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Black rectangular lithium-ion laptop battery with label showing 11.4V 48Wh

Beisite

Beisite PA5353U-1BRS laptop battery 11.4V 48Wh for Toshiba Dynabook Tecra X50 X50-F

SKU CH-W7WB-G4NV4

11.4V 48Wh lithium-ion replacement battery for Toshiba Dynabook Tecra X50 and X50-F series laptops

  • Battery typeLithium-Ion
  • Battery voltage rating11.4 V
  • Battery capacity48 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor Toshiba Dynabook Tecra X50 X50-F Series
  • Ready-to-install replacement for Tecra X50 series
  • 48 Wh lithium-ion cell delivers reliable mobile power
  • 4 V output matches original factory specification
  • Replaces part numbers PA5353U-1BRS and 31CP5/94/68
  • Brand-new condition with 12-month supplier warranty

Compatible replacement battery

This lithium-ion battery replaces the original PA5353U-1BRS unit in Toshiba Dynabook Tecra X50 and X50-F series laptops. It delivers the specified 11.4V and 48Wh capacity in a black housing. The pack is new and carries a 12-month warranty from the supplier.

Upgrading from a depleted original

When the factory cell no longer holds a useful charge, this direct-fit replacement restores the notebook's rated runtime without firmware or hardware changes. The swap is worthwhile once the original battery drops below roughly half of its design capacity or shows swelling.

Capacity and runtime headroom

The 48Wh rating supports typical office workloads for several hours on a full charge. Heavy multi-core tasks, maximum screen brightness or attached peripherals will reduce that window noticeably. Users who regularly need all-day mobility away from mains power may find the single pack insufficient.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $64.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand namePA5353U-1BRS
Model namePA5353U-1BRS
Part number31CP5/94/68
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.4 V
Battery capacity48 Wh
Compatibility
Compatible withFor Toshiba Dynabook Tecra X50 X50-F Series

Questions about this item

Does the 11.4 V, 48 Wh battery fit the existing bay on a Tecra X50-F without modification?

Yes, the PA5353U-1BRS is a direct replacement for the original 31CP5/94/68 pack and matches the Tecra X50 and X50-F chassis exactly.

What is the correct order to connect the internal connector when swapping the battery on a Tecra X50?

Power off the laptop, disconnect the AC adapter, remove the base cover, unplug the old battery connector first, then plug in the new PA5353U-1BRS connector before refitting the cover.

When should the 48 Wh lithium-ion pack be replaced?

Replace the battery when run time falls well below the original level or after the 12-month warranty period if capacity loss affects daily use.

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