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Coin cell CMOS battery with two-wire connector

DBTLAP

DBTLAP CMOS RTC Battery for Toshiba Satellite L355D-S790

SKU CH-RFM2-AANR8

Replacement CMOS RTC battery for Toshiba Satellite L355D-S790 motherboards

  • Battery TypeLithium
  • Replaces faulty CMOS battery on Satellite L355D-S790
  • Lithium chemistry keeps real-time clock running
  • Tested before shipping for reliable startup
  • One replacement unit included in package
  • Designed for laptop motherboard BIOS memory

Product Identity

This DBTLAP CMOS RTC battery is a lithium coin cell designed to maintain BIOS settings and the real-time clock on the Toshiba Satellite L355D-S790 laptop motherboard. It replaces a depleted or faulty original unit. The part is new and tested before shipping. One battery is included in the package.

Compatibility Guidance

This component suits owners of the specified Toshiba Satellite model who need to restore CMOS function. It is not a main laptop power battery and will not power the system. Buyers who need a primary rechargeable pack or a battery for a different laptop series should look elsewhere.

Critical Specification

The battery uses lithium chemistry to provide the stable low-current supply required by the motherboard RTC circuit. This chemistry decides whether the part matches the original electrical requirements for the L355D-S790.

Highlights

  • Replaces faulty CMOS battery on Satellite L355D-S790
  • Lithium chemistry keeps real-time clock running
  • Tested before shipping for reliable startup
  • One replacement unit included in package
  • Designed for laptop motherboard BIOS memory

Specifications

Battery TypeLithium

Questions about this item

How often will the lithium CMOS battery need replacement in a Toshiba Satellite L355D-S790?

The lithium CMOS battery typically lasts several years; replace it when the system clock loses time or BIOS settings reset.

What is the first limit reached under sustained use of this CMOS battery?

The voltage gradually drops until the real-time clock can no longer maintain accurate time and date.

Does the CMOS battery generate noticeable heat or noise during continuous operation?

No, the lithium cell operates silently and produces no perceptible heat in normal use.

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