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DBTLAP CMOS battery for Dell Latitude 5540, coin-cell form factor, silver finish

DBTLAP

DBTLAP CMOS Battery for Dell Latitude 5540

SKU CH-0N2D-1GA20

A new lithium CMOS battery that keeps the real-time clock and BIOS settings on a Dell Latitude 5540

  • Battery TypeLithium
  • Direct replacement for Dell Latitude 5540
  • Maintains BIOS settings and system clock
  • Lithium cell tested before shipping
  • Ready-to-install CMOS battery included
  • Fixes faulty or cracked original battery

Compatible Dell Latitude 5540 CMOS Battery

This lithium CMOS battery replaces the RTC BIOS cell on Dell Latitude 5540 motherboards. It maintains system time and firmware settings when the main power is disconnected. The unit is new and tested before shipping. One battery is included in the package.

Check Motherboard Compatibility Before Ordering

Verify that your laptop uses the Latitude 5540 platform and that the existing CMOS cell has failed or shows low voltage symptoms. This part is for the motherboard coin cell only, not the main laptop battery pack. Ensure you are comfortable opening the chassis to access the board.

Suitable for DIY Motherboard Repairs

Ideal for technicians or owners replacing a dead BIOS battery on a Latitude 5540. Not intended for users seeking a main power battery or those unwilling to disassemble the notebook. Buyers needing a different form factor or voltage should look elsewhere.

Highlights

  • Direct replacement for Dell Latitude 5540
  • Maintains BIOS settings and system clock
  • Lithium cell tested before shipping
  • Ready-to-install CMOS battery included
  • Fixes faulty or cracked original battery

Specifications

Battery TypeLithium

Questions about this item

What comes in the package and do I need any extra parts to install it?

The package includes one CMOS battery for the Dell Latitude E5540 motherboard; no additional components are required for replacement.

Is this the only version available for the Latitude E5540 or are there different capacities to choose from?

This is a single lithium CMOS RTC BIOS battery built to the standard specification for the Latitude E5540; there are no alternative capacities or versions offered.

What does the lithium CMOS battery actually do once it is fitted inside the Latitude E5540?

It powers the real-time clock and preserves BIOS settings when the main laptop battery is removed or depleted, keeping system time and configuration intact.

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