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Small coin cell CMOS battery for Toshiba Libretto U105

DBTLAP

DBTLAP CMOS battery for Toshiba Libretto U105

SKU CH-C0V7-NK7NW

Replacement CMOS RTC battery for the Toshiba Libretto U105 motherboard, tested before shipping

  • Battery TypeLithium
  • Designed for Toshiba Libretto U105 motherboard compatibility
  • Lithium chemistry provides reliable CMOS power retention
  • Replaces faulty or cracked RTC battery units
  • Pre-tested before dispatch to ensure function
  • Single battery included for direct installation

Direct replacement for Libretto U105

This CMOS battery is a direct replacement for the Toshiba Libretto U105 laptop. It restores the system clock and BIOS settings when the original cell is exhausted. Buyers who need a main power battery for portable use will not find that function here.

Low-drain lithium cell operation

The lithium chemistry supplies the very small current needed to keep the real-time clock and CMOS memory alive while the notebook is off. Normal use produces no audible noise and draws negligible power from the main system.

Single tested unit in the package

The box contains one CMOS RTC battery that has been tested before shipping. No cables, mounting hardware, drivers or configuration software are included or required for installation.

Highlights

  • Designed for Toshiba Libretto U105 motherboard compatibility
  • Lithium chemistry provides reliable CMOS power retention
  • Replaces faulty or cracked RTC battery units
  • Pre-tested before dispatch to ensure function
  • Single battery included for direct installation

Specifications

Battery TypeLithium

Questions about this item

How do I install the CMOS battery on the Libretto U105 motherboard and what step is often missed?

Open the chassis, locate the coin-cell holder on the mainboard, remove the old cell noting the polarity marking, insert the new lithium cell with the same orientation, then enter BIOS to reset the date and time — the step most people forget.

What maintenance or replacement will this CMOS battery need later?

The lithium coin cell typically lasts several years; when the system clock drifts or BIOS settings reset at power-off, simply replace it with another CR-series cell of the same diameter.

What limit appears first during sustained use of this CMOS battery?

The cell’s shelf-life and discharge rate set the practical limit — after multiple years the voltage drops below the threshold needed to keep the real-time clock and CMOS RAM powered while the Libretto U105 is off.

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