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Rectangular black 6-cell lithium-ion laptop battery with label showing 11.1V 5200mAh

Toshiba

Toshiba PA3818U-1BRS 11.1V 5200mAh 6-cell laptop battery

SKU CH-8VNJ-1BK1T

A 6-cell lithium-ion replacement battery delivering 5200 mAh at 11.1 V for compatible Toshiba Satellite models

  • Battery TypeLithium-Ion
  • Lithium-ion chemistry delivers reliable power with no memory effect
  • 5200 mAh capacity extends runtime for Satellite P775 and A665 models
  • 6 premium cells provide stable voltage across 10.8 V or 11.1 V systems
  • CE and RoHS certified for safety and environmental compliance
  • One-year warranty backs manufacturer-spec performance

Replacement Battery for Satellite P775 and A665

This lithium-ion replacement battery fits Toshiba Satellite P775-S7215, P775 and A665-S5199X laptops. It delivers 11.1 V and 5200 mAh capacity across six premium-grade cells. The unit is brand new and certified to CE and RoHS standards for safety and stability. It is designed to meet or exceed the original manufacturer specifications.

Thermal Behaviour and Power Efficiency

Lithium-ion chemistry eliminates memory effect so the pack charges efficiently without requiring full discharge cycles. The integrated protection circuit board manages voltage regulation and prevents over-charge, over-discharge and short-circuit conditions. Eco-friendly construction uses no lead or mercury, reducing heat-generating impurities. Normal operation stays cool and stable thanks to the A-grade cell selection.

Sustained Load Performance

The 5200 mAh rating supports extended runtime during continuous workloads rather than brief bursts. Three full charge and discharge cycles condition the pack to reach its maximum rated capacity. The one-year warranty covers defects that could appear under prolonged daily use. CE and RoHS certification confirms the components maintain their electrical characteristics over time.

Highlights

  • Lithium-ion chemistry delivers reliable power with no memory effect
  • 5200 mAh capacity extends runtime for Satellite P775 and A665 models
  • 6 premium cells provide stable voltage across 10.8 V or 11.1 V systems
  • CE and RoHS certified for safety and environmental compliance
  • One-year warranty backs manufacturer-spec performance

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I install the PA3818U-1BRS battery in my Satellite P775-S7215, and what step is often missed?

Power off the laptop, unplug the AC adapter, slide the release latch, remove the old pack, insert the new 6-cell unit until it clicks, then charge it overnight before first use to reach full capacity.

What maintenance will this 5200mAh lithium-ion pack need later?

No scheduled maintenance is required; if runtime drops noticeably after many cycles, replace the pack. The protection circuit board and CE/RoHS certification help maintain safe operation throughout its life.

What limit appears first during sustained use of this 11.1V battery?

The 5200mAh capacity sets the runtime ceiling; under heavy load the pack will deplete faster and its voltage will sag toward the lower end of the 10.8V to 11.1V range, signalling recharge is needed.

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