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Rectangular black laptop battery with connector pins visible

KingSener

KingSener B31N1729 laptop battery 11.52V 42WH for ASUS VivoBook S15 S530 S530F

SKU CH-8K9E-J02EX MPN B31N1729

Replacement 11.52 V, 42 Wh lithium-ion battery fits ASUS VivoBook S15 S530 and S530F models

  • Battery Voltage11.52V
  • Battery Capacity42WH
  • 42 Wh capacity powers longer work sessions
  • 52 V rating matches original ASUS specification
  • Brand-new cells deliver full design capacity from day one
  • Exact B31N1729 fit for VivoBook S15 S530 S530F
  • High-quality Li-ion construction ensures stable output

Compatible replacement battery

The KingSener B31N1729 is a new lithium-ion replacement battery built for the ASUS VivoBook S15 S530 and S530F series. It matches the original 11.52V voltage and 42WH capacity so the notebook recognises it immediately. Installation requires no modifications because the physical layout is identical to the factory pack.

Sustained discharge behaviour

High-quality cells and a reliable PCB deliver stable voltage throughout the discharge curve rather than a brief peak followed by a rapid drop. The supplier confirms the full charge capacity meets or exceeds the 42WH design rating. Conditioning the pack with two or three full charge and discharge cycles from low current helps the cells settle to their true runtime.

Practical limits of the 42WH pack

Runtime scales with workload; heavy multi-core tasks or bright screen settings will deplete the 42WH reserve faster than light office use. The pack is not a high-capacity upgrade, so users needing significantly longer unplugged time should look elsewhere. Storage above 80 % charge and avoidance of hot or humid environments preserve long-term health.

Highlights

  • 42 Wh capacity powers longer work sessions
  • 52 V rating matches original ASUS specification
  • Brand-new cells deliver full design capacity from day one
  • Exact B31N1729 fit for VivoBook S15 S530 S530F
  • High-quality Li-ion construction ensures stable output

Specifications

BrandKingSener
ModelB31N1729
Part NumberB31N1729 0B200-02920000
Battery Voltage11.52V
Battery Capacity42WH

Questions about this item

Does the 11.52V 42WH KingSener B31N1729 battery run hot when the laptop is used all day?

The battery uses high-quality Li-ion cells designed for stable capacity and longer running time under normal workloads.

What must I already own to install this B31N1729 battery in my ASUS VivoBook S15 S530?

You need the original battery screw layout and connector position to match the replacement unit exactly.

Will this 42WH replacement battery work alongside the original charger I kept from my older ASUS notebook?

Yes, it is 100% compatible with the same voltage and fits the original chassis without adaptation.

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