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PX640 battery adapter for Minolta Hi-Matic E/F, Olympus 35 EC & Yashica FC/GX

PX640 battery adapter for Minolta Hi-Matic E/F, Olympus 35 EC & Yashica FC/GX

Type
€19,95 EUR
€19,95 EUR
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  • Replaces the obsolete PX640 (1.35V mercury) battery with modern cells.
  • Uses affordable zinc-air hearing aid batteries (Type 675) for stable 1.4V voltage.
  • Prevents measurement errors caused by 1.5V alkaline batteries.
  • Made from sturdy PLA+ for long-lasting use.

Contents

  • 1x PX640 battery adapter (PLA+)
  • 1x zinc-air battery (Type 675)

Technical Specifications

  • Material: Technical plastic (PLA+)
  • Fits: Zinc-air battery Type 675 (PR44)
  • Replaces: PX640, E640N, V640PX, MR52, NR52, PX13
  • Voltage: approx. 1.35V – 1.4V (chemically stable)

Description

Many classic cameras like the Minolta Hi-Matic E or the Olympus 35 EC were designed for the constant voltage of 1.35V mercury batteries. Since these batteries (PX640) are no longer available, this adapter offers a practical solution. It is precisely made and adapts a common 675 zinc-air cell to the PX640 format.

Unlike alkaline batteries, whose voltage steadily drops and is initially too high (1.5V), zinc-air cells keep the voltage constant at about 1.4V. This ensures correct exposure values without recalibrating the camera. The adapter itself is purely mechanical and passes the current directly.

Important note: NEVER charge in the original charger. Zinc-air batteries are not rechargeable.

Compatibility

The adapter replaces the PX640 battery in the following models:

  • Canon: Canodate E-N, Cine Canonet 8, Date-Matic, Motor Zoom 8 EEE
  • Chinon: 35 EE-II
  • Fuji/Fujica: Date, GA, GE, GER
  • Minolta: Hi-Matic 5, CS, E, ES, F, FP
  • Olympus: 35 EC, 35 EC2, 35 ECR, 35 ED
  • Pentax: Spotmeter (FL, I, II, III, 1°/21°)
  • Ricoh: Elnica 35, 35M, F
  • Yashica: Electro 35 FC, Electro 35 GX, Lynx 14E, Lynx-5000E, TL-Electro
  • Others: Miranda Sensoret, Petri ES Auto, Sekonic L-88 Microlite
SKU: 1012b Show full details

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