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Small silver coin-cell battery with two wire leads and a white connector plug

DBTLAP

DBTLAP CMOS Battery for Acer Aspire 7741Z-4643

SKU CH-GN3Q-2A35E

Lithium CMOS battery replaces the BIOS clock cell on Acer Aspire 7741Z-4643 motherboards

  • Battery TypeLithium
  • Keeps system clock accurate with lithium CMOS cell
  • Direct replacement for Acer Aspire 7741Z-4643 motherboard
  • Pre-tested unit ensures reliable BIOS power retention
  • Eliminates CMOS checksum errors from depleted battery
  • Single battery included for straightforward motherboard installation

Targeted Replacement

This DBTLAP CMOS battery is built specifically for the Acer Aspire 7741Z-4643 laptop motherboard. It serves owners who need to restore BIOS settings and real-time clock function after the original cell fails. Buyers looking for a main laptop power battery will not find it here.

What Changes

Swapping the depleted coin cell with this tested lithium unit restores persistent CMOS memory so the system keeps correct time, date and firmware configuration between shutdowns. The package includes only the single battery, so no cables, tools or software are supplied.

Installation Notes

Fitting the battery requires opening the laptop chassis to reach the motherboard socket, a step that varies by chassis design. The connector must be oriented correctly; forcing it backwards can damage the header pins. Static precautions are advised because the board is exposed during the swap.

Highlights

  • Keeps system clock accurate with lithium CMOS cell
  • Direct replacement for Acer Aspire 7741Z-4643 motherboard
  • Pre-tested unit ensures reliable BIOS power retention
  • Eliminates CMOS checksum errors from depleted battery
  • Single battery included for straightforward motherboard installation

Specifications

Battery TypeLithium

Questions about this item

How often will the CMOS battery for the Acer Aspire 7741Z-4643 need replacement?

The lithium CMOS battery typically lasts several years; replace it when the system clock loses time or BIOS settings reset after the laptop is powered off.

What is the first limit reached when the DBTLAP CMOS battery runs continuously on the motherboard?

The limiting factor is the lithium cell's finite charge capacity; once depleted, the real-time clock and CMOS memory lose power and settings are lost.

Does the CMOS battery generate any noise, heat or measurable power draw while the Acer Aspire 7741Z-4643 runs all day?

No, the passive lithium cell produces no noise, negligible heat and only microamp-level current to maintain the real-time clock and BIOS memory.

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