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Small silver coin cell CMOS battery for Compaq Presario A900

DBTLAP

DBTLAP CMOS RTC Battery for Compaq Presario A900

SKU CH-9F1M-JF0JZ

A lithium CMOS battery that keeps the system clock and BIOS settings on Compaq Presario A900 motherboards

  • Battery TypeLithium
  • Compatible with Compaq Presario A900 motherboards
  • Lithium chemistry provides stable CMOS power retention
  • Replaces faulty or cracked RTC batteries directly
  • Single battery tested before shipment for reliability
  • Designed specifically for motherboard BIOS clock function

Compatible CMOS Battery for Presario A900

This DBTLAP lithium cell replaces the CMOS RTC battery on Compaq Presario A900 laptop motherboards. It is a motherboard coin cell, not a main laptop power pack. The unit is tested before shipping and arrives new. Builders repairing date or BIOS reset issues will find it a direct fit.

Lithium Coin-Cell Practical Limits

Lithium coin cells hold a low charge capacity suited only for real-time clock and CMOS memory retention. They cannot power the laptop itself or any high-drain component. Voltage drops slowly over years; once the cell is depleted the system loses BIOS settings and time on power loss.

Check Motherboard Compatibility Before Ordering

Verify that the target machine is a Compaq Presario A900 and that the existing CMOS holder accepts a standard lithium coin cell. This part is not for main battery replacement and will not fit other laptop models or desktop boards. Confirm the socket type matches before purchase.

Highlights

  • Compatible with Compaq Presario A900 motherboards
  • Lithium chemistry provides stable CMOS power retention
  • Replaces faulty or cracked RTC batteries directly
  • Single battery tested before shipment for reliability
  • Designed specifically for motherboard BIOS clock function

Specifications

Battery TypeLithium

Questions about this item

Which battery type suits the Presario A900 CMOS slot?

The DBTLAP cell is a lithium CMOS RTC battery built to fit the Compaq Presario A900 motherboard socket.

What does the lithium chemistry mean once the cell is installed?

Lithium chemistry holds the real-time clock and BIOS settings for years without mains power.

What connection standard does the battery use and what limits its fit?

It plugs directly into the motherboard CMOS header; the physical header size and pin spacing on the A900 board dictate compatibility.

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