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Rectangular black lithium-ion laptop battery with connector plug

No Sew

No Sew B31N1912 3-cell 11.55V 42Wh laptop battery

SKU CH-NFB1-G6W2K

Three-cell lithium-ion battery restores portable power for compatible ASUS VivoBook 14 and 15 models

  • Color?B31N1912
  • Type3550 milliamp_hours
  • CompatibilityB31N1912 C31N1912 0B200-03680200 0B200-03680000
  • Battery TypeLithium-Ion
  • Battery Voltage5V
  • Battery Capacity3550 milliamp_hours
  • Restores portable runtime with a 42Wh 3-cell Li-ion pack
  • Delivers 11.55V to match original laptop power requirements
  • Replaces part numbers B31N1912 C31N1912 0B200-03680200 0B200-03680000
  • Fits ASUS VivoBook 14 E410MA L410MA and 15 E510MA E510KA series
  • Tested for correct voltage circuit protection capacity and stable current

Replacement Battery for ASUS VivoBook

This 3-cell lithium-ion battery replaces the original B31N1912 or C31N1912 pack in compatible ASUS VivoBook 14 and 15 models. It delivers a rated capacity of 42Wh at 11.55V to restore portable runtime. The unit weighs 231 grams and is supplied in new condition.

Upgrades a Worn Original Pack

Swapping this battery in is worth it when the factory cell no longer holds a useful charge or shuts down under load. It matches the voltage and capacity specifications of part numbers 0B200-03680000 and 0B200-03680200. The replacement restores the laptop’s designed battery life without hardware modification.

Suits Owners of Listed VivoBook Models

Buyers with an ASUS VivoBook E410MA, L410MA, E410KA, E510MA, E510KA, F414MA, L510MA or R522MA series notebook can use this battery after confirming the part number on their original unit. It is not for users whose laptop requires a different voltage, cell count or connector layout.

Highlights

  • Restores portable runtime with a 42Wh 3-cell Li-ion pack
  • Delivers 11.55V to match original laptop power requirements
  • Replaces part numbers B31N1912 C31N1912 0B200-03680200 0B200-03680000
  • Fits ASUS VivoBook 14 E410MA L410MA and 15 E510MA E510KA series
  • Tested for correct voltage circuit protection capacity and stable current

Specifications

ModelB31N1912
Part NumberB31N1912
Color?B31N1912
Type3550 milliamp_hours
CompatibilityB31N1912 C31N1912 0B200-03680200 0B200-03680000
Battery TypeLithium-Ion
Battery Voltage5V
Battery Capacity3550 milliamp_hours
AC Adapter Voltage19V
Featureslithium_ion, Rechargeable, 11.55 volts_of_alternating_current, 3550 milliamp_hours, 6 milliamp_hours, B31N1912 C31N1912 0B200-03680200 0B200-03680000, Adults
FunctionAdults, B31N1912 C31N1912 0B200-03680200 0B200-03680000
Weight231 grams

Questions about this item

What dimensions and weight does the B31N1912 battery have so I can confirm it fits my VivoBook 14 chassis?

The replacement battery weighs 231 grams and uses a 3-cell Li-ion pack built to the B31N1912 form factor for the listed VivoBook 14 and 15 models.

Which screws and connectors must I detach during installation, and which step is most often missed?

Remove the bottom-case screws, disconnect the old battery cable from the motherboard before lifting the pack, then reconnect the new B31N1912 cable securely — skipping the cable disconnect risks pin damage.

How will I know when this 42Wh Li-ion pack needs replacing?

Runtime will fall sharply, the laptop may shut down at higher charge percentages, or the OS will report a significant capacity loss versus the original 42Wh rating.

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