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 with connector strip

Beisite

Beisite C31N2019 63Wh laptop battery

SKU CH-7C4Y-YS8G3

A 63 Wh lithium-ion replacement battery for compatible Asus ExpertBook B3, B5 and Flip models

  • ColorBlack
  • TypeBattery
  • Battery TypeLithium-Ion

Type C31N2019--Type B

  • 63 Wh capacity extends runtime for demanding workloads
  • 61 V lithium-ion chemistry delivers stable power output
  • Replaces C31N2019, C31N2019-1 and 3ICP6/70/81 part numbers
  • Compatible with Vivobook Pro 14X OLED M7400 and Pro 15 OLED M3500 series
  • New condition with 12-month warranty for peace of mind

Product Identity

This Beisite C31N2019 lithium-ion battery replaces the original 63Wh unit in compatible ASUS VivoBook Pro 14X and 15 OLED models. It operates at 11.61V and carries a 12-month warranty.

Compatibility Fit

The pack suits owners of the listed VivoBook Pro 14X OLED M7400 or VivoBook Pro 15 OLED M3500QC variants who need a direct replacement. Buyers with other ASUS series or non-listed model numbers should verify the part number before ordering.

Sustained Operation

Rated at 63Wh and 6427mAh, the cell delivers consistent voltage across a full discharge cycle rather than only in short bursts. Lithium-ion chemistry maintains stable output during extended workloads without the sharp drop-off seen in aged packs.

Highlights

  • 63 Wh capacity extends runtime for demanding workloads
  • 61 V lithium-ion chemistry delivers stable power output
  • Replaces C31N2019, C31N2019-1 and 3ICP6/70/81 part numbers
  • Compatible with Vivobook Pro 14X OLED M7400 and Pro 15 OLED M3500 series
  • New condition with 12-month warranty for peace of mind

Specifications

BrandC31N2019
ColorBlack
TypeBattery
Battery TypeLithium-Ion

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Which Asus VivoBook Pro model numbers are confirmed compatible with this C31N2019 battery?

This battery fits Asus VivoBook Pro 14X OLED M7400 and VivoBook Pro 15 OLED models including M3500QC-L1062, L1079, L1081, L1105, L1142, L1221, L1249 and L1347.

Will this 11.61 V, 63 Wh lithium-ion pack replace the original 3ICP6/70/81 cell in my ExpertBook B3 or B5 series?

Yes, it replaces part numbers C31N2019, C31N2019-1 and 3ICP6/70/81 for ExpertBook B3 B3604CMA, B3 Flip B3402FBA, B5 B5404CMA, B5404CVA and B5 Flip B5602CBN, B5602FBA, B5602FVA.

How can I verify the new battery is recognised and charging correctly after installation?

Check the OS battery report for 11.61 V design voltage and 6427 mAh design capacity, then confirm the charge LED shows normal charging and the runtime matches the 63 Wh rating.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.