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Small silver coin-cell CMOS battery with two wire leads and a white connector plug

DBTLAP

DBTLAP CMOS Battery for Acer Aspire 8920G-934G64Bn

SKU CH-4F52-MRS4X

Replacement CMOS lithium battery restores BIOS settings for Acer Aspire 8920G-934G64Bn motherboards

  • Battery typeLithium
  • Keeps system clock accurate with lithium CMOS cell
  • Fits Acer Aspire 8920G-934G64Bn motherboard directly
  • Replaces faulty BIOS battery to restore startup settings
  • Tested before shipping for reliable operation
  • New replacement part ready for installation

DBTLAP CMOS Battery for Acer Aspire 8920G

This lithium CMOS battery is designed for the Acer Aspire 8920G-934G64Bn laptop motherboard. It replaces a faulty or depleted RTC battery to maintain BIOS settings and system clock accuracy. The unit is supplied new and tested before shipping. It is not a main laptop power battery.

Steady voltage retention over years

The lithium cell provides a stable low current to the real-time clock and CMOS memory during long periods when the main power is disconnected. It sustains firmware configuration without rapid voltage drop. Performance remains consistent across the intended service life. No recharge cycles are involved.

Check motherboard compatibility before ordering

Verify that your laptop uses the exact Aspire 8920G-934G64Bn motherboard variant before purchase. Confirm the connector type and polarity match the original CMOS battery. This part is for CMOS replacement only and will not power the main system. Buyers needing a primary laptop battery should look elsewhere.

How it compares

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

Price $11.99
Pricier than about 55% of the 10,440 comparable items (median $10.99).

Specifications

Power
Battery typeLithium

Questions about this item

How much power does this CMOS battery draw when the Acer Aspire 8920G runs continuously?

The lithium CMOS battery supplies a tiny standby current to the RTC and CMOS memory; it does not draw power from the mains while the laptop operates.

Which connector or cable must already be present on the motherboard for this battery to fit?

The battery uses the standard two-pin header found on the Acer Aspire 8920G motherboard; no extra cable or adapter is required.

Will this replacement work alongside the original 934G64Bn main battery and charger?

Yes, the CMOS cell is independent — it only maintains BIOS settings and the real-time clock while the main 64-bit system power is off.

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