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Rectangular black lithium-ion battery pack with label showing 10.8V 4400mAh

Dr. Battery

Dr. Battery PABAS277 laptop battery 10.8V 4400mAh for Toshiba Portege R30 R30-A

SKU CH-N9WW-CXSBG

Replaces original Toshiba Portege R30 series batteries with a 10.8V 4400mAh Li-ion pack featuring over-charge, over-discharge, overheating and short-circuit protection

  • TypeBattery
  • CompatibilityToshiba Portege R30 Series / Toshiba Portege R30-A Series
  • Battery TypeLi-ion
  • Battery Voltage10.8V
  • Battery Capacity4400 mAh
  • FunctionNotebook
  • Restores reliable power for Toshiba Portege R30 Series
  • 4400 mAh Li-ion capacity supports extended mobile use
  • 8V output matches original battery specifications
  • Built-in protection guards against over-charge and short-circuit
  • Compatible with PA5161U-1BRS, PA5162U-1BRS and other OEM part numbers

Replacement battery for Portege R30

This Dr. Battery Professional Series unit restores power to Toshiba Portege R30 and R30-A series laptops. It is built with OEM-grade lithium-ion cells rated at 10.8V and 4400 mAh. The pack targets professionals and everyday users who need dependable runtime for business productivity.

Voltage and capacity match original specs

The single specification that decides fit is the 10.8V 4400 mAh rating, which matches the original PA5161U-1BRS, PA5162U-1BRS, PA5163U-1BRS and PA5174U-1BRS packs. Buyers whose laptop requires a different voltage or a higher capacity cell will not be served by this part.

Simple swap with latch release

Installation requires sliding the old pack out and clicking the new one into the battery bay until the latch engages. No tools or cable routing are involved. The common mistake is ordering this pack for a Portege model outside the R30 or R30-A series, which have different connector keying and physical dimensions.

Highlights

  • Restores reliable power for Toshiba Portege R30 Series
  • 4400 mAh Li-ion capacity supports extended mobile use
  • 8V output matches original battery specifications
  • Built-in protection guards against over-charge and short-circuit
  • Compatible with PA5161U-1BRS, PA5162U-1BRS and other OEM part numbers

Specifications

BrandTOSHIBA
ModelToshiba Portege R30 Series / Toshiba Portege R30-A Series
Part NumberDR-PRO-LTS252-B
TypeBattery
CompatibilityToshiba Portege R30 Series / Toshiba Portege R30-A Series
Battery TypeLi-ion
Battery Voltage10.8V
Battery Capacity4400 mAh
FunctionNotebook
Dimension8.0x1.5x0.8
Weight0.4

Questions about this item

What does the 10.8 V 4400 mAh rating mean for daily use on a Portege R30?

It supplies 10.8 V at up to 4400 mAh, matching the original specification so the laptop runs its normal workload without voltage mismatch.

Which connector standard does the PABAS277 use and what does it limit?

It uses the proprietary Toshiba battery interface keyed to part numbers PA5161U-1BRS, PA5162U-1BRS, PA5163U-1BRS and PA5174U-1BRS, so it only fits Portege R30 and R30-A models.

Will the 8.0 x 1.5 x 0.8 cm pack fit the R30-A battery bay without modification?

Yes, the 8.0 x 1.5 x 0.8 cm form factor matches the original bay dimensions and the latch points align with the factory slots.

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