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Black rectangular 3-cell lithium-ion laptop battery with connector strip

GreenTechLLC

GreenTechLLC B31N1911 C31N1911 laptop battery 11.55V 42Wh 3-cell

SKU CH-9XD4-KH1K2

Replacement 11.55V 42Wh three-cell lithium-ion battery compatible with numerous ASUS Vivobook Flip 14 and related models

  • ColorBlack
  • TypeBattery
  • CompatibilityASUS VIVOBOOK FLIP 14 A413FA, D413DA, D413IA, F413JA, K413EA
  • Battery Type3 Cell Lithium-Ion
  • Battery Voltage11.55V
  • Battery Capacity3640mah
  • Replaces multiple OEM part numbers including B31N1911 and C31N1911
  • Fits a wide range of ASUS Vivobook Flip 14 models
  • Delivers 11.55V and 42Wh capacity for reliable power
  • Built with 3-cell lithium-ion chemistry at 3640mAh
  • Tested for voltage accuracy, circuit protection and low self-discharge

Replacement battery for ASUS Vivobook Flip 14

This GreenTech 11.55V lithium-ion pack delivers 42Wh across three cells and matches the original B31N1911 and C31N1911 part numbers. It is built for owners of compatible Vivobook Flip 14 models who need a direct swap for a depleted or failing factory unit. The black casing measures 10.75 x 3 x .25 inches and weighs .7 lb.

Replaces OEM packs B31N1911 C31N1911

The battery supersedes part numbers 0B200-03580000, 0B200-03750000, 0B200-03580300M and 08200-03580800M used across numerous ASUS series including A413, D413, F413, K413, M413, M433, R413, R432, R438, S413, S433, TM420, TP420, TP470, X1702, X413, X421 and X421 variants. The upgrade is worth it when the original cell no longer holds sufficient charge for mobile work.

Verify your exact model number before ordering

Confirm the laptop’s service tag matches one of the listed ASUS Vivobook Flip 14 designations such as A413FA, D413DA, F413JA, K413JA, M413DA, R413DA, S413EA, TM420IA, TP420UA, X1702ZA or X421EA. Check that the existing battery label shows 11.55V and 42Wh so the voltage and capacity align. This pack is not for users needing a higher-capacity alternative or a different form factor.

Highlights

  • Replaces multiple OEM part numbers including B31N1911 and C31N1911
  • Fits a wide range of ASUS Vivobook Flip 14 models
  • Delivers 11.55V and 42Wh capacity for reliable power
  • Built with 3-cell lithium-ion chemistry at 3640mAh
  • Tested for voltage accuracy, circuit protection and low self-discharge

Specifications

BrandGreenTech
ModelB31N1911, C31N1911, 0B200-03580000, 0B200-03750000, 0B200-03580300M, 08200-03580800M
Part NumberGTS-B31N1911-42WH
ColorBlack
TypeBattery
CompatibilityASUS VIVOBOOK FLIP 14 A413FA, D413DA, D413IA, F413JA, K413EA, K413FA, K413FQ, K413JA, M413DA, M413IA, M413UA, M433DA, M433IA, R413DA, R432UA, R438IA, S413DA, S413EA, S413FA, S413FQ, S413IA, S413JA , S433EA, S433EQ, S433FA, S433IA, S433JA, TM420IA, TM420U, TM420UA, TP420IA, TP420UA, TP470EA, TP470EZ, X1702ZA, X413EA, X413FA, X413FP, X413JA, X421DA, X421EA, X421EP, X421EQ, X421FA, X421FF, X421FP, X421FQ, X421IA, X421JA, X421JP, X421UA
Battery Type3 Cell Lithium-Ion
Battery Voltage11.55V
Battery Capacity3640mah
Dimension10.75 x 3 x 0.25"
Weight0.7 LB

Questions about this item

Will the 10.75 x 3 x .25 inch battery fit my ASUS Vivobook Flip 14 A413FA?

Yes, the GreenTech B31N1911 C31N1911 is built to the exact dimensions and connector layout for the Vivobook Flip 14 A413FA and the full model list shown in the compatibility data.

What is the correct way to install this 3-cell 11.55V battery, and which step do people often miss?

Power off the laptop, disconnect the AC adapter, remove the bottom case screws, unplug the old battery cable from the motherboard, fit the new pack, reconnect the cable firmly, then replace the case and screws before turning on.

How long will the 42Wh 3640mAh lithium-ion pack last before I need a replacement?

A 3-cell lithium-ion battery typically delivers 300 to 500 full charge cycles; with daily use that means roughly two to three years before runtime drops enough to warrant a new pack.

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