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Small round lithium CMOS battery with two wire leads

DBTLAP

DBTLAP CMOS Battery for HP Pavilion dm1-3090la

SKU CH-ZS9E-5BP90

Lithium CMOS battery keeps BIOS settings and system clock running on HP Pavilion dm1-3090la motherboards

  • Battery TypeLithium
  • New CMOS battery restores BIOS settings
  • Lithium cell provides reliable motherboard power
  • Tested before shipping ensures dependable operation
  • Direct replacement for HP Pavilion dm1-3090la
  • Package includes one ready-to-install battery

HP Pavilion dm1-3090la CMOS Battery

This DBTLAP lithium CMOS battery replaces the BIOS RTC cell on the HP Pavilion dm1-3090la motherboard. It keeps the system clock and firmware settings alive when the main power is off. The part is new and tested before shipping. Buyers who need a main laptop battery will not be served by this item.

Direct Replacement for Failed RTC Cell

It takes the place of a depleted or cracked original CMOS battery that causes date resets and BIOS errors. The jump is worth it when the laptop loses time or shows checksum warnings on every boot. Systems that do not exhibit those symptoms do not need this swap.

Simple Motherboard Swap

Installation requires opening the chassis, locating the coin-cell holder on the board, and pressing the new cell into place with correct polarity. What usually goes wrong is inserting the battery backwards or failing to seat it fully, which leaves the clock dead. No soldering or firmware work is involved.

Highlights

  • New CMOS battery restores BIOS settings
  • Lithium cell provides reliable motherboard power
  • Tested before shipping ensures dependable operation
  • Direct replacement for HP Pavilion dm1-3090la
  • Package includes one ready-to-install battery

Specifications

Battery TypeLithium

Questions about this item

Does this CMOS battery fit the HP Pavilion dm1-3090la motherboard?

Yes, it is built as a direct replacement for the CMOS BIOS RTC battery used in that model.

How do I install the battery, and what step is often missed?

Power off the laptop, disconnect the main battery, open the chassis, unplug the old coin cell and press the new one into the same socket — the step many skip is reconnecting the main battery before closing the case.

When will this CMOS battery need replacing again?

A typical lithium CMOS cell lasts several years; replace it when the system clock loses time or BIOS settings reset after a cold boot.

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