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Coin cell CMOS battery for Samsung NP900X3C laptop motherboard

DBTLAP

DBTLAP CMOS Battery Compatible For Samsung NP900X3C

SKU CH-AM7N-2EC9A

Replacement lithium CMOS battery for Samsung NP900X3C motherboards, tested before shipping

  • Battery TypeLithium
  • Keeps system clock and BIOS settings accurate
  • Lithium chemistry delivers reliable long-term power
  • Direct replacement for Samsung NP900X3C motherboards
  • Each unit tested before shipping for dependable operation
  • Restores CMOS function when original battery fails

DBTLAP CMOS Battery For Samsung NP900X3C

This DBTLAP CMOS battery is a direct replacement for the Samsung NP900X3C laptop motherboard. It supplies the low-voltage power that keeps BIOS settings and the real-time clock active when the main battery is removed. The lithium cell arrives new and tested, ready to restore boot-time configuration retention. It is not a main laptop battery and will not power the system during use.

Thermals Noise And Power Draw

As a passive coin cell, the battery generates no heat and produces no audible noise during operation. Its current draw is in the microampere range, placing negligible load on the motherboard circuitry. No active cooling or additional power connections are required for normal function. The component sits idle until the system loses primary power.

Upgrade From Failed Or Missing Cell

This part replaces a depleted, leaking or physically damaged CMOS cell that causes date resets, BIOS checksum errors or boot failures. The jump is worth it when the laptop loses time settings after shutdown or prompts for BIOS defaults on every start. It does not address main battery life, charging issues or motherboard faults beyond the RTC circuit. Buyers who need a primary power source should look elsewhere.

Highlights

  • Keeps system clock and BIOS settings accurate
  • Lithium chemistry delivers reliable long-term power
  • Direct replacement for Samsung NP900X3C motherboards
  • Each unit tested before shipping for dependable operation
  • Restores CMOS function when original battery fails

Specifications

Battery TypeLithium

Questions about this item

How do I install the CMOS battery in my Samsung NP900X3C and which step is often missed?

Open the laptop case, locate the coin-cell holder on the motherboard, remove the old cell, insert the new lithium CMOS battery with the positive side facing up, then reassemble; many people forget to reconnect the main battery before closing the chassis.

What maintenance or replacement will this CMOS battery need later?

The lithium CMOS battery requires no routine maintenance; when the system clock begins to drift or BIOS settings reset after shutdown, simply replace the cell with another compatible unit.

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

The battery holds BIOS settings and the real-time clock continuously; its practical limit is the gradual voltage drop over years that eventually causes the clock to lose time or settings to clear at power-off.

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