Duracell CR2016 Lithium Coin Battery — Ultra-Thin 3V Power for Slim Devices

The Duracell CR2016 lithium coin battery brings dependable 3-volt power to ultra-thin electronics where every millimeter matters. Common in slim key fobs, wearables, medical sensors, calculators, and compact trackers, this coin cell combines a low-profile build with stable voltage and reliable shelf life. When your device calls for “CR2016,” choosing a quality lithium coin cell helps ensure immediate starts, consistent signal strength, and predictable runtime—without compromising the thin design the device was built around.

Key Advantages of the CR2016

• Stable 3V output: Keeps sensitive electronics running smoothly.
• Ultra-thin form factor: 20 mm in diameter and 1.6 mm thick for tight compartments.
• Reliable shelf life: Lithium chemistry helps maintain freshness in storage.
• Temperature tolerance: Designed to perform across everyday hot/cold swings.
• Leak-resistant construction: Added confidence in devices with delicate contact pads.

Common Applications

• Automotive and access remotes designed for thin coin cells
• Fitness trackers, pedometers, and compact wearables
• Medical sensors (as specified by the device manufacturer)
• Calculators, small toys, and backup memory functions
• Bike computers, keychain gadgets, and mini flashers

Technical Snapshot

• Chemistry: Lithium manganese dioxide (Li-MnO₂)
• Voltage: 3V
• Dimensions: 20 mm diameter × 1.6 mm height
• Standard code: CR2016

Why Size Accuracy Matters

CR20xx cells share the same 20 mm diameter but differ in thickness, which affects both contact pressure and available capacity. A device engineered for CR2016 expects a 1.6 mm cell. Using a thicker battery (CR2025 or CR2032) can prevent the door from closing; using a thinner option is impossible. Always select the exact size specified by your device to ensure a secure fit and designed runtime.

Installation Best Practices

1. Verify the code: Look for “CR2016” on the old battery or in the device manual.
2. Observe polarity: Match the “+” side to the device diagram (often face-up in coin trays).
3. Clean interfaces: Wipe dust and oils from contacts with a dry, lint-free cloth.
4. Check seating: The cell should sit flat with no rocking; close the door fully.
5. Function test: Activate the device immediately to confirm a solid connection.

Storage, Handling, and Safety

• Store sealed: Keep spares in original packaging, away from heat and humidity.
• Avoid metal piles: Don’t store loose coin cells with keys or coins to prevent shorting.
• Keep out of reach: Coin cells can be hazardous if swallowed. Seek immediate care if ingestion is suspected.
• Single-use only: CR2016 is not rechargeable. Use only primary cells unless your device specifies rechargeables.

Performance Tips

• Turn devices off when not needed, if supported.
• Replace multiple coin cells together if your device uses more than one.
• Minimize extreme temperature exposure when possible.
• Rotate spare stock to use the freshest batteries first.

FAQs

How long will a CR2016 last?

Runtime depends on device load and usage frequency. Thin remotes and calculators may run many months; frequent transmitters or alarms will vary.

Can I swap CR2016 with CR2025 or CR2032?

No. Those sizes are thicker and typically won’t fit. Use the exact size your device specifies to ensure proper contact and runtime.

Is the CR2016 safe for outdoor devices?

Yes—within normal environmental ranges. It’s designed for everyday hot/cold swings typical of key fobs and outdoor sensors.

Summary

Duracell’s CR2016 is the ultra-thin 3V solution for devices engineered with minimal depth. Use the correct size, install carefully, and store spares properly for dependable performance and fewer interruptions.