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PX400 battery adapter set for Pentax Spotmatic SP & Fujica ST

PX400 battery adapter set for Pentax Spotmatic SP & Fujica ST

Type
€19,95 EUR
€19,95 EUR
Bundle offer Sold out
🟢 In stock · 25,000+ satisfied customers since 2019

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  • Original PX400 mercury batteries are no longer available.
  • Modern 1.5V alkaline batteries cause incorrect readings.
  • Smaller replacement batteries fit loosely in the compartment without an adapter.

Scope of Delivery

  • 2x Centering ring (rubber)
  • 6x Zinc-air battery type P312

Technical Specifications

  • Material: Rubber (O-ring)
  • Battery type: Zinc-air P312
  • Voltage: 1.35V (under load)
  • Replaces: PX400 / EPX400 / V400PX

Description

The old Spotmatics and Fujicas were designed for the constant voltage of 1.35V mercury batteries. Since these cells are no longer available today, this set offers a functional solution. We mechanically adapt modern zinc-air hearing aid batteries (type P312) to the required format.

The included rubber ring centers the smaller cell precisely in the battery compartment and ensures secure contact. Electrically, the zinc-air cells are the ideal replacement: they deliver a stable 1.35V under load, ensuring correct exposure meter function without complicated adjustment.

Note: Zinc-air batteries are activated by removing the seal. Wait about one minute before inserting them into the camera.

Compatibility

Suitable for various cameras, including:

  • Fujica: ST601, ST701 [...]
  • Pentax: Spotmatic 1000, Spotmatic 500, Spotmatic SP, Spotmatic SP-II, Spotmatic SP-IIA [...]

Not sure if the battery fits your camera?
Here is a complete list of all cameras compatible with the PX400 battery type.

SKU: 1032 Show full details

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