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Rectangular black lithium-polymer laptop battery, 38Wh 7.6V

E-buy

E-buy 38Wh C21N1634 laptop battery for Asus Chromebook C523NA-IH24T

SKU CH-928G-MZRBA

38Wh 7.6V Li-polymer replacement battery fits Asus Chromebook C523NA and multiple A542, R542, X542, X580, V587 models

  • TypeBattery
  • Battery TypeLaptop Batteries
  • Li-polymer chemistry gives 38 Wh capacity
  • 6 V output matches original spec
  • 4840 mAh rating supports extended use
  • Compatible with Asus C523NA-IH24T and listed models
  • Replaces part number C21N1634 directly

Replacement battery for Asus Chromebook C523NA-IH24T

This 38Wh lithium-polymer pack is built as a direct replacement for the C21N1634 unit used in the Asus Chromebook C523NA-IH24T. It restores mobile power for students and professionals who rely on the notebook for daily work away from a mains socket. The 7.6V 4840mAh cell matches the original voltage and capacity specifications. Buyers needing a higher-capacity alternative will not find it in this listing.

Thermals noise and power draw

The battery operates silently with no moving parts and generates only minimal warmth during normal charge and discharge cycles. Power draw from the wall depends entirely on the notebook's own charging circuitry and the AC adapter in use. No fan noise or active cooling is involved at any stage. The pack simply stores and delivers energy as the system requests it.

What the bundled items change

The package contains the battery alone; no tools, screws or installation guides are supplied. Fitment covers a wide range of Asus models including the A580U A580B X580U X542U V587U FL5900L and FL8000U series. Users without a suitable screwdriver or opening tool must source those separately. No software or driver installation is required for the hardware to function.

Highlights

  • Li-polymer chemistry gives 38 Wh capacity
  • 6 V output matches original spec
  • 4840 mAh rating supports extended use
  • Compatible with Asus C523NA-IH24T and listed models
  • Replaces part number C21N1634 directly

Specifications

TypeBattery
Battery TypeLaptop Batteries

Questions about this item

How do I install the 38Wh C21N1634 battery in my Asus Chromebook C523NA-IH24T and what step is often missed?

Power off the Chromebook and disconnect the charger. Remove the bottom case screws, detach the old battery connector from the motherboard, then connect the new 7.6V 4840mAh pack before reassembling. The step often missed is reconnecting the battery ribbon cable fully seated.

What maintenance or replacement will the Li-polymer 38Wh pack need over time?

Li-polymer cells degrade with charge cycles; expect reduced runtime after several hundred full cycles. No user-serviceable parts exist inside. When capacity drops below usable levels, replace the entire C21N1634 unit with a new 7.6V 38Wh pack.

What limit appears first during sustained use of this 7.6V 4840mAh battery?

The 38Wh capacity ceiling is reached first; continuous load drains the 4840mAh cells until the Chromebook triggers low-voltage shutdown. Thermal throttling may follow if the pack warms under prolonged high draw, but capacity is the primary limit.

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