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Small round lithium CMOS battery with wire lead and connector for Acer Aspire 4551

DBTLAP

DBTLAP CMOS battery for Acer Aspire 4551

SKU CH-B4ZS-NFRSF

A lithium CMOS battery that keeps BIOS settings and system time on Acer Aspire 4551 motherboards

  • Battery TypeLithium
  • Keeps BIOS settings alive with a fresh lithium cell
  • Direct replacement for Acer Aspire 4551 motherboards
  • Pre-tested unit arrives ready to install
  • Eliminates CMOS checksum errors and clock drift
  • Single battery included for immediate swap

DBTLAP CMOS Battery for Acer Aspire 4551

This replacement CMOS battery is designed for the Acer Aspire 4551 laptop. It serves the motherboard's real-time clock and BIOS memory, not the main power system. The part is new and tested before shipping to ensure reliable operation.

Lithium coin cell provides long-term BIOS retention

The lithium chemistry delivers stable voltage for CMOS settings and system timekeeping. It comfortably handles the low continuous draw of the RTC circuit for years. Capacity diminishes gradually; once depleted, the system loses date, time and BIOS configuration on power loss.

Direct replacement for the original motherboard cell

This unit matches the form factor and voltage required by the Acer Aspire 4551 motherboard. Installation requires opening the chassis to access the CMOS socket. It is not a main laptop battery and will not power the device during use.

Highlights

  • Keeps BIOS settings alive with a fresh lithium cell
  • Direct replacement for Acer Aspire 4551 motherboards
  • Pre-tested unit arrives ready to install
  • Eliminates CMOS checksum errors and clock drift
  • Single battery included for immediate swap

Specifications

Battery TypeLithium

Questions about this item

Will this CMOS battery fit alongside the original motherboard components in my Acer Aspire 4551?

Yes, it is built as a direct replacement for the Acer Aspire 4551 motherboard and matches the original form factor.

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

Power on the laptop and check that the BIOS retains the correct date, time and hardware settings after a full shutdown.

What comes in the package and do I need any extra cables or tools?

The box contains one CMOS battery only; no cables or tools are included.

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