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Small coin-cell lithium battery in metallic finish

DBTLAP

DBTLAP CMOS battery for Compaq Presario F500

SKU CH-2R65-PKZY9

Lithium CMOS battery replaces the BIOS RTC cell on Compaq Presario F500 motherboards

  • Battery typeLithium
  • Lithium chemistry delivers stable CMOS power
  • Direct replacement for Compaq Presario F500 motherboard
  • Pre-tested unit ensures reliable BIOS timekeeping
  • Single battery included for immediate installation
  • New condition guarantees full rated capacity

Direct replacement for Compaq Presario F500

This DBTLAP CMOS battery is a lithium coin cell designed to fit the Compaq Presario F500 laptop motherboard. It restores the real-time clock and BIOS settings that are lost when the original cell fails. The part is supplied new and tested before shipping.

Replaces a dead or leaking original CMOS cell

Swap this battery when the system clock resets on every boot, BIOS settings disappear or the laptop shows a CMOS checksum error. The jump is worth it if the machine otherwise runs well and you want to avoid a motherboard swap for a single coin-cell fault.

Simple two-wire plug installation

The battery ships with its connector attached, so installation is a matter of opening the case, unplugging the old cell and plugging in the new one. Common issues are routing the short cable without strain and forgetting to reset the BIOS date and time after the swap.

How it compares

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

Price $9.99
Cheaper than about 60% of the 10,440 comparable items (median $10.99).

Specifications

Power
Battery typeLithium

Questions about this item

Will this CMOS battery fit inside the Compaq Presario F500 motherboard compartment?

The battery is designed as a direct replacement for the Compaq Presario F500 motherboard and matches the original form factor for the CMOS BIOS RTC slot.

How do I install this CMOS battery in my Compaq Presario F500, and what step is commonly missed?

Power off the laptop, disconnect the main battery, open the case, unplug the old CMOS battery connector, connect the new one, then reassemble — the step often missed is disconnecting the main battery first.

When will this lithium CMOS battery need replacement in a Compaq Presario F500?

A lithium CMOS battery typically lasts several years; replace it when the system clock loses time, BIOS settings reset, or CMOS checksum errors appear at boot.

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