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Rectangular black lithium-ion laptop battery with long connector

Beisite

Beisite C31N1905 laptop battery 11.55V 50Wh long connector

SKU CH-MV5C-7RS3K

Replacement lithium-ion battery rated at 11.55V and 50Wh with a long connector for compatible Asus VivoBook models

  • Battery typeLithium-Ion
  • Product colorBlack
  • Product typeBattery

Connector C31N1905--Long Connector

  • Replaces original Asus part C31N1905 for direct compatibility
  • Delivers 11.55 V and 50 Wh capacity for reliable runtime
  • Lithium-ion chemistry provides stable power across charge cycles
  • Long connector design ensures secure fit in supported VivoBook models
  • Brand-new condition guarantees full rated performance from first use

Replacement Battery for Asus VivoBook S13 S14 S15

This lithium-ion battery replaces part numbers C31N1905, 0B200-03580200 and 3ICP5/70/82 in compatible Asus VivoBook S13, S14 and S15 models. It is built for owners who need a direct replacement when the original pack no longer holds charge. The 11.55V 50Wh rating matches the factory specification for these ultraportable lines.

Long Connector Design and Build

The pack uses a long connector layout that aligns with the motherboard header on supported S330, S333, S433, S533 and related chassis. Black lithium-ion cells are housed in a rigid shell that fits the existing battery bay without modification. No extra cables or adapters are required for installation.

Capacity and Voltage Limits

At 50Wh the energy reserve is fixed by the cell configuration and cannot be increased without changing the physical pack size. The 11.55V output is determined by the series cell count and will not support laptops that require a different nominal voltage. Buyers needing higher capacity or a different voltage must choose a battery engineered for their specific model.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $45.99
Pricier than about 78% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameC31N1905
Model nameC31N1905
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion

Questions about this item

What voltage and capacity does the 11.55V 50Wh C31N1905 battery deliver?

The battery provides 11.55 volts and a 50 watt-hour capacity, matching the original Asus specification for compatible VivoBook S13, S14 and S15 models.

Which connector length does the C31N1905 use for the VivoBook S330 and S333 series?

This version has the long connector required by the VivoBook S13 S330FA, S330UA, S333EA and S333JA chassis; the short-connector variant will not reach the motherboard header.

What is the first step when fitting the C31N1905 into a VivoBook S15 S533EA?

Power off the laptop, disconnect the AC adapter, then remove the base screws and gently lift the bottom cover before unplugging the old battery cable.

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