Exell MRB625 1.35V Mercury Replacement Battery - Replaces PX625, PX13, MR-9

Keep your vintage camera or light meter performing accurately with the Exell MRB625 1.35V Mercury Replacement Battery. Designed as a dependable replacement for discontinued PX625 mercury batteries, this zinc air battery delivers the stable 1.35V output required by classic film cameras, handheld light meters, and precision analog equipment. Unlike common alkaline substitutes that can cause voltage drift and inaccurate readings, the MRB625 closely matches the original mercury battery voltage for more reliable meter performance.

Built with modern mercury-free zinc-air technology, the Exell MRB625 is an excellent solution for photographers,

5pc Exell MRB625 1.35V Zinc Air Battery Z625PX PX625 PX13 V625PX

Item Description

Exell MRB625 1.35V Mercury Replacement Battery - Replaces PX625, PX13, MR-9

Keep your vintage camera or light meter performing accurately with the Exell MRB625 1.35V Mercury Replacement Battery. Designed as a dependable replacement for discontinued PX625 mercury batteries, this zinc air battery delivers the stable 1.35V output required by classic film cameras, handheld light meters, and precision analog equipment. Unlike common alkaline substitutes that can cause voltage drift and inaccurate readings, the MRB625 closely matches the original mercury battery voltage for more reliable meter performance.

Built with modern mercury-free zinc-air technology, the Exell MRB625 is an excellent solution for photographers, collectors, repair technicians, and analog camera enthusiasts who need a safe and effective PX625 replacement. Once activated, it provides consistent power for sensitive devices that depend on exact voltage to maintain correct exposure readings and dependable operation.

Key Features

  • Exact 1.35V output for accurate exposure readings and dependable light meter performance
  • Replaces PX625, PX13, and MR-9 battery types
  • Designed for vintage cameras, exposure meters, and analog photography equipment
  • Zinc-air chemistry provides stable voltage with less drift than alkaline alternatives
  • Mercury-free design offers a safer modern replacement for discontinued mercury cells
  • Ideal for preserving performance in classic film photography gear

Product Specifications

  • Brand: Exell
  • Model: MRB625
  • Battery Type: Mercury Replacement
  • Voltage: 1.35V
  • Chemistry: Zinc Air (Mercury-Free)
  • Battery Size: PX625 / 625
  • Diameter: Approx. 15.6mm
  • Height: Approx. 5.95mm
  • Rechargeable: No
  • Shelf Life: Limited once activated (air-activated)

Ideal Applications

  • Vintage film cameras
  • Light meters and exposure meters
  • Photographic equipment requiring stable 1.35V power
  • Analog camera accessories
  • Specialty electronics

Ideal For

  • Film photography enthusiasts
  • Vintage camera collectors
  • Professional photographers using analog equipment
  • Camera repair technicians
  • Photography hobbyists
  • Light meter users

Cross Reference Part Numbers

PX625, PX13, EPX625G, V625U, MR-9, 625A (alkaline alternative)

Important Activation Instructions

  • Remove the protective tab to allow air to enter and activate the battery
  • Wait at least 1 minute before installing; 3 to 5 minutes is recommended for best performance
  • Insert the battery with correct polarity
  • The battery begins discharging once activated, even if not installed in a device
  • Do not remove the tab until you are ready to use the battery
  • Replacing the tab will not deactivate the battery

Why Choose the Exell MRB625?

The Exell MRB625 is a trusted choice for users who need a precise PX625 battery replacement for vintage cameras and light meters. With stable 1.35V output, mercury-free zinc-air chemistry, and compatibility with many classic devices, it helps maintain the accuracy and performance that older analog equipment was designed to deliver.

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