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Rectangular black laptop battery with connector pins and label showing 11.55V 42Wh

2-Power B31N1912 11.55V 42Wh laptop battery

SKU CH-Y172-59C9N MPN B31N1912

Replacement lithium-ion battery supplying 11.55 volts and 42 watt-hours for compatible Asus VivoBook 14 models

  • Compatibility?For Asus VivoBook 14 E410 E410MA E410MA-EK007TS E410MA-EK01
  • Battery TypeLithium-Ion
  • Battery Voltage20V
  • AC Adapter Voltage20V
  • AC Adapter Output Power100W
  • Featureslithium_ion, Rechargeable, 11.55 volts, 3550 milliamp_hours,
  • Replaces original B31N1912 and C31N1912 part numbers
  • 42Wh lithium-ion capacity powers compatible VivoBook models
  • 55V 3550mAh rating matches factory specifications
  • Grade A cells deliver up to 500 recharge cycles
  • Includes screwdrivers for straightforward self-installation

Replacement battery for VivoBook 14

The 2-Power B31N1912 is a new lithium-ion battery built for Asus VivoBook 14 E410, L410 and F414 series laptops. It matches the original B31N1912 and C31N1912 part numbers and fits models such as E410MA, L410MA-BV058TS and F414MA. The pack uses grade-A cells and includes screwdrivers for installation.

42 Wh capacity with 500-cycle rating

Rated at 11.55 V and 42 Wh (3550 mAh), the three-cell pack delivers the same energy as the factory unit. It comfortably powers typical office and browsing workloads through a full day, while heavier tasks such as video playback will reduce run time. The cells are specified for up to 500 recharge cycles over their lifespan.

UL, CE, FCC and RoHS certified with protection

The battery carries UL, CE, FCC and RoHS certifications and integrates short-circuit, overheat and overload protections. A standard connector aligns with the VivoBook chassis, and the included screwdrivers simplify the swap. Buyers needing a higher-capacity pack or a different form factor should look elsewhere.

Highlights

  • Replaces original B31N1912 and C31N1912 part numbers
  • 42Wh lithium-ion capacity powers compatible VivoBook models
  • 55V 3550mAh rating matches factory specifications
  • Grade A cells deliver up to 500 recharge cycles
  • Includes screwdrivers for straightforward self-installation

Specifications

Brand2-Power
ModelB31N1912
Part NumberB31N1912
Compatibility?For Asus VivoBook 14 E410 E410MA E410MA-EK007TS E410MA-EK017TS E410MA-EK026TS E410KA E410KA-EK139TS ?For Asus VivoBook 14 L410 L410MA L410MA-BV037TS L410MA-BV053TS L410MA-BV058TS ?For Asus VivoBook 14 F414 F414MA ?For Asus VivoBook E510 E510MA E510KA E510KA-EJ033TS ?For Asus VivoBook L510 L510MA Series
Battery TypeLithium-Ion
Battery Voltage20V
AC Adapter Voltage20V
AC Adapter Output Power100W
Featureslithium_ion, Rechargeable, 11.55 volts, 3550 milliamp_hours, 42 watt_hours, ?For Asus VivoBook 14 E410 E410MA E410MA-EK007TS E410MA-EK017TS E410MA-EK026TS E410KA E410KA-EK139TS ?For Asus VivoBook 14 L410 L410MA L410MA-BV037TS L410MA-BV053TS L410MA-BV058TS ?For Asus VivoBook 14 F414 F414MA ?For Asus VivoBook E510 E510MA E510KA E510KA-EJ033TS ?For Asus VivoBook L510 L510MA Series, Laptop
Weight220 grams

Questions about this item

Will this 11.55V 42Wh battery fit my VivoBook 14 E410MA-EK017TS without changing the original charger?

Yes, it replaces the original B31N1912 or C31N1912 pack and works with the laptop's existing 20V power adapter.

How can I verify the battery is recognised and charging correctly after I install it?

The OS should show the new pack at 11.55V and 3550mAh; if it is not detected, reseat the connector, discharge to 5%, then complete three to four full charge cycles.

Does the package include the screwdrivers needed to open the VivoBook 14 L410MA-BV058TS case?

The manufacturer states the box comes with screwdrivers for the installation.

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