Procell Constant CR2025

Procell Constant CR2025 Overview

The Procell Constant CR2025 is a professional 3V lithium coin cell designed for steady, low‑drain loads in compact devices. It fits the CR2025 form factor (20 mm diameter, 2.5 mm thickness) and delivers reliable, long‑lasting power for everyday controls and sensors.

Best For

• Key fobs and car remotes
• Remote controls and slim pointers
• Small sensors and IoT tags (low, steady draw)
• Digital scales, thermometers, and timers
• RTC/memory backup in electronics

Key Points

• Voltage: 3V (lithium manganese dioxide chemistry)
• Typical capacity: 150–170 mAh (varies by device load and temperature)
• Size: 20 mm diameter × 2.5 mm height (IEC: CR2025)
• Low self‑discharge for multi‑year shelf storage
• Non‑rechargeable; do not mix with other chemistries or sizes

When to Choose CR2025 vs Other Coin Cells

• Choose CR2025 if your device specifies CR2025 or needs a thinner cell than CR2032.
• Consider CR2032 if the device supports it and you need more capacity (3.2 mm thick vs 2.5 mm).
• Consider CR2016 for ultra‑slim devices that require a thinner battery (1.6 mm thick) with lower capacity.

Note: Do not stack two thinner cells (e.g., two CR2016) to replace a thicker one; it can damage the device or cause overheating.

Typical Specs for the CR2025 Format

Chemistry	Lithium Manganese Dioxide (Li‑MnO2)
Nominal Voltage	3.0 V
Capacity (typical)	150–170 mAh
Dimensions	20.0 × 2.5 mm
Operating Temp	Approx. −20°C to +60°C (device‑dependent)
Rechargeable	No

Values above represent common ranges for CR2025 lithium coin cells; actual performance depends on the specific device and duty cycle.

Runtime Expectations

• Key fob: often 1–3 years (light, intermittent use)
• Slim remote control: about 6–24 months
• Digital scale or thermometer: about 6–18 months
• Memory/RTC backup: often multi‑year, depending on standby current

High pulse loads or cold temperatures reduce runtime.

Installation and Care

1. Verify the device calls for CR2025 (check manual or battery bay).
2. Power the device off if possible, then note polarity; the “+” side typically faces up.
3. Clean contacts with a dry, lint‑free cloth; avoid oils and moisture.
4. Insert the new cell without bending tabs; close the compartment securely.

Storage and Safety

• Store in a cool, dry place away from metal objects and extreme heat.
• Keep out of reach of children and pets—coin cells are an ingestion hazard.
• Tape over both sides of used cells before disposal or recycling.
• Do not carry loose cells in pockets or mix old and new batteries.

Alternatives and Compatibility Notes

• If your device requires longer life and accepts 3.2 mm thickness, a CR2032 usually offers higher capacity.
• Do not substitute rechargeable look‑alikes (e.g., LIR2025) unless the device explicitly supports them.
• Match only exact size and chemistry to avoid fit or voltage issues.

FAQ

Is the Procell Constant CR2025 rechargeable?

No. It is a primary (single‑use) lithium coin cell. Do not attempt to recharge.

Can I replace a CR2032 with a CR2025?

Only if the device allows it. A CR2025 is thinner and has less capacity. Follow the device’s specified size.

What causes short battery life in key fobs?

Frequent use, stuck buttons, cold weather, or a fob that wakes frequently can shorten runtime. Check for stuck keys and store the fob away from strong RF sources.

How should I dispose of a CR2025?

Recycle through battery collection programs where available. Tape both sides of used cells to reduce short‑circuit and ingestion risk.

What’s the difference between CR2016, CR2025, and CR2032?

All are 3V lithium coin cells with 20 mm diameter except CR2016 (1.6 mm thick), CR2025 (2.5 mm), and CR2032 (3.2 mm). Thicker cells generally provide more capacity if the device supports the size.