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Coin cell lithium CMOS battery in plastic wrap

DBTLAP

DBTLAP CMOS Battery for Sony VAIO VGN-CR420

SKU CH-5VDN-GQ9R1

Replacement CMOS RTC battery for Sony VAIO VGN-CR420 motherboards, lithium type, tested before shipping

  • Battery TypeLithium
  • Keeps BIOS settings and clock accurate
  • Lithium chemistry delivers stable low-voltage power
  • Direct replacement for Sony VAIO VGN-CR420 motherboard
  • Pre-tested unit reduces risk of dead-on-arrival
  • Single battery included for immediate installation

Replacement CMOS battery for Sony VAIO VGN-CR420

This lithium coin cell restores the real-time clock and BIOS settings on the specified Sony VAIO model. It arrives new and tested, ready to replace a depleted or leaking original. The part is a direct fit for the motherboard battery holder. No other laptop models are supported by this listing.

Suits owners of a VAIO VGN-CR420

The battery is built for that single chassis; any other Sony VAIO or non-Sony laptop will need a different part. Buyers who want a main power pack or a rechargeable module should look elsewhere. Technicians needing bulk packs or a different voltage will not find it here.

Lithium chemistry coin cell

The cell uses lithium chemistry to hold the system clock and firmware configuration when the main power is off. It is supplied as a single unit, pre-tested by the manufacturer. Compatibility is limited to the VAIO VGN-CR420 motherboard socket.

Highlights

  • Keeps BIOS settings and clock accurate
  • Lithium chemistry delivers stable low-voltage power
  • Direct replacement for Sony VAIO VGN-CR420 motherboard
  • Pre-tested unit reduces risk of dead-on-arrival
  • Single battery included for immediate installation

Specifications

Battery TypeLithium

Questions about this item

Will this CMOS battery fit inside the Sony VAIO VGN-CR420 motherboard compartment?

Yes, the battery is made as a direct replacement for the VGN-CR420 motherboard and matches the original lithium cell dimensions.

How do I install the battery and what step is often missed?

Open the case, unplug the old two-wire connector, plug in the new one the same way, then enter BIOS to reset the date and time — that reset step is the one people forget.

When will this CMOS battery need replacement again?

A lithium CMOS cell typically lasts several years; replace it when the system starts losing the clock or shows CMOS checksum errors at boot.

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