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Fifty small rectangular silver metal spring contacts with coiled ends, each about 28 by 12 millimetres, stacked together

Unique-Bargains

Unique-Bargains Battery Converter Spring Contact 50Pcs 28mm x 12mm

SKU CH-H53K-S3HZ4

Pack of 50 nickel-plated iron spring contacts convert AA battery polarity in 28 × 12 mm holders

  • Battery TypeBattery Converter
  • 50 spring contacts convert AA compartments to positive terminals
  • Nickel-plated iron ensures reliable conductivity in each piece
  • 28 mm by 12 mm plates fit standard AA battery cases
  • 49 g total weight keeps the pack light for storage
  • 3 mm thickness maintains spring tension for secure contact

50-Piece AA Battery Spring Contacts

This pack supplies fifty nickel-plated iron spring plates sized 28 x 12 x 0.3 mm for AA battery compartments. They convert the negative end to a positive contact inside a two-cell holder. The plates weigh 49 g total and come in a silver tone finish. Batteries are not included.

Check Your Two-Cell Holder Dimensions

Verify that the battery case accepts a 28 mm by 12 mm contact plate with 0.3 mm thickness. The converter is designed only for standard AA button-top cells in a dual-cell layout. Ensure the spring orientation matches the polarity markings inside your device. No other cell sizes or configurations are supported.

Ready-to-Use Nickel-Plated Plates

Each piece arrives pre-finished with nickel plating for corrosion resistance and reliable conductivity. The bulk quantity lets you equip multiple projects or replace worn contacts without further preparation. Simply insert the plates into the holder; no soldering or additional hardware is required.

Highlights

  • 50 spring contacts convert AA compartments to positive terminals
  • Nickel-plated iron ensures reliable conductivity in each piece
  • 28 mm by 12 mm plates fit standard AA battery cases
  • 49 g total weight keeps the pack light for storage
  • 3 mm thickness maintains spring tension for secure contact

Specifications

BrandUnique Bargains
Battery TypeBattery Converter

Questions about this item

What comes in the box and do I need to buy batteries separately?

The package contains 50 nickel-plated iron spring contacts measuring 28 x 12 x 0.3 mm. Batteries are not included and must be purchased separately.

Should I choose the 28 mm or 12 mm version for my AA battery holder?

Each contact is a single piece sized 28 mm long by 12 mm wide by 0.3 mm thick; there is no separate version to select.

How does the 0.3 mm thickness affect fit in a standard AA battery case?

At 0.3 mm thick the spring compresses easily inside a 2×AA holder, providing positive-to-negative conversion without adding bulk.

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