OEM part numbers including FPB0338S and FPCBP531
  • Fits Fujitsu Lifebook E548, E558, T937, T938 and U747 models
  • 4V 50Wh capacity delivers extended runtime for daily workloads
  • Four-cell lithium-ion design balances power density with portability
  • CE, FCC and RoHS certified for electrical safety compliance

Direct replacement for Fujitsu Lifebook models

This 14.4V lithium-ion battery replaces the original FPCBP531 and compatible part numbers for Fujitsu Lifebook E548, E558, T937, T938, U747, U748, U757 and U758. It is a new GreenTech unit built to match the OEM voltage and connector layout.

50Wh capacity restores original runtime

The 3490mAh four-cell pack delivers 50Wh, matching the factory energy rating so the laptop runs as long as it did with the genuine battery. CE, FCC and RoHS certifications confirm the protection circuitry meets safety standards for voltage regulation and low self-discharge.

Four-cell design limits maximum runtime

At 50Wh the pack handles typical office workloads and light travel use, but heavier multi-tasking or high-brightness settings will drain it faster than higher-capacity six or nine-cell alternatives. Buyers needing all-day autonomy without recharging should consider a larger battery if the chassis allows it.

Highlights

  • Replaces multiple OEM part numbers including FPB0338S and FPCBP531
  • Fits Fujitsu Lifebook E548, E558, T937, T938 and U747 models
  • 4V 50Wh capacity delivers extended runtime for daily workloads
  • Four-cell lithium-ion design balances power density with portability
  • CE, FCC and RoHS certified for electrical safety compliance

Specifications

BrandGreenTech
ModelFPB0338S, CP721834-01, CP734928-01, FMVNBP247, FMVNBP248, FPCBP531, FPCBP531AP
ColorBlack
TypeBattery
CompatibilityFujitsu Lifebook E548, E558, T937, T938, U747, U747(CP743229), U748, U757, U757(CP743228), U758
Battery Type4 Cell Lithium-Ion
Battery Voltage14.4V
Battery Capacity3490mah

Questions about this item

How many charge cycles before the 14.4V 3490mAh pack needs replacement?

The 4-cell lithium-ion battery is tested for stable current and low self-discharge, with CE/FCC/RoHS safety certification; typical service life varies by usage pattern.

What limits runtime first during continuous load on this 50Wh battery?

The 50Wh capacity and 14.4V output define the energy ceiling; sustained heavy draw depletes the 3490mAh cells until the built-in circuit protection triggers.

Does the FPB0338S get hot or draw extra power when the laptop runs all day?

Rigorous testing confirms correct voltage, circuit protection and stable current; the pack is designed for low self-discharge and safe thermal behaviour under normal operation.

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