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Small round lithium CMOS battery with wire connector

DBTLAP

DBTLAP CMOS Battery for Dell Latitude E6220

SKU CH-JQ4V-B7YES

A new lithium CMOS battery to restore BIOS settings on Dell Latitude E6220 laptops

  • Battery TypeLithium
  • Compatible with Dell Latitude E6220 motherboard
  • Lithium chemistry maintains CMOS settings reliably
  • Replaces faulty or cracked RTC battery
  • Tested before shipping for dependable operation
  • Package includes one CMOS battery ready to install

DBTLAP CMOS Battery for Dell Latitude E6220

This lithium CMOS battery replaces the BIOS RTC cell on Dell Latitude E6220 motherboards. It restores system clock and BIOS settings when the original coin cell fails. The part is intended for technicians or owners servicing that specific laptop model.

Thermals noise and power draw

As a passive lithium coin cell the battery generates no heat and produces no audible noise during operation. It draws negligible current only when the laptop is unplugged to maintain real-time clock and CMOS memory.

Build quality and connectors

The battery ships new and is tested before dispatch to verify voltage and capacity. It uses the standard two-pin connector that mates directly with the motherboard header on the Latitude E6220. Installation requires opening the chassis and removing the old cell, so basic disassembly skill is needed. The package contains only the single replacement battery.

Highlights

  • Compatible with Dell Latitude E6220 motherboard
  • Lithium chemistry maintains CMOS settings reliably
  • Replaces faulty or cracked RTC battery
  • Tested before shipping for dependable operation
  • Package includes one CMOS battery ready to install

Specifications

Battery TypeLithium

Questions about this item

How do I install the CMOS battery on a Dell Latitude E6220, and what step is often missed?

Disconnect the main battery and power adapter first, then swap the CMOS cell and reconnect the main battery before powering on.

What maintenance will this CMOS battery need later?

No routine maintenance is required; the lithium cell runs until the system clock drifts or BIOS settings reset, then it is replaced.

What limit appears first under sustained use of this CMOS battery?

The lithium chemistry gradually loses voltage, so the first sign of end-of-life is the real-time clock losing time when the laptop is unplugged.

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