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Small round lithium CMOS battery with wire connector

DBTLAP

DBTLAP CMOS Battery for Dell Latitude E7440

SKU CH-YK26-XA5XV

Lithium CMOS battery keeps the Dell Latitude E7440 system clock and BIOS settings running

  • Battery TypeLithium
  • Compatible replacement for Dell Latitude E7440
  • Lithium chemistry provides reliable CMOS power
  • Tested before shipping to ensure function
  • New CMOS BIOS RTC battery for motherboard
  • Single unit included for direct installation

Product Identity

This DBTLAP CMOS battery is a lithium coin cell designed to maintain BIOS settings and the real-time clock on a Dell Latitude E7440 motherboard. It replaces a depleted or faulty original unit so the system retains date, time and firmware configuration when main power is removed. The part is supplied new and tested before shipping.

Fit and Limits

The cell suits owners of a Latitude E7440 who need to restore CMOS functionality after a battery failure. It is not a main laptop battery and cannot power the device during use. Buyers looking for a rechargeable pack to run the notebook away from mains power should look elsewhere.

Sustained Behaviour

Under continuous standby duty the lithium chemistry delivers a stable voltage for the CMOS circuit over an extended period. The battery is not subject to high-current pulses, so its output remains consistent without the voltage sag seen in primary cells under heavy load.

Highlights

  • Compatible replacement for Dell Latitude E7440
  • Lithium chemistry provides reliable CMOS power
  • Tested before shipping to ensure function
  • New CMOS BIOS RTC battery for motherboard
  • Single unit included for direct installation

Specifications

Battery TypeLithium

Questions about this item

Does this CMOS battery come ready to fit the Dell Latitude E7440 motherboard?

Yes, it is built to match the original CMOS socket on the Latitude E7440 so it plugs straight in.

Will this lithium CMOS cell keep the clock and BIOS settings on an older Latitude E7440 that has been in storage?

A fresh lithium cell restores the RTC circuit, so the system will hold the time and BIOS configuration again.

How can I confirm the battery is working after I install it?

Power on the laptop, enter the BIOS and verify that the date and time stay correct after a full shutdown.

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