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Small round lithium CMOS battery in plastic wrapper

DBTLAP

DBTLAP CMOS RTC Battery for Sony VAIO VPCW12AVJ

SKU CH-XCS8-YY6T5

Keeps system time and BIOS settings on Sony VAIO VPCW12AVJ motherboards

  • Battery TypeLithium
  • Keeps system clock accurate with lithium CMOS cell
  • Direct replacement for Sony VAIO VPCW12AVJ motherboard
  • Ready to install with pre-attached connector
  • Single battery tested before shipment
  • Restores BIOS settings after power loss

Direct replacement for Sony VAIO VPCW12AVJ

This lithium CMOS RTC battery restores BIOS settings and real-time clock function on the specified Sony VAIO model. It arrives new and tested, ready to replace a depleted or damaged original. The part is intended for motherboard-level service, not for main laptop power.

Suited for owners of the exact VAIO VPCW12AVJ

Technicians or owners servicing this specific notebook will find a direct fit. Builders working on other Sony models, different brands, or desktop boards should look elsewhere because the connector and form factor are matched to this single chassis.

Lithium chemistry and tested-before-shipping

The cell uses lithium chemistry to maintain long-term charge retention for CMOS memory. Every unit is tested before shipping, so the single specification that confirms suitability is the verified compatibility with the VAIO VPCW12AVJ motherboard.

Highlights

  • Keeps system clock accurate with lithium CMOS cell
  • Direct replacement for Sony VAIO VPCW12AVJ motherboard
  • Ready to install with pre-attached connector
  • Single battery tested before shipment
  • Restores BIOS settings after power loss

Specifications

Battery TypeLithium

Questions about this item

How often will the CMOS RTC battery need replacement in a Sony VAIO VPCW12AVJ?

The lithium CMOS battery typically lasts several years before the system clock drifts or BIOS settings reset, signalling it is time for a new one.

What is the first limitation noticed when the laptop runs continuously for long periods?

The CMOS battery itself is not under load during sustained use; the first limit will be the main laptop battery or thermal throttling of the processor.

Does the CMOS battery generate any noticeable heat or noise during all-day operation?

No, the lithium CMOS battery is a passive component that produces no heat, noise or measurable power draw while the laptop is running.

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