We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small round lithium CMOS battery for HP 3105m

DBTLAP

DBTLAP CMOS Battery for HP 3105m

SKU CH-DZTA-WD5SK

A lithium CMOS battery that keeps the HP 3105m motherboard clock and BIOS settings running

  • Battery TypeLithium
  • Keeps system clock accurate with lithium chemistry
  • Direct fit for HP 3105m motherboard
  • Ready to install straight from the pack
  • Tested before shipping for reliable startup
  • Replaces faulty CMOS battery to restore BIOS settings

HP 3105m CMOS Battery

This DBTLAP lithium coin cell replaces the original RTC battery on HP 3105m laptop motherboards. It keeps the real-time clock and BIOS settings alive when the main power is removed. The part is intended for technicians or owners servicing that specific model. It is not a main laptop battery and will not power the system.

Thermals and Power

As a passive CMOS cell it draws micro-amps and generates no measurable heat during normal operation. No fan or active cooling is involved and the component runs completely silent. Power consumption is negligible and has no impact on the laptop’s main battery life.

Included Accessory

The package supplies one tested CMOS battery ready for installation. No cables, brackets, software or additional hardware are bundled. The single cell is the only item required to restore BIOS time and configuration retention.

Highlights

  • Keeps system clock accurate with lithium chemistry
  • Direct fit for HP 3105m motherboard
  • Ready to install straight from the pack
  • Tested before shipping for reliable startup
  • Replaces faulty CMOS battery to restore BIOS settings

Specifications

Battery TypeLithium

Questions about this item

How do I install this CMOS battery in my HP 3105m laptop?

Locate the coin-cell socket on the motherboard, remove the old cell, and press the new lithium battery in with the positive side facing up.

Will this CMOS battery need periodic replacement?

Yes, lithium coin cells typically last several years; replace it when the system clock starts losing time or BIOS settings reset on every boot.

What is the first sign this CMOS battery is failing under continuous use?

The real-time clock drifts or resets, and BIOS configuration defaults reappear each time the HP 3105m is powered on.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.