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Small round silver coin cell battery with attached wires and connector

DBTLAP

DBTLAP CMOS Battery Dell Latitude E6220

SKU CH-6MYA-QKHE9

Replacement CMOS battery keeps the Dell Latitude E6220 system clock and BIOS settings accurate

  • Battery TypeLithium
  • Lithium chemistry keeps BIOS settings stable
  • Direct replacement for Dell Latitude E6220 motherboard
  • Pre-tested unit reduces installation risk
  • Single battery packaged for immediate swap
  • Restores system clock and CMOS memory

Compatible CMOS Battery for Dell Latitude E6220

This new lithium CMOS battery is designed specifically for the Dell Latitude E6220 laptop motherboard. It serves as a direct replacement for the BIOS RTC battery that maintains system time and firmware settings. The unit is tested before shipping to ensure reliable operation. It is intended for laptop motherboards and is not a main laptop power battery.

Lithium Chemistry and Motherboard Function

The lithium cell provides the steady low-voltage power required to keep the real-time clock and CMOS memory active when the main battery is removed or depleted. It comfortably handles the continuous background drain of the system firmware for its rated service life. The battery will eventually run out after several years of constant use, at which point system time and BIOS settings may reset on each boot.

Form Factor and Replacement Limits

This component fits the specific coin-cell holder used on the Latitude E6220 motherboard and is not interchangeable with other form factors or main power packs. Installation requires opening the laptop chassis to access the board, so builders uncomfortable with internal hardware work may prefer professional service. No other laptop models or battery types are supported by this part.

Highlights

  • Lithium chemistry keeps BIOS settings stable
  • Direct replacement for Dell Latitude E6220 motherboard
  • Pre-tested unit reduces installation risk
  • Single battery packaged for immediate swap
  • Restores system clock and CMOS memory

Specifications

Battery TypeLithium

Questions about this item

Will this CMOS battery fit the motherboard in my Dell Latitude E6220 without modification?

The battery is made as a direct replacement for the Dell Latitude E6220 motherboard and matches the original connector and voltage.

How can I confirm the new battery is holding the BIOS settings after I install it?

Power on the laptop, enter the BIOS setup and verify that the date, time and boot order remain correct after a full shutdown.

Does the package include any cables or mounting brackets, or just the battery itself?

The box contains only the single CMOS battery; no extra cables, brackets or tools are supplied.

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