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Rectangular black laptop battery with label showing model C31N2005

PowerWarehouse

PowerWarehouse C31N2005 laptop battery 11.55V 4335mAh for Asus CX3400FMA CX9400CEA B3402

SKU CH-YE2C-4HT4B

11.55V 4335mAh replacement battery fits Asus CX3400FMA CX9400CEA B3402 series

  • Battery voltage rating11.55 V
  • Battery capacity4335mah
  • Compatible withAsus CX3400FMA, CX9400CEA, B3402, B3402FBA, B3402FEA, B3402F
  • Replaces original C31N2005 battery for compatible Asus models
  • Delivers 11.55V at 4335mAh capacity for extended runtime
  • Fits Asus CX3400FMA, CX9400CEA, B3402 and B5602 series
  • Matches OEM part numbers C31N2005 and 0B200-03810100
  • New condition battery from US-based supplier with 12-month coverage

Direct replacement for Asus CX3400FMA.

The PowerWarehouse C31N2005 battery is a new, direct-fit unit rated at 11.55V and 4335mAh. It replaces OEM part numbers C31N2005 and 0B200-03810100 across the listed Asus models. Buyers with those exact model numbers receive a like-for-like power source.

Check your laptop model

Verify that the machine’s base label matches one of the compatible models such as CX3400FMA, CX9400CEA, B3402, B3402FBA, B3402FEA, B3402FVA, B5602CBA, B5602CVA or B5602FBA. Confirm the original battery carries the OEM code C31N2005 or 0B200-03810100. This battery will not fit other Asus lines or third-party chassis.

Built to the original form factor

The pack uses the same physical dimensions and connector orientation as the OEM unit, so it seats without gaps or cable strain. No soldering or adapter cables are required; the battery clicks into the existing bay and locks with the original latch mechanism. Users who need a higher-capacity cell or a different voltage should look elsewhere.

How it compares

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

Price $50.99
Pricier than about 82% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand namePowerwarehouse
Part numberC31N2005, 0B200-03810100
Power
Battery voltage rating11.55 V
Battery capacity4335mah
Compatibility
Compatible withAsus CX3400FMA, CX9400CEA, B3402, B3402FBA, B3402FEA, B3402FVA, B5602CBA, B5602CVA, B5602FBA

Questions about this item

Does the C31N2005 battery arrive with any tools or screws, or do I need to buy a screwdriver set separately?

The battery ships as a standalone unit; no tools, screws or installation kits are included, so you will need a suitable screwdriver if your laptop requires one for the battery compartment.

My Asus is a B3402FEA — is the 11.55 V 4335 mAh version the only capacity offered for this model?

Yes, the C31N2005 replacement is supplied in a single 11.55 V 4335 mAh configuration that matches the original specification for every listed B3402 variant.

What runtime can I expect from the 4335 mAh rating once the battery is installed in my CX3400FMA?

The 4335 mAh capacity restores the original factory runtime; actual hours depend on screen brightness, workload and power settings, but it matches the energy the laptop was designed for.

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