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Small round lithium CMOS battery with two wire leads and a white connector

DBTLAP

DBTLAP Laptop CMOS Battery for Sony Vaio VPC-SB1A9E/B

SKU CH-CQRR-3YVFN

A lithium CMOS battery that keeps the system clock and BIOS settings on compatible Sony Vaio laptops

  • Battery TypeLithium
  • Keeps BIOS settings accurate with lithium CMOS cell
  • Direct replacement for Sony Vaio VPC-SB1A9E/B motherboards
  • Ready to install — tested before shipping
  • Fixes date-reset and boot errors from a dead battery
  • Single-unit pack covers one motherboard repair

DBTLAP CMOS Battery for Sony Vaio

This DBTLAP lithium CMOS battery is a direct replacement for the BIOS RTC cell on Sony Vaio VPC-SB1A9E/B laptop motherboards. It restores system time and BIOS settings that are lost when the original coin cell is depleted. The package includes one tested battery ready for installation. It is not a main laptop power battery.

Check connector and board layout before ordering

Verify that the existing CMOS cell on your motherboard matches the physical dimensions and connector orientation of this replacement. The battery is designed for the specific Vaio model listed and may not fit other series or revisions. Confirm the part number on the old cell if accessible.

Steady voltage retention over years of standby

Lithium chemistry provides a stable 3 V output across the long, low-current duty cycle of a real-time clock circuit. The cell maintains voltage without the sharp drop-off seen in short-drain applications. Each unit is tested before shipping to confirm it holds charge correctly for sustained motherboard operation.

Highlights

  • Keeps BIOS settings accurate with lithium CMOS cell
  • Direct replacement for Sony Vaio VPC-SB1A9E/B motherboards
  • Ready to install — tested before shipping
  • Fixes date-reset and boot errors from a dead battery
  • Single-unit pack covers one motherboard repair

Specifications

Battery TypeLithium

Questions about this item

What comes in the box and do I need to buy any cables or connectors separately?

The package includes one CMOS battery only. No cables, connectors or additional parts are required for installation.

Which version of this battery fits the Sony Vaio VPC-SB1A9E/B model?

This single lithium CMOS battery is built to match the VPC-SB1A9E/B motherboard socket, so there is no capacity or version choice to make.

What does the lithium chemistry mean for real-world CMOS retention?

Lithium chemistry provides stable 3 V output for years, keeping BIOS settings and the real-time clock alive while the laptop is unplugged.

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