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Rectangular black lithium-polymer laptop battery with connector

NShi

NShi C21N1808 38Wh 4940mAh 7.7V laptop battery

SKU CH-0NB8-RE7GA MPN C21N1808

A 38 Wh 7.7 V lithium-polymer replacement battery for Asus Chromebook C423NA and C523NA series

  • Battery TypeLithium Polymer
  • Ready for Asus Chromebook C423NA and C523NA series
  • 38 Wh capacity supports extended mobile use
  • 7 V lithium-ion chemistry matches original spec
  • Replaces part numbers C21N1808 C21PqCH 0B200-03060000 0B200-03130000
  • CE UL FCC RoHS certified with built-in circuit protection

Replacement battery for Asus Chromebook C423NA

This lithium polymer battery delivers 38Wh at 7.7V and fits the listed Asus Chromebook C423NA and C523NA series models. It is intended for owners whose original cell no longer holds a useful charge.

Two physical designs require visual confirmation

The C21N1808 part number exists in two different case designs, so you must compare your original battery to the product image. If the shape or connector position differs, this unit will not fit your machine.

Straightforward swap once the correct design is

Installation involves opening the chassis, disconnecting the old pack and connecting the new one using the same interface. The most common issue is ordering the wrong design variant, which prevents the connector from mating or the pack from seating properly.

Highlights

  • Ready for Asus Chromebook C423NA and C523NA series
  • 38 Wh capacity supports extended mobile use
  • 7 V lithium-ion chemistry matches original spec
  • Replaces part numbers C21N1808 C21PqCH 0B200-03060000 0B200-03130000
  • CE UL FCC RoHS certified with built-in circuit protection

Specifications

Battery TypeLithium Polymer

Questions about this item

Will the C21N1808 battery fit my Asus Chromebook C423NA-BV0054?

Yes, the C21N1808 is listed as compatible with the C423NA-BV0054 model. Note that this battery has two designs, so confirm your original matches the product picture before ordering.

What is the installation step people often miss when fitting the C21N1808 battery?

Buyers often forget to verify the connector orientation. The C21N1808 has two design variants; the interface must align exactly with the motherboard socket or the laptop will not power on.

How many recharge cycles can I expect from the C21N1808 before it needs replacement?

The manufacturer rates the C21N1808 for more than 500 recharge cycles over its lifespan. Actual longevity depends on usage patterns and charging habits.

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