We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular lithium-ion laptop battery pack

LXHY

LXHY B31N1912 42Wh 11.55V 3550mAh laptop battery

SKU CH-DG59-XD3Y9 MPN B31N1912

42 Wh lithium-ion replacement battery for ASUS VivoBook 14 and 15.6-inch models including E410, L410, E510, F414, L510 and R522 series

  • Battery typeLithium-Ion
  • Battery voltage rating11.55 V
  • Battery capacity3,550 mAh
  • Product colorBlack
  • Product typeBattery
  • 42 Wh lithium-ion cell keeps your VivoBook running longer
  • 55 V / 3550 mAh matches the original B31N1912 specification
  • Replaces C31N1912, 0B200-03680000 and 0B200-03680200 part numbers
  • Fits E410, L410, F414, L510, R522 and E510 series models
  • CE, FCC and RoHS certified for safe operation

Product identity

The LXHY B31N1912 is a 42Wh lithium-ion replacement battery rated at 11.55V and 3550mAh. It is built for owners of compatible ASUS VivoBook 14 and 15.6 inch laptops who need a new power source.

Sustained behaviour

The cell chemistry delivers a stable 11.55V output across the discharge cycle, supporting consistent run time during extended work sessions. CE, FCC and RoHS certification confirms the pack meets recognised safety and environmental standards for daily use.

Upgrade context

This unit replaces original part numbers B31N1912, C31N1912, 0B200-03680000 and 0B200-03680200. The jump is worthwhile when the factory battery no longer holds sufficient charge or shows reduced capacity after prolonged service.

How it compares

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

Price $17.99
Cheaper than about 76% of the 27,790 comparable items (median $30.99).

Specifications

Product
Model nameB31N1912
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.55 V
Battery capacity3,550 mAh

Questions about this item

Does the 11.55 V 42 Wh cell generate noticeable heat or fan noise during all-day use?

The battery itself produces no fan noise and only normal warmth during charging or heavy discharge; any audible cooling comes from the laptop, not the pack.

What must I already own to install this B31N1912 pack in my VivoBook?

You need a compatible ASUS VivoBook model such as the E410MA, L410MA, E410KA, F414MA, E510MA, E510KA, L510MA or R522MA series and a small Phillips screwdriver for the bottom case screws.

Will this 3550 mAh replacement work alongside the original charger and BIOS on an older VivoBook 14 E410MA-EK087T?

Yes, the pack matches the original 11.55 V specification and part numbers B31N1912 or C31N1912, so the stock charger and BIOS recognise it without modification.

More in Laptop Chargers & Batteries

Similar items