Varta V625U Battery – 1.5V PX625 Replacement

Varta V625U Battery for Vintage Film Cameras

The Varta V625U Battery is a 1.5V alkaline button cell battery commonly used as a modern replacement for the classic PX625 mercury batteries once found in many vintage film cameras.

Many analog cameras from the 1960s and 1970s were designed to use 625-type batteries to power their internal light meters. Since mercury batteries are no longer manufactured, the Varta V625U offers a practical mercury-free alternative for photographers who want to keep older cameras working.

This battery is especially useful for vintage camera users, collectors, analog photographers, and anyone testing or restoring classic film cameras. It can help power the light meter in many older camera models, depending on compatibility.

Important Voltage Note

The original PX625 mercury battery had a voltage of 1.35V. The Varta V625U battery is 1.5V.

Because of this difference, some vintage camera light meters may give slightly inaccurate readings. In many cases, photographers compensate by adjusting the ISO setting, comparing with an external light meter, or using the camera with manual exposure experience.

If you need the most accurate voltage match for certain vintage meters, some photographers prefer zinc-air replacements such as MRB625 batteries. The Varta V625U is a convenient alkaline replacement, but it may not be perfect for every camera meter.

Technical Specifications

Battery Type: Alkaline button cell
Voltage: 1.5V
Model: V625U
Replacement For: PX625, PX13, EPX625
Diameter: Approx. 15.6 mm
Height: Approx. 6 mm
Mercury-Free: Yes

Common Compatible Cameras

The Varta V625U battery may be used in many classic film cameras that require a 625-type battery.

Examples include:

Canon:

• Canon FTb
• Canon TX
• Canon TL

Minolta:

• Minolta SRT series
• Minolta SRT 101
• Minolta SRT 201
• Minolta SRT 303

Pentax:

• Pentax Spotmatic series

Olympus:

• Olympus 35 SP
• Olympus 35 RC

Other Cameras:

• Praktica MTL series
• Fujica ST series
• Konica Autoreflex series
• Rollei 35 early versions

Compatibility can vary depending on the exact camera model and meter design. Please check your camera manual or battery compartment before buying.

Who This Battery Is For

This battery is useful for:

• Vintage film camera owners
• Analog photographers
• Camera collectors
• People testing old cameras
• Photographers using built-in light meters
• Anyone looking for a PX625 replacement battery

FAQ

What is the Varta V625U Battery?

The Varta V625U is a 1.5V alkaline button cell battery used as a modern replacement for PX625, PX13, and EPX625 batteries in many vintage film cameras.

Is the Varta V625U the same as the original PX625 mercury battery?

No. The original PX625 mercury battery was 1.35V, while the Varta V625U is 1.5V. This voltage difference may affect light meter accuracy in some cameras.

Can I use the Varta V625U in vintage film cameras?

Yes, many vintage film cameras that require a 625-type battery can use the Varta V625U, but light meter accuracy may vary depending on the camera.

Will my camera light meter be accurate with this battery?

Some cameras may read slightly differently because the Varta V625U is 1.5V instead of 1.35V. You may need to adjust the ISO setting or compare readings with an external light meter.

Which cameras commonly use V625U batteries?

Common examples include Canon FTb, Minolta SRT series, Pentax Spotmatic series, Olympus 35 SP, Olympus 35 RC, Praktica MTL series, Fujica ST series, Konica Autoreflex series, and some early Rollei 35 models.

Is this battery mercury-free?

Yes. The Varta V625U is mercury-free.

Is there a more accurate PX625 replacement?

For some cameras, zinc-air replacements such as MRB625 may offer voltage closer to the original 1.35V mercury cell. The Varta V625U is a practical alkaline option, but not always the most precise for every light meter.