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Rectangular black lithium-polymer laptop battery with label showing 4400mAh 10.8V

NShi

NShi 4400mAh 10.8V Li-ion laptop battery for Toshiba Portege M200 M400 Tecra M4 M7

SKU CH-4TMT-PCEG2

Replacement lithium-ion battery rated at 4400mAh and 10.8V for select Portege and Tecra models

  • Battery TypeLithium Polymer
  • 4400mAh capacity delivers 47.52Wh runtime for extended mobile use
  • 8V lithium polymer cell matches original voltage for stable power delivery
  • Certified to ISO9001 RoHS CE UN38.3 and MSDS standards for safety assurance
  • Fits Portege M200 M400 Tecra M4 M7 models and PA3128U PA3191U part numbers
  • Compact 126.45 x 69.67 x 20.2mm design weighs only 457.0g for easy installation

Compatible models and part numbers

This replacement battery fits the Portege M200-152, Tecra M7-118, Portege M400-S933 tablet PC and Tecra M4-107. It also matches original part numbers PA3128U-1BRS, PA3191U-4BAS, PA3191U-5BRS, PA3191U-4BRS, PA3191U-3BRS, PA3191U-1BRS, PA3191-2BAS, PA3191U-3BAS, PA3191U-1BAS and PA3191U-2BRS. Buyers with other Toshiba models or different part numbers will need a different battery.

Capacity, voltage and chemistry

The pack uses lithium polymer cells rated at 4400mAh and 10.8V for 47.52Wh of energy. Physical dimensions are 126.45 x 69.67 x 20.2mm and weight is 457.0g. The product carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications.

Deciding specification: capacity and voltage

The single figure that determines fit is the 4400mAh capacity at 10.8V. If your original battery shows a different milliampere-hour rating or voltage, this unit will not be the correct replacement.

Highlights

  • 4400mAh capacity delivers 47.52Wh runtime for extended mobile use
  • 8V lithium polymer cell matches original voltage for stable power delivery
  • Certified to ISO9001 RoHS CE UN38.3 and MSDS standards for safety assurance
  • Fits Portege M200 M400 Tecra M4 M7 models and PA3128U PA3191U part numbers
  • Compact 126.45 x 69.67 x 20.2mm design weighs only 457.0g for easy installation

Specifications

Battery TypeLithium Polymer

Questions about this item

How do I install the NShi 4400mAh 10.8V battery in my Portege M400-S933 and what step is often missed?

Power off, unplug the AC adapter, slide the release latch, remove the old pack, insert the new 126.45 x 69.67 x 20.2 mm unit until it clicks, then charge fully before first use.

What maintenance will this Li-ion 47.52Wh pack need and when should I replace it?

No scheduled maintenance; run a full charge cycle monthly if stored, keep contacts clean, and replace when runtime drops well below the original 4400mAh capacity after many cycles.

What limit appears first during sustained heavy use of this 457.0g replacement battery?

Thermal limits trigger throttling before the 10.8V output drops; the pack meets ISO9001, RoHS, CE, UN38.3 and MSDS safety standards for continuous operation.

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