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Black rectangular lithium-ion laptop battery with connector visible

NShi

NShi PA5189U-1BRS 14.4V 60Wh laptop battery

SKU CH-DSQ8-4MME5

Lithium-ion replacement battery delivering 14.4 V and 60 Wh for compatible Toshiba Satellite P55W and P50W models

  • Battery TypeLithium Polymer
  • 4 V lithium-ion chemistry delivers 60 Wh of runtime
  • 3860 mAh capacity keeps compatible Toshiba Satellite models running longer
  • Replaces part numbers PA5189U-1BRS and PA5187U-1BRS directly
  • Fits Satellite P55W-B, P55W-B5224 and P50W-B series laptops
  • New battery activates after 3 to 4 full charge cycles

Replacement battery for Satellite P55W series

This lithium-polymer battery replaces part number PA5189U-1BRS in compatible Toshiba Satellite P55W-B, P55W-B5224 and P50W-B models. It delivers 14.4V and 60Wh capacity for mobile work and study sessions. The unit is supplied new and ready for installation.

Check connector and part number before ordering

Verify that the existing battery carries part number PA5189U-1BRS or PA5187U-1BRS and compare the connector layout to the product images. Factory variations can change cable length and interface shape even within the same laptop family. A physical match avoids fitment issues after delivery.

Thermals noise and power in normal use

Lithium-ion chemistry runs silently with no moving parts and produces minimal heat during typical charge and discharge cycles. The 60Wh rating supports extended unplugged runtime under standard productivity loads. Calibrate by discharging to 5% then charging fully three to four times to stabilise capacity reporting.

Highlights

  • 4 V lithium-ion chemistry delivers 60 Wh of runtime
  • 3860 mAh capacity keeps compatible Toshiba Satellite models running longer
  • Replaces part numbers PA5189U-1BRS and PA5187U-1BRS directly
  • Fits Satellite P55W-B, P55W-B5224 and P50W-B series laptops
  • New battery activates after 3 to 4 full charge cycles

Specifications

Battery TypeLithium Polymer

Questions about this item

Does the PA5189U-1BRS battery come with any tools or cables, or must they be bought separately?

The battery ships alone; no tools, cables or brackets are included, so reuse the screws and connector from the original pack.

The listing shows two compatible part numbers — PA5189U-1BRS and PA5187U-1BRS — how do I decide which one matches my machine?

Both numbers refer to the same 14.4 V 60 Wh pack; check the label on your old battery and order the number printed there.

What does the 60 Wh rating actually deliver in a Satellite P55W-B during everyday use?

At 14.4 V and 3860 mAh the pack stores 60 Wh, which typically powers a P55W-B for several hours of mixed office work before needing a recharge.

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