Quick tech specs
  • 1BRS-ER
  • lithium ion
  • 5200 mAh
  • for Satellite R850; Satellite Pro R850
  • S850; Tecra R850
  • Notebook battery (equivalent to: Toshiba PA3905U-1BRS)
  • 6-cell
  • black
  • R950
  • R950
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Know your gear

This new compatible Battery by eReplacements is 100% compatible with your original battery. eReplacements batteries will meet or exceed the original battery specifications. They are manufactured for high performance in the ISO 9000 factories using the best quality cells and most up to date safety and engineering control standards such as High/low temperature shut off protection, thermal runaway protection, overcharge shut off protection, discharge shut off protection, cell imbalance shut off protection, fire resistant plastic casing. They are manufactured using the most up to date TI chip set. Thousands of resellers, dealers and service companies over the years have trusted eReplacements to provide their customers with quality replacement batteries.

This item was discontinued on July 15, 2022

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Customize your gear

As you assemble your hardware, configurable options may change or become unavailable.

Better Together

eReplacements Premium Power Products PA3905U-1BRS-ER - notebook battery - L
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