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Small round lithium CMOS battery with red and black wires attached

DBTLAP

DBTLAP CMOS Battery Compatible For Dell Alienware M18x R2

SKU CH-834E-CWGJ8

Lithium CMOS battery keeps Dell Alienware M18x R2 system time and BIOS settings, 18 units included

  • Battery TypeLithium
  • Replaces faulty CMOS battery to restore BIOS settings
  • Lithium cell delivers reliable RTC power for motherboard
  • Tested before shipping to ensure immediate compatibility
  • Designed specifically for Dell Alienware M18x R2 fit
  • Package includes one replacement CMOS battery

DBTLAP CMOS Battery for Alienware M18x R2

This replacement CMOS BIOS RTC battery is designed for the Dell Alienware M18x R2 laptop motherboard. It restores system time and BIOS settings when the original coin cell fails. The lithium unit arrives new and tested before shipping.

Simple motherboard installation with tested unit

Installation requires opening the laptop chassis to access the motherboard socket. The battery ships pre-tested to reduce the chance of a dead-on-arrival unit. Careful handling avoids damaging the connector or surrounding components during replacement.

Suits Alienware M18x R2 owners with CMOS errors

This part fits users whose M18x R2 loses date, time or BIOS configuration between boots. It does not address main battery runtime or power delivery issues. Buyers needing a primary laptop battery or a different form factor should look elsewhere.

Highlights

  • Replaces faulty CMOS battery to restore BIOS settings
  • Lithium cell delivers reliable RTC power for motherboard
  • Tested before shipping to ensure immediate compatibility
  • Designed specifically for Dell Alienware M18x R2 fit
  • Package includes one replacement CMOS battery

Specifications

Battery TypeLithium

Questions about this item

How can I verify the CMOS battery is working after installing it in my Alienware M18x R2?

The system clock holds the correct date and time after the laptop is powered off, and no CMOS checksum or BIOS reset errors appear on boot.

What is included in the package for this CMOS battery?

The package contains one lithium CMOS battery tested before shipping, intended as a direct replacement for the motherboard BIOS RTC cell.

Which version of this battery should I choose for the Alienware M18x R2?

This single lithium CMOS battery is the only version listed and matches the M18x R2 motherboard socket.

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