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Black rectangular laptop battery with connector edge, slim profile

GreenTechLLC

GreenTechLLC C31N1905 laptop battery ASUS Vivobook S330 S333 S433 S533 11.5V 50Wh

SKU CH-VS4T-359AX

Replacement 3-cell lithium-ion battery rated 11.55 V, 50 Wh for compatible ASUS Vivobook models

  • ColorBlack
  • TypeBattery
  • CompatibilityASUS VIVOBOOK S13 S330, S13 S333, S13 S333JA, S14 M433, S14
  • Battery Type3 Cell Lithium-Ion
  • Battery Voltage11.55v
  • Battery Capacity4335mah
  • Replaces original C31N1905 and 0B200-03580200 part numbers directly
  • Fits Vivobook S13, S14, S15, S521, V533 and K533 series models
  • Delivers 11.55 V and 50 Wh capacity from three lithium-ion cells
  • Weighs only .7 lb with a slim .20 in profile for easy installation
  • Tested for correct voltage, circuit protection and low self-discharge with CE, FCC and RoHS certification

GreenTech C31N1905 replacement battery

This new three-cell lithium-ion pack replaces the original C31N1905 or 0B200-03580200 unit in compatible ASUS Vivobook models. It is built for owners of S13, S14 or S15 series laptops who need a direct swap without modification.

Voltage match at 11.55 V

The single specification that decides fit is the 11.55 V nominal output; the battery must sit at this voltage to work with the laptop’s charging circuit. A different voltage will prevent the system from recognising or charging the pack.

50 Wh capacity for typical daily use

At 50 Wh and 4335 mAh the pack delivers several hours of office workloads, web browsing and video playback on a full charge. Heavy multi-core tasks or sustained GPU load will drain it faster, so users running demanding workloads should keep the charger nearby.

Highlights

  • Replaces original C31N1905 and 0B200-03580200 part numbers directly
  • Fits Vivobook S13, S14, S15, S521, V533 and K533 series models
  • Delivers 11.55 V and 50 Wh capacity from three lithium-ion cells
  • Weighs only .7 lb with a slim .20 in profile for easy installation
  • Tested for correct voltage, circuit protection and low self-discharge with CE, FCC and RoHS certification

Specifications

BrandGreenTech
ModelC31N1905, 0B200-03580200
Part NumberC31N1905, 0B200-03580200
ColorBlack
TypeBattery
CompatibilityASUS VIVOBOOK S13 S330, S13 S333, S13 S333JA, S14 M433, S14 S433, S14 S433FA, S14 S433FL, S15 S533, S15 S533EQ, S15 S533FA, S521FA, V533F, K533F
Battery Type3 Cell Lithium-Ion
Battery Voltage11.55v
Battery Capacity4335mah
Dimension10.65 x 2.80 x 0.20"
Weight0.7 lb

Questions about this item

How long will the 50Wh rating actually run my Vivobook S333?

The 50Wh capacity at 11.55V provides 4335mAh, matching the original C31N1905 specification for comparable runtime on supported models.

Does the battery connect through a standard laptop interface or a proprietary connector?

It uses the same internal connector as the ASUS OEM part numbers C31N1905 and 0B200-03580200 for direct replacement.

Will the 10.65 x 2.80 x 0.20 inch dimensions fit inside my S14 S433 chassis?

Yes, the battery is built to the exact form factor of the original 3-cell pack for all listed Vivobook S13, S14 and S15 models.

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