Energizer Blisters Pack of 3Êof 1ÊCR2Ê3ÊV Lithium Battery

Energizer CR2 Lithium Ultra Photo Battery

The CR2 lithium battery is a compact power source designed for high‑performance devices that demand reliable, long‑lasting energy. This particular model from Energizer delivers a steady 3 V output and boasts an impressive capacity of 800 mAh, ensuring extended operation in demanding environments.

Key Technical Specifications

• Voltage: 3 V (standard for CR2 format)
• Capacity: 800 mAh – ideal for cameras, laser rangefinders, and other precision instruments.
• Dimensions: Diameter 1.56 cm; conforms to the standard CR2 size for universal compatibility.
• Operating Temperature Range: -40 °C to +60 °C – suitable for extreme outdoor use.
• Storage Temperature Range: -40 °C to +60 °C – maintains performance even after long periods of inactivity.
• Packaging: Individual blister (Ampoule) – protects the cell from moisture and mechanical damage.

Technology Behind the Performance

The Energizer CR2 employs lithium‑thionyl chloride chemistry, a technology that offers several advantages over traditional alkaline or nickel‑metal hydride cells:

• High Energy Density: Lithium‑based cells store more energy per gram, allowing smaller batteries to power devices for longer periods.
• Low Self‑Discharge: The internal resistance is minimal, so the battery retains its charge over extended storage times.
• Stable Voltage Output: Unlike alkaline cells that drop in voltage as they discharge, lithium CR2s maintain a near‑constant 3 V until the end of life.
• Wide Temperature Tolerance: The chemistry remains stable across a broad temperature spectrum, making it reliable for fieldwork and harsh climates.

Ideal Applications

This battery is engineered for devices that require high power density and long life cycles. Common uses include:

• Cameras & Camcorders: Especially high‑resolution models where every millivolt counts.
• Laser Rangefinders: Devices that need consistent voltage for accurate distance calculations.
• Portable Medical Equipment: Instruments such as pulse oximeters and blood pressure monitors.
• Security Systems: Alarm panels, motion detectors, and other low‑power monitoring devices.
• Scientific Instruments: Field sensors, data loggers, and GPS units that operate in remote locations.

Longevity & Reliability

The 800 mAh capacity translates to a typical lifespan of several months for moderate‑draw devices. For high‑drain applications like digital cameras, you can expect around 30–40 hours of continuous use before replacement is necessary. The battery’s robust construction also resists leakage and corrosion, ensuring safe operation even when stored for years.

Environmental Considerations

Energizer’s CR2 lithium cells are designed with minimal environmental impact. The use of lithium‑thionyl chloride reduces the need for heavy metals found in other chemistries, and the blister packaging is lightweight, lowering transportation emissions. When disposed of properly, these batteries can be recycled through specialized e‑waste programs.

Comparison with Other CR2 Options

While many manufacturers offer CR2 batteries, Energizer’s model stands out due to its combination of high capacity, low self‑discharge, and wide temperature tolerance. Competitors may provide similar voltage levels but often fall short in one or more of the following areas:

• Capacity: Many alkaline CR2s cap at 600 mAh.
• Temperature Range: Some batteries cannot operate reliably below -20 °C.
• Shelf Life: Alkaline cells may lose up to 30% of their charge after a year.

Installation and Handling Tips

• Insert Correctly: Place the positive (+) end toward the device’s terminal marked with a plus sign.
• Avoid Short Circuits: Do not expose the battery terminals to metal objects while inserting or removing.
• Store Properly: Keep in a cool, dry place; avoid exposure to extreme temperatures beyond the specified range.
• Dispose Responsibly: Recycle through local e‑waste facilities rather than throwing it in regular trash.

Conclusion

The Energizer CR2 Lithium Ultra Photo Battery is a premium power solution for professionals and enthusiasts who demand reliability, longevity, and performance across diverse operating conditions. Its 800 mAh capacity, robust lithium chemistry, and wide temperature tolerance make it the preferred choice for high‑end cameras, precision instruments, and critical safety devices.

By choosing this battery, users gain confidence that their equipment will stay powered when it matters most, without compromising on size or environmental responsibility.