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Small coin cell CMOS battery for Dell Latitude E7440

DBTLAP

DBTLAP CMOS Battery Compatible For Dell Latitude E7440

SKU CH-ZXT7-JXDWQ

Lithium CMOS battery replaces the motherboard RTC cell on Dell Latitude 7440 laptops

  • Battery TypeLithium
  • Compatible with Dell Latitude E7440 motherboard
  • Lithium cell keeps BIOS clock running
  • Tested before shipping for reliability
  • Replaces faulty or cracked CMOS unit
  • Single battery included in package

Compatible CMOS Battery for Latitude 7440

This lithium coin cell replaces the CMOS BIOS RTC battery on Dell Latitude E7440 motherboards. It is a new component tested before shipping and intended for motherboard real-time clock power, not the main laptop battery.

Suitable for owners of the Latitude E7440

Buyers needing a main laptop power pack or a battery for a different laptop model should look elsewhere. This part only addresses the small motherboard cell that keeps BIOS settings and time.

Direct replacement restores BIOS settings

The single cell provides the voltage headroom required for CMOS memory retention. It runs out when the cell voltage drops too low to maintain the real-time clock, causing lost settings on each boot.

Highlights

  • Compatible with Dell Latitude E7440 motherboard
  • Lithium cell keeps BIOS clock running
  • Tested before shipping for reliability
  • Replaces faulty or cracked CMOS unit
  • Single battery included in package

Specifications

Battery TypeLithium

Questions about this item

Does this CMOS battery need any special tools to install in my Latitude E7440?

No special tools are required; the battery plugs directly into the motherboard header.

Will this replacement keep the system clock and BIOS settings on a Dell Latitude E7440 running older components?

Yes, the lithium cell restores RTC power so the clock and CMOS settings are retained across shutdowns.

How can I confirm the new CMOS battery is working after fitting it in the E7440?

Boot the laptop, enter BIOS, verify the date and time hold after a full power-off cycle.

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