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Small rectangular CMOS backup battery with two wire leads and a white connector, pale blue shrink-wrap sleeve

Cameron Sino CMOS Backup Battery 2.4V 20mAh

SKU CH-3W1Y-ZDY93

CMOS backup battery, 2.4V 20mAh, fits many Sony VAIO models including PCG-7134M and VGN-FZ21M

  • Battery voltage rating2.4 V
  • Battery capacity20 mAh
  • Compatible withAdapter
  • Product weight28
  • 4 V 20 mAh capacity keeps CMOS settings alive
  • Fits VAIO PCG-7134M, PCG-7154M, VGN-FZ21M and other listed models
  • Replaces Sony part numbers 2/V15H, 2/V20H, FL2/V11H-WR, PCG-91111M, Varta 2/V30H
  • Compact 31.07 × 12.04 × 4.40 mm size at 2.8 g fits tight motherboard space
  • Built to ISO 9001, RoHS and CE standards with overcharge, over-discharge and short-circuit protection

CMOS Backup for Sony VAIO Laptops

This 2.4 V 20 mAh lithium cell replaces the original CMOS backup battery in a wide range of Sony VAIO notebooks. It maintains system time and BIOS settings when the main battery is removed or depleted. The part matches the listed Sony part numbers and fits the models named in the compatibility list.

Replaces Aged or Dead Original Cells

When the factory CMOS cell no longer holds a charge, the laptop loses its clock and BIOS configuration on every power loss. Swapping in this new 20 mAh unit restores reliable retention without requiring a mainboard repair. The upgrade is worth it whenever the system prompts for time and date at boot or shows CMOS checksum errors.

Fits Directly on the Motherboard Header

The battery measures 31.07 x 12.04 x 4.40 mm and weighs 2.8 g, matching the original footprint and connector pitch. No soldering or adapter cables are needed; it plugs into the existing header. The compact size leaves surrounding components untouched and frees the builder from sourcing model-specific OEM packs.

How it compares

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

Price $12.99
Cheaper than about 88% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameCameron sino
Model nameVAIO PCG-7134M, VAIO PCG-7154M, VAIO PCG-C1C, VAIO PCG-C1MAH, VAIO PCG-C1MR/BP, VAIO PCG-C1MRX, VAIO PCG-C1MSX, VAIO PCG-C1MT, VAIO PCG-C1MV, VAIO PCG-C1MVC, VAIO PCG-C1MVM, VAIO PCG-C1MVP, VAIO PCG-C1MVPM, VAIO PCG-C1MZX, VAIO PCG-C1VG, VAIO PCG-C1VGT, VAIO PCG-C1VJ, VAIO PCG-C1VJ/BP, VAIO PCG-C1VM, VAIO PCG-C1VM/T, VAIO PCG-C1VMT, VAIO PCG-C1VN, VAIO PCG-C1VP, VAIO PCG-C1VPK, VAIO PCG-C1VR/BP, VAIO PCG-C1VRX/K, VAIO PCG-C1VS/BW, VAIO PCG-C1VSX/K, VAIO PCG-C1XA, VAIO PCG-C1XE, VAIO PCG-C1XF, VAIO PCG-C1XG, VAIO PCG-C1XG/BP, VAIO PCG-C1XN, VAIO PCG-C1XS, VAIO PCG-C2, VAIO PCG-FR130,
Part number2/V15H, 2/V20H, FL2/V11H-WR, PCG-91111M, Varta 2/V30H
Power
Battery voltage rating2.4 V
Battery capacity20 mAh
Compatibility
Compatible withAdapter

Questions about this item

Will the 31.07 x 12.04 x 4.40 mm battery fit the CMOS slot on my VAIO VGN-FZ21M?

Yes, those dimensions match the original CMOS module used in the VGN-FZ21M and the other listed VAIO models.

Which way does the connector plug into the motherboard header on a PCG-7134M?

The keyed two-pin connector only seats one way; align the notch with the slot before pressing it in — forcing it backwards bends the pins.

How often should I replace this 20 mAh CMOS cell in a VAIO VGN-NR38M?

Expect three to five years; when the system clock starts losing time while the main battery is out, swap in a fresh cell.

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