Exell MRB625 1.35V Mercury Replacement Battery – PX625 Camera & Light Meter Battery
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Reliable 1.35V mercury replacement battery for vintage cameras and light meters
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Zinc air chemistry delivers stable voltage for accurate exposure readings
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Designed to replace discontinued PX625 mercury batteries
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Consistent performance for precision photography equipment
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Mercury-free and environmentally safer alternative
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Exell MRB625 1.35V Mercury Replacement Battery – PX625 Camera & Light Meter Battery
The Exell MRB625 1.35V Mercury Replacement Battery is специально designed to replace discontinued PX625 mercury batteries used in vintage cameras and light meters. With a stable 1.35V output, this zinc air battery ensures accurate exposure readings and dependable performance, making it an essential solution for maintaining classic film photography equipment. It closely replicates the voltage characteristics of original mercury cells without the environmental risks.
Built with modern zinc air technology, the MRB625 provides reliable, long-lasting power once activated. Ideal for photographers, collectors, and technicians, this battery ensures your legacy devices continue to operate as intended. Its mercury-free design offers a safer alternative while preserving the precision required by sensitive analog electronics.
Key Features:
- Exact 1.35V Output – No Exposure Errors
- Matches original mercury battery voltage for precise light meter performance.
- Replaces PX625 / PX13 / MR-9
- Direct replacement—fits and functions like the original battery.
- Designed for Vintage Cameras & Meters
- Trusted solution for classic film cameras and exposure meters.
- Stable Zinc-Air Technology
- Consistent voltage output—no drift like alkaline batteries.
- Mercury-Free Replacement
- Modern, environmentally safer design.
Product Specifications
- Brand: Exell
- Model: MRB625
- Battery Type: Mercury Replacement
- Voltage: 1.35V
- Chemistry: Zinc Air (Mercury-Free)
- Size: PX625 / 625
- Diameter: Approx. 15.6mm
- Height: Approx. 5.95mm
- Shelf Life: Limited once activated (air-activated)
- Rechargeable: No
Applications / Uses
- Vintage film cameras
- Light meters and exposure meters
- Photographic equipment requiring stable 1.35V
- Analog camera accessories
- Specialty electronics
Common Devices That Use MRB625 / PX625 Batteries
- Canon FTb, AE-1 (with adapter)
- Minolta SRT series
- Olympus OM-1
- Pentax Spotmatic
- Yashica and other vintage cameras
- Handheld light meters (Sekonic, Gossen)
Ideal For
- Film photography enthusiasts
- Vintage camera collectors
- Professional photographers using analog equipment
- Camera repair technicians
- Photography hobbyists
- Light meter users
Cross References
- PX625
- PX13
- EPX625G
- V625U
- MR-9
- 625A (alkaline alternative)
How to Activate (IMPORTANT)
This is a zinc-air battery and must be activated before use:
- Remove the protective tab (this allows air to enter and activates the battery)
- Wait at least 1 minute before installing (up to 3–5 minutes for best performance)
- Insert into your device with correct polarity
- The battery begins discharging once activated—even if not in use
- Do NOT remove the tab until ready to install
- Replacing the tab will NOT deactivate the battery
Zinc-air batteries activate through exposure to oxygen and require a short “breathing time” to reach full voltage and performance.
Pro Tips:
- Wait time improves performance and lifespan
- Store sealed until use
- Ideal shelf life: up to ~10 years (unactivated)
| UPC | 819891010766 |
|---|---|
| Diameter | 15.6mm |
| Height | 5.95mm |
| Condition | New |
| Brand | ExellBattery |
| Chemistry | Zinc Air |
| Output Voltage | 1.35 |
| Rechargeable | No |
| Voltage | 1.35V |
