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Small coin cell lithium CMOS battery for ASUS Pro55S

DBTLAP

DBTLAP CMOS Battery for ASUS Pro55S

SKU CH-A81Q-21X6R

Replacement CMOS RTC battery for ASUS Pro55S motherboards, tested before shipping

  • Battery typeLithium
  • Reliable BIOS settings retention with lithium CMOS cell
  • Direct replacement for ASUS Pro55S motherboard RTC battery
  • Ready to install — tested before shipping
  • High-quality construction replaces faulty or cracked originals
  • Single battery included for immediate motherboard repair

Direct replacement for ASUS Pro55S

This DBTLAP CMOS battery is a direct replacement for the ASUS Pro55S motherboard. It restores the real-time clock and BIOS settings when the original cell is exhausted. The lithium coin cell arrives new and tested before shipping. Installation returns the system clock and firmware configuration to normal operation.

Suits owners of the Pro55S laptop

It suits owners of the ASUS Pro55S laptop who need to replace a depleted CMOS battery. It is not a main laptop battery and will not power the portable computer. Buyers who want a primary power source should look at a full laptop battery pack instead.

Single lithium cell restores BIOS

The package includes one lithium CMOS cell that handles the motherboard RTC and CMOS memory. It comfortably maintains date, time and firmware settings for the typical service life of a coin cell. The battery runs out when the cell voltage drops too low to sustain the real-time clock, requiring another replacement.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $10.99
Typical for this category: the median of 10,440 items is $10.99.

Specifications

Power
Battery typeLithium

Questions about this item

What type of laptop motherboard is the DBTLAP CMOS battery compatible with?

It is designed for the ASUS Pro55S laptop motherboard as a CMOS RTC replacement.

Can the DBTLAP CMOS battery be used alongside an older main laptop battery?

Yes, it powers the BIOS clock independently while the main battery handles system power.

How can I confirm the DBTLAP CMOS battery is working after installation?

The system clock should keep accurate time and BIOS settings should be retained after a full shutdown.

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