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Rectangular black laptop battery with label showing model details

GreenTechLLC

GreenTechLLC C31N1620 11.5V 50WH 3-Cell Laptop Battery

SKU CH-BND4-VZTZQ

Replacement 3-cell lithium-ion battery rated 11.5 V and 50 Wh for compatible ASUS laptops

  • ColorBlack
  • TypeBattery
  • CompatibilityASUS P5440, P5440FA, P5440FF, P5440UA, P5440UF, UX430, UX430
  • Battery Type3 Cell Lithium-Ion
  • Battery Voltage11.5V
  • Battery Capacity4335MAH
  • Replaces multiple OEM part numbers for easy identification
  • 5 V 50 Wh capacity restores original runtime
  • Three lithium-ion cells deliver stable current
  • Tested for voltage accuracy and circuit protection
  • Certified to CE FCC RoHS safety standards

Direct replacement for ASUS ultraportables

This GreenTechLLC battery replaces OEM part C31N1620 and matches the 11.5 V, 50 Wh, three-cell lithium-ion specification. It fits ASUS P5440, P5440FA, P5440FF, P5440UA, P5440UF, UX430, UX430U, UX430UA, UX430UAR, UX430UN and UX430UQ models. Each unit is tested for voltage accuracy, circuit protection and low self-discharge before shipping.

Suits owners restoring original runtime

Buyers who need a like-for-like swap for a worn factory pack will find the correct connector and form factor here. Users whose laptops require a different voltage, cell count or capacity should look elsewhere, as this pack only delivers the stated 11.5 V and 4335 mAh configuration.

Steady output through a full discharge

The three-cell design maintains stable current from full charge down to the low-battery threshold, so performance does not sag mid-session. Built-in protection circuits guard against over-charge, over-discharge and short circuits, keeping output consistent across the entire cycle.

Highlights

  • Replaces multiple OEM part numbers for easy identification
  • 5 V 50 Wh capacity restores original runtime
  • Three lithium-ion cells deliver stable current
  • Tested for voltage accuracy and circuit protection
  • Certified to CE FCC RoHS safety standards

Specifications

BrandGreenTech
ModelC31N1620, C31PoJ1, 3ICP5/70/81, 0B200-02860200, 0B200-02860100, 0B200-02370000, 0B200-02370100
Part NumberC31N1620, C31PoJ1, 3ICP5/70/81, 0B200-02860200, 0B200-02860100, 0B200-02370000, 0B200-02370100
ColorBlack
TypeBattery
CompatibilityASUS P5440, P5440FA, P5440FF, P5440UA, P5440UF, UX430, UX430U, UX430UA, UX430UAR, UX430UN, UX430UQ
Battery Type3 Cell Lithium-Ion
Battery Voltage11.5V
Battery Capacity4335MAH

Questions about this item

Which ASUS laptop models accept the C31N1620 3ICP5/70/81 battery?

This battery fits ASUS P5440, P5440FA, P5440FF, P5440UA, P5440UF, UX430, UX430U, UX430UA, UX430UAR, UX430UN and UX430UQ.

Will the 11.5V 50WH pack work in a UX430 that originally shipped with a 31PoJ1 unit?

Yes, the GreenTech C31N1620 replaces OEM part numbers C31N1620, C31PoJ1, 3ICP5/70/81, 0B200-02860200, 0B200-02860100, 0B200-02370000 and 0B200-02370100.

How can I verify the battery is delivering the rated 11.5V and 4335MAH after installation?

Use the laptop’s built-in battery report or a hardware monitor to confirm the design voltage reads 11.5V and the full-charge capacity is close to 4335MAH.

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