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Black rectangular lithium-ion laptop battery with label showing model C21N1408 7.5V 37WH

KingSener

KingSener C21N1408 laptop battery 7.5V 37WH for ASUS VivoBook 4000 MX555 V555L V555LB V555U

SKU CH-T8CC-N722B MPN C21N1408

Replacement lithium-ion battery delivers 37 Wh at 7.5 V for compatible ASUS VivoBook models

  • Battery typeLithium-Ion
  • Battery voltage rating7.5 V
  • Product colorBlack
  • Product typeBattery
  • Compatible with37WH
  • 37 Wh capacity powers ASUS VivoBook 4000 series for longer unplugged sessions
  • 5 V lithium-ion chemistry matches original C21N1408 specifications exactly
  • Brand-new replacement cell manufactured in China with quality assurance
  • Direct fit for MX555 V555L V555LB V555U models without modification
  • Black finish maintains original laptop appearance inside the chassis

Replacement Battery for ASUS VivoBook

This 37WH lithium-ion cell replaces the original C21N1408 pack in ASUS VivoBook 4000 MX555 V555L V555LB V555U laptops. It delivers 7.5V nominal voltage and fits the existing battery bay without modification. The unit ships new and ready to install.

Suits owners needing a direct swap.

Buyers with the listed VivoBook series gain a like-for-like power source that restores mobile runtime. Machines outside this compatibility list, including other ASUS ranges or different V555 sub-models, will not accept this pack.

Capacity and voltage define fit

The 37WH rating and 7.5V output determine whether the battery matches the laptop's power circuit and firmware expectations. Confirm both values against the original part before purchase.

How it compares

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

Price $32.99
Pricier than about 57% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameKingsener
Model nameC21N1408
Part numberC21N1408
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating7.5 V
Compatibility
Compatible with37WH

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