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Black rectangular lithium-ion laptop battery with label showing 42Wh 11.55V

Beisite

Beisite B31N1912 42Wh 11.55V laptop battery for Asus VivoBook 14 E410MA L410MA E410KA E510MA

SKU CH-4496-HEQY3

A 42 Wh lithium-ion replacement battery at 11.55 V for Asus VivoBook 14 E410M, E410MA, L410MA, E410KA and E510MA series laptops

  • ColorBlack
  • TypeBattery
  • Compatibilityfor VivoBook 14 E410M E410MA L410MA E410KA E510MA Series
  • Battery TypeLithium-Ion
  • Battery Voltage11.55V
  • Battery Capacity42Wh/3550mAh
  • 42 Wh capacity supports extended mobile use
  • 55 V lithium-ion chemistry matches original specification
  • Replaces B31N1912, C31N1912 and 0B200-03680200 part numbers
  • Fits multiple VivoBook 14 E410MA, L410MA, E410KA and E510MA models
  • Brand-new condition with 12-month manufacturer warranty

Replacement battery for Asus VivoBook 14

This 42Wh lithium-ion unit replaces the original B31N1912 cell in Asus VivoBook 14 E410M, E410MA, L410MA, E410KA and E510MA models. It delivers 11.55V and 3550mAh to restore factory runtime for owners whose built-in pack no longer holds charge.

Package contents and fit

The box contains a single black battery and no cables, drivers or tools. Because the part number matches 0B200-03680200 and C31N1912, it slots into the existing bay without adapter brackets or firmware updates.

Build and daily use

The lithium-ion chemistry and rigid black casing mirror the OEM design, so the latch engages with the same click and the connector aligns with the motherboard header. Buyers needing a higher-capacity pack or a different voltage will not be served by this model.

Highlights

  • 42 Wh capacity supports extended mobile use
  • 55 V lithium-ion chemistry matches original specification
  • Replaces B31N1912, C31N1912 and 0B200-03680200 part numbers
  • Fits multiple VivoBook 14 E410MA, L410MA, E410KA and E510MA models
  • Brand-new condition with 12-month manufacturer warranty

Specifications

BrandB31N1912
ModelB31N1912
Part Number0B200-03680200
ColorBlack
TypeBattery
Compatibilityfor VivoBook 14 E410M E410MA L410MA E410KA E510MA Series
Battery TypeLithium-Ion
Battery Voltage11.55V
Battery Capacity42Wh/3550mAh

Questions about this item

How many charge cycles will the 42Wh lithium-ion pack last before it needs replacing?

The 12-month warranty period covers the battery; typical lithium-ion cells in this class last several hundred cycles before capacity drops noticeably

What is the first limit reached during continuous discharge of the 11.55V 3550mAh cell?

The 42Wh energy rating determines how long the pack can run before voltage drops to the cutoff point

Does the battery get hot or noisy when the VivoBook 14 runs all day on the 42Wh pack?

Lithium-ion batteries operate silently; warmth is normal under load but the pack has no moving parts to generate noise

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