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Small round lithium CMOS battery for Alienware 17 R3

DBTLAP

DBTLAP CMOS Battery for Dell Alienware 17 R3

SKU CH-A3ZZ-5ZQ4P

Lithium CMOS battery maintains BIOS settings and real-time clock on Dell Alienware 17 R3 motherboards

  • Battery TypeLithium
  • Ready replacement for Dell Alienware 17 R3 motherboard
  • Lithium chemistry keeps BIOS clock running
  • Tested before shipping for reliable start-up
  • Exact fit — not for M17X models
  • Single unit packaged for quick installation

Direct Motherboard Replacement

This DBTLAP lithium CMOS battery is a direct replacement for the Dell Alienware 17 R3 motherboard. It restores the real-time clock and BIOS settings when the original cell fails. The unit is tested before shipping and arrives new in a single-piece package.

Long-Term Charge Retention

Lithium chemistry provides stable voltage output over years of continuous trickle load on the motherboard. The cell maintains the system clock and CMOS memory without interruption through daily power cycles and extended standby periods.

Not for M17X Models

This part is confirmed for the Alienware 17 R3 only and will not fit Dell M17X chassis variants. Buyers with different Alienware models or other laptop brands must verify the exact motherboard battery specification before ordering.

Highlights

  • Ready replacement for Dell Alienware 17 R3 motherboard
  • Lithium chemistry keeps BIOS clock running
  • Tested before shipping for reliable start-up
  • Exact fit — not for M17X models
  • Single unit packaged for quick installation

Specifications

Battery TypeLithium

Questions about this item

Does the CMOS battery draw noticeable power or generate heat while the Alienware 17 R3 runs all day?

The lithium CMOS battery only powers the real-time clock when the laptop is off; it draws negligible current and produces no measurable heat during daily use.

What must I already have to install this replacement CMOS battery in my Alienware 17 R3?

You need a compatible Alienware 17 R3 motherboard with the correct two-pin connector and basic tools to open the chassis and reach the battery socket.

Will this CMOS battery work if I keep the original Alienware 17 R3 motherboard and other legacy components?

Yes, it is a direct replacement for the factory RTC cell on the Alienware 17 R3 motherboard and functions identically with all existing hardware.

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