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DBTLAP

DBTLAP CMOS Battery for Toshiba Satellite U305-S2804

SKU CH-9PBT-YZNZ9

Lithium CMOS RTC battery replaces the motherboard clock cell on Toshiba Satellite U305-S2804 laptops

  • Battery TypeLithium
  • Keeps BIOS settings accurate with dedicated CMOS RTC battery
  • Direct fit for Toshiba Satellite U305-S2804 motherboard
  • Lithium cell delivers stable 3 V timekeeping power
  • Pre-tested unit reduces risk of dead-on-arrival replacement
  • Single battery replaces faulty or cracked CMOS module

Replacement CMOS battery for Satellite U305-S2804

This DBTLAP lithium cell is a direct replacement for the CMOS RTC battery used in the Toshiba Satellite U305-S2804. It restores the real-time clock and BIOS settings when the original coin cell fails. The unit is tested before shipping and arrives new in a single-piece package. Builders repairing this specific laptop model will find it a straightforward swap.

Lithium coin cell with plug-in connector

The battery uses a standard lithium chemistry and ships with a pre-attached connector that mates to the motherboard header on the Satellite U305-S2804. No soldering is required, so installation is limited to opening the chassis, unplugging the old cell, and seating the new one. The compact form factor fits the original battery compartment without modification.

Limited to CMOS power retention on one model

This cell only maintains BIOS configuration and system time when main power is removed; it does not power the laptop itself. Compatibility is confined to the Satellite U305-S2804, so owners of other Toshiba models or different brands will need a different part. The lithium chemistry provides a typical multi-year lifespan under normal standby conditions.

Highlights

  • Keeps BIOS settings accurate with dedicated CMOS RTC battery
  • Direct fit for Toshiba Satellite U305-S2804 motherboard
  • Lithium cell delivers stable 3 V timekeeping power
  • Pre-tested unit reduces risk of dead-on-arrival replacement
  • Single battery replaces faulty or cracked CMOS module

Specifications

Battery TypeLithium

Questions about this item

Does this battery plug directly into the Satellite U305-S2804 motherboard or does it need soldering?

The replacement cell ships with a pre-attached connector that plugs into the motherboard header, so no soldering is required.

Will the cable reach the CMOS socket on a Satellite U305-S2804 board?

The lead length matches the original routing for this model, letting the cell sit in the factory holder without stretching.

What is the first step when fitting this CMOS cell in a Satellite U305-S2804?

Disconnect the main battery and hold the power button for several seconds to drain residual power before unplugging the old cell.

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