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DBTLAP

DBTLAP CMOS Battery for Dell Alienware 17 R5

SKU CH-C8TK-K0GJ5

Lithium CMOS battery restores BIOS settings and system clock on Dell Alienware 17 R5 laptops

  • Battery TypeLithium
  • Compatible with Dell Alienware 17 R5 motherboards
  • Lithium chemistry provides reliable RTC backup power
  • Replaces faulty or cracked CMOS BIOS batteries
  • Each unit tested before shipment for quality assurance
  • Single replacement battery included in package

CMOS Battery for Alienware 17 R5

This lithium CMOS battery replaces the RTC BIOS cell on Dell Alienware 17 R5 laptop motherboards. It is a small coin-type component that keeps system time and firmware settings when the main power is off. The part is new and tested before shipping. It is not compatible with M17X models.

Check Motherboard Model Before Ordering

Verify that the service tag or motherboard sticker confirms an Alienware 17 R5 chassis. The connector and cable length must match the original CMOS battery on that specific board. This item is for the motherboard CMOS circuit only and does not replace the main laptop battery pack.

Fits Inside the Laptop Chassis

The battery slots into the existing CMOS holder on the motherboard and connects via the original header. No extra cables, adapters or tools are required beyond what a standard laptop teardown needs. Replacing a dead cell restores accurate clock and BIOS configuration without further hardware changes.

Highlights

  • Compatible with Dell Alienware 17 R5 motherboards
  • Lithium chemistry provides reliable RTC backup power
  • Replaces faulty or cracked CMOS BIOS batteries
  • Each unit tested before shipment for quality assurance
  • Single replacement battery included in package

Specifications

Battery TypeLithium

Questions about this item

Does the package include only the CMOS battery or are cables or tools supplied?

The package contains one CMOS battery; no cables, connectors or tools are included.

Is this battery intended for the Alienware 17 R5 or the M17X model?

It is made for the Alienware 17 R5 and is explicitly noted as not compatible with the M17X.

What does the CMOS battery actually do once it is installed in the laptop?

It powers the real-time clock and keeps BIOS settings when the main battery is removed or drained.

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