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Small silver coin cell CMOS battery for Acer Aspire 9813WKMi

DBTLAP

DBTLAP CMOS Battery for Acer Aspire 9813WKMi

SKU CH-W0Q4-BCW91

Replacement CMOS battery for Acer Aspire 9813WKMi laptops, tested before shipping

  • Battery typeLithium
  • Compatible replacement for Acer Aspire 9813WKMi motherboard
  • Lithium cell delivers stable CMOS power retention
  • Tested before shipping to ensure reliable operation
  • Direct replacement for faulty or cracked BIOS battery
  • Single battery included for immediate installation

Compatible CMOS Battery for Aspire 9813WKMi

This DBTLAP lithium CMOS battery is a direct replacement for the RTC backup cell on Acer Aspire 9813WKMi laptop motherboards. It restores BIOS settings retention and system clock accuracy when the original coin cell is depleted or damaged. The part is supplied new and pre-tested for immediate installation.

Thermals Noise and Power Draw

As a passive lithium coin cell, the battery generates no heat and produces zero audible noise during operation. Its self-discharge current is negligible, placing no measurable load on the motherboard power rails. Normal use imposes no thermal or acoustic impact on the laptop chassis.

Upgrade Context and Value

This unit replaces a failed or leaking CMOS battery that causes lost BIOS configuration, incorrect system time or boot errors on the specified model. The jump is worthwhile whenever the existing cell no longer holds charge, which typically occurs after several years of service. It is not suited for repairing main laptop power batteries or unrelated motherboard models.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $10.99
Typical for this category: the median of 10,440 items is $10.99.

Specifications

Power
Battery typeLithium

Questions about this item

How do I install this CMOS battery on the Acer Aspire 9813WKMi motherboard, and what step is often missed?

Locate the coin-cell holder on the mainboard, note the polarity marking, press the new cell in with the positive side facing up, then enter the BIOS to reset the date and time — this final step is frequently forgotten.

What maintenance or replacement will this DBTLAP CMOS battery need later?

The lithium cell typically maintains BIOS settings for several years; when the system clock drifts or settings reset at every cold start, simply swap in a fresh unit of the same type.

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

The gradual voltage drop of the lithium chemistry eventually falls below the threshold needed to keep the real-time clock and CMOS RAM powered during AC-off periods.

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