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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.

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

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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