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Black rectangular lithium-ion battery pack with connector cable

ARCTIC

ARCTIC B31N1842Voltage 11.52V 42Wh 2 in 1 accessory

SKU CH-CDAH-KMY59 MPN B31N1842Voltage

Replacement 11.52 V 42 Wh Li-ion battery for compatible ASUS VivoBook models

  • Li-ion chemistry delivers stable power
  • 52V 42Wh capacity matches original specs
  • Replaces part numbers B31N1842 and 0B200-03440000
  • Fits multiple ASUS VivoBook 15 and S15 series models
  • Condition: new battery ready for installation

Replacement Battery for ASUS VivoBook 15 and S15

This 11.52V 42Wh lithium-ion unit replaces the original B31N1842 pack in compatible ASUS VivoBook 15 and S15 models. It fits series including X513, K513, F513, S513, M513, X531, K531, V531, S531 and S5500. The battery uses a standard Li-ion chemistry rated at 3653mAh.

Upgrade from a worn or swollen original pack

Swap this in when the factory battery no longer holds charge, reports reduced capacity or shows physical swelling. The jump is worth it if run-time has dropped below useful levels or the laptop shuts down unexpectedly. Verify the connector matches the product image before ordering because factory revisions can differ.

42Wh capacity for everyday mobile work

The 42Wh rating delivers typical office and browsing run-time for the supported 15-inch chassis. It handles light productivity, video playback and web sessions without issue. Heavy multi-tasking, sustained loads or high screen brightness will drain the pack faster and may require a mid-day recharge.

Highlights

  • Li-ion chemistry delivers stable power
  • 52V 42Wh capacity matches original specs
  • Replaces part numbers B31N1842 and 0B200-03440000
  • Fits multiple ASUS VivoBook 15 and S15 series models
  • Condition: new battery ready for installation

Specifications

No published specifications for this item yet.

Questions about this item

What connector does the B31N1842Voltage battery use to fit the ASUS VivoBook S15?

The battery uses a specific connector shown in the product images; verify the interface matches your laptop before ordering because cable length and plug shape can vary between factories.

What is the common installation step that causes the new battery not to be recognised?

The interface must be fully seated; if the laptop does not detect the battery, disconnect and reconnect the plug firmly, then discharge to 5 percent and complete three to four full charge cycles.

How should the Li-ion 42Wh cell be conditioned after fitting to maintain capacity?

Discharge the new pack to 5 percent — not zero — then charge fully and repeat the cycle three to four times to wake up the cells and stabilise runtime.

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