Panasonic CR2016 3V Lithium Coin Cell

A slim, reliable coin cell for compact electronics that specify CR2016. Ideal for key fobs, watches, calculators, fitness trackers, small sensors, and memory backup.

When to Choose This Battery

• Use if your device explicitly calls for CR2016 (20 mm diameter, 1.6 mm thick).
• Best for low to moderate pulse loads (e.g., button presses, timekeeping, sensor memory).
• Avoid if the device requires higher continuous current or a thicker cell (CR2025/CR2032). Do not stack two CR2016s to mimic a thicker battery.

At‑a‑Glance Specs

Expected Runtime (Typical)

• Car key fob (daily use): about 1–3 years.
• Watch/timekeeper: roughly 1–2 years depending on features (alarms, lighting).
• Calculator/remote sensor: about 2–4 years under light use.
• Memory backup: multi‑year support; replace per device maintenance schedule.

Actual life varies with temperature, load, and duty cycle.

Compatibility and Cross‑References

• Also labeled as: CR2016, ECR2016, DL2016 (brand equivalents).
• Not the same as CR2025 (2.5 mm) or CR2032 (3.2 mm). Even if diameter fits, thickness and capacity differ; use only what your device specifies.

Installation Tips

1. Power off the device if possible.
2. Open the battery compartment and note polarity; most devices place the “+” side facing up.
3. Handle by the edges to keep contacts clean.
4. Insert the new cell in the same orientation; do not force.
5. Close securely and test the device.

Storage and Care

• Store spares in original packaging, cool and dry (around 68°F/20°C), away from metal objects.
• Avoid mixing old and new cells.
• Do not recharge, short‑circuit, or expose to heat.

Safety and Disposal

• Coin cells are a choking and ingestion hazard. Keep away from children and pets. If swallowed, seek immediate medical help.
• Tape the terminals of used cells and recycle at a battery collection point. Do not dispose in household trash or fire.

Alternatives

• If your device physically accepts a thicker cell and specifies it, CR2025 or CR2032 offer higher capacity. Only switch if the manufacturer allows it.
• For high‑drain or rechargeable needs, look for device‑specific rechargeable solutions; CR2016 itself is not rechargeable.

FAQ