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Small round lithium CMOS battery with two wire leads

DBTLAP

DBTLAP CMOS Battery for Samsung X05 Lithium

SKU CH-2TSM-F7T7F

Replacement CMOS BIOS RTC lithium battery for Samsung X05 laptop motherboards, tested before shipping

  • Battery TypeLithium
  • Keeps BIOS settings and system clock accurate
  • Lithium chemistry provides stable voltage for RTC circuit
  • Direct replacement for Samsung X05 motherboard CMOS battery
  • Tested before shipping to ensure reliable operation
  • New battery restores CMOS function without full motherboard swap

CMOS Battery for Samsung X05

This lithium coin cell replaces the CMOS BIOS RTC battery on Samsung X05 laptop motherboards. It is not a main laptop battery and will not power the system itself. The part arrives new and tested, ready for installation when the original cell fails. Builders repairing a dead real-time clock will find it a direct fit.

Sustained Load Behaviour

The cell delivers a steady low current to keep the real-time clock and BIOS settings alive while the laptop is off or unplugged. It does not face high-drain bursts, so voltage remains stable over months or years of continuous trickle discharge. Capacity loss is gradual and predictable, matching the typical service interval for this type of component.

Practical Limits of Lithium Coin Standard

Lithium chemistry provides a nominal 3 V output with a flat discharge curve, but the format fixes total energy to a few hundred milliampere-hours. Shelf life is finite; cells listed in 2022 may already have lost a small fraction of capacity. The package includes one unit, so systems requiring multiple CMOS cells will need additional purchases.

Highlights

  • Keeps BIOS settings and system clock accurate
  • Lithium chemistry provides stable voltage for RTC circuit
  • Direct replacement for Samsung X05 motherboard CMOS battery
  • Tested before shipping to ensure reliable operation
  • New battery restores CMOS function without full motherboard swap

Specifications

Battery TypeLithium

Questions about this item

How much power does the CMOS battery draw while the laptop runs all day?

The lithium CMOS battery supplies a tiny standby current to keep the real-time clock and BIOS settings alive; it does not draw measurable power from the mains while the Samsung X05 is running.

What must I already have inside the laptop for this replacement to work?

You need a Samsung X05 motherboard with the original CMOS battery socket and the small two-pin connector that matches this lithium cell.

Will this lithium cell work alongside the original main battery and charger I am keeping?

Yes, the CMOS battery operates independently of the main battery and charger, so your existing power system stays unchanged.

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