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Rectangular white lithium-ion laptop battery, model C21N1334

KingSener

KingSener C21N1334 laptop battery 7.6V 38WH

SKU CH-P2Q6-7RNXW MPN C21N1334

Replacement lithium-ion battery rated 7.6 V and 38 Wh for ASUS Transformer Book T200 series tablets

  • ColorWhite
  • TypeBattery
  • Battery TypeLithium-Ion
  • Battery Voltage7.6V
  • Battery Capacity38WH
  • Replaces ASUS C21N1334 battery in Transformer Book T200 series
  • 38WH lithium-ion cell delivers 7.6V operating voltage
  • Brand-new replacement unit with 100% fresh cells
  • Black finish matches original tablet aesthetics
  • Direct fit for T200TA, T200T, T200, 1A, 1K models

Replacement Battery for ASUS Transformer Book T200

This lithium-ion battery replaces the original C21N1334 unit in ASUS Transformer Book T200TA, T200T, T200, 1A, 1K and 200TA-C1-BL tablets. It delivers 38WH at 7.6V to restore mobile runtime for students and mobile professionals who rely on these 2-in-1 devices. The pack is brand new and built with high-quality cells manufactured in China.

Upgrading from a Worn or Failed Original Pack

Swap this in when the factory battery no longer holds a charge, shuts down unexpectedly or shows significant capacity loss. The jump is worth it if the tablet otherwise meets your needs but tethering to an outlet defeats its purpose. It is not for users who need a higher-capacity design than the original 38WH specification or a different voltage platform.

Straightforward Internal Swap with Basic Tools

Installation requires opening the tablet chassis, disconnecting the old pack and connecting the new one using the same connector. Common issues include damaging fragile ribbon cables during disassembly, failing to seat the connector fully or reassembling without verifying the battery is recognised by the BIOS. Take photos of each step and work on a clean, static-safe surface.

Highlights

  • Replaces ASUS C21N1334 battery in Transformer Book T200 series
  • 38WH lithium-ion cell delivers 7.6V operating voltage
  • Brand-new replacement unit with 100% fresh cells
  • Black finish matches original tablet aesthetics
  • Direct fit for T200TA, T200T, T200, 1A, 1K models

Specifications

BrandASUS
ModelC21N1334
ColorWhite
TypeBattery
Battery TypeLithium-Ion
Battery Voltage7.6V
Battery Capacity38WH

Questions about this item

Will the C21N1334 fit inside the ASUS Transformer Book T200TA tablet chassis?

The replacement battery is built to the C21N1334 form factor for the Transformer Book T200TA, T200T, T200, 1A, 1K and 200TA-C1-BL series.

How is the battery installed and what step do people often miss?

Power off the tablet, detach the keyboard dock, remove the rear screws, unplug the old pack connector and connect the new C21N1334 before reassembling; the connector must click fully into place.

When will the 38WH lithium-ion pack need replacing?

Runtime gradually shortens after hundreds of charge cycles; when the tablet no longer holds a useful charge, swap in another C21N1334 unit.

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