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Black rectangular lithium-ion laptop battery with label showing model C31N2105 11.61V 70Wh

Beisite

Beisite C31N2105 11.61V 70Wh laptop battery

SKU CH-BNVQ-ZA3FY

Replaces C31N2105 and 0B200-04140000 with an 11.61V 70Wh lithium-ion battery for Vivobook and Twin 15 series laptops

  • ColorBlack
  • TypeBattery
  • Compatibilityfor Vivobook M3402QA K3402ZA M3402RA M5402RA / Vivobook S 14
  • Battery TypeLithium-Ion
  • Battery Voltage11.61V
  • Battery Capacity70Wh

Type Type B

  • 70 Wh capacity powers extended work sessions
  • 61 V lithium-ion chemistry matches original specification
  • Replaces part numbers C31N2105, 0B200-04140000, 31CP6/70/81
  • Fits Vivobook 14X, 15X, 16X, S 14, S 14X, S 15, S 15X, S 16X and Twin 15 series
  • Brand new condition with 12 month warranty

Beisite C31N2105 70Wh replacement battery

The Beisite C31N2105 is a new 11.61V lithium-ion battery rated at 70Wh. It replaces part numbers C31N2105, 0B200-04140000 and 31CP6/70/81 in compatible Asus Vivobook and Twin 15 laptops. The black pack is built to match the original form factor and voltage specification.

Suits owners of listed Vivobook 14X, 15X.

This unit fits the extensive model list supplied, including Vivobook 14X M1403QA, Vivobook 15X M1503IA, Vivobook 16X M1603QA and Vivobook S 14X S5402ZA variants. It is not for users whose laptop requires a different voltage, capacity or connector layout. Buyers needing a higher watt-hour rating or a different part number should look elsewhere.

Verify the exact model number

Check the label on your original battery for C31N2105, 0B200-04140000 or 31CP6/70/81 to confirm compatibility. Ensure the laptop model appears in the supported list such as K3402ZA, M3402QA, S5402Z or K3502Z series. Confirm the voltage reads 11.61V and capacity reads 70Wh on the old pack.

Highlights

  • 70 Wh capacity powers extended work sessions
  • 61 V lithium-ion chemistry matches original specification
  • Replaces part numbers C31N2105, 0B200-04140000, 31CP6/70/81
  • Fits Vivobook 14X, 15X, 16X, S 14, S 14X, S 15, S 15X, S 16X and Twin 15 series
  • Brand new condition with 12 month warranty

Specifications

BrandC31N2105
ModelC31N2105
Part Number31CP6/70/81
ColorBlack
TypeBattery
Compatibilityfor Vivobook M3402QA K3402ZA M3402RA M5402RA / Vivobook S 14X S5402Z / Twin 15 K3502Z K3402Z S5600F S4600F Series
Battery TypeLithium-Ion
Battery Voltage11.61V
Battery Capacity70Wh

Other versions of this model

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Questions about this item

Does this 11.61V 70Wh battery need a matching AC adapter to charge inside my Vivobook S 14X M3402QA?

The battery charges through the laptop's built-in power circuitry, so the original Asus AC adapter you already use will charge it correctly.

Will the 31CP6/70/81 part number fit alongside the original cooling fan and motherboard screws in a Vivobook 16X M1603QA?

This pack is built to the same mechanical outline as the factory unit, so it seats in the existing bay without interfering with the fan, heatsink or screw posts.

How can I confirm the 0B200-04140000 replacement is reporting the correct 70Wh capacity after installation?

In Windows, open PowerShell and run 'powercfg /batteryreport'; the DESIGN CAPACITY line should read 70 000 mWh if the pack is recognised properly.

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