Panasonic CR2412

Panasonic CR2412 Lithium Coin Cell (3V)

Panasonic's CR2412 is an ultra‑thin 3V lithium manganese dioxide coin cell designed for space‑constrained electronics that still need stable, long‑term power. Typical uses include slim automotive key fobs, compact sensors, and selected medical or industrial devices that specify the CR2412 size.

When to Choose It

• Use if your device explicitly calls for CR2412 or requires a very thin (1.2 mm) 24.5 mm coin cell.
• Use for low‑to‑moderate average drain applications that need long standby life and steady 3V output.
• Avoid if your device demands higher capacity or sustained high current; thicker cells like CR2430 or CR2450 may be better if the device permits them.

Key Specifications

Size code	CR2412
Diameter × Height	24.5 mm × 1.2 mm
Nominal voltage	3.0 V
Nominal capacity	~100 mAh
Chemistry	Lithium Manganese Dioxide (Li/MnO2)
Operating temperature	-30°C to +60°C (-22°F to +140°F)
Shelf life	Up to 10 years (proper storage)
Typical continuous drain	~0.2 mA
Typical max pulse	Up to ~7 mA (device‑dependent)
Approx. weight	~2 g
Environmental	Mercury‑free; leak‑resistant design

Compatibility and Alternatives

• Not interchangeable with CR2032, CR2430, or CR2450. These are thicker and will not fit holders designed for 1.2 mm cells.
• If your device allows thicker cells for longer life: CR2430 (~3.0 mm, ~270 mAh) or CR2450 (~5.0 mm, ~500 mAh) can offer more capacity—but only if specifically supported.
• Do not stack coin cells to “make up” thickness; stacking changes voltage and can damage devices.
• Always match the exact size code printed on the device or in the manual: CR2412 only.

Estimated Runtime Examples

Actual life varies with temperature, pulse load, and duty cycle. The figures below are typical ranges:

• Automotive key fob (standby microamps, short transmit bursts): about 1–3 years with moderate use.
• Thin BLE beacon or sensor (10–25 µA average): roughly 6–18 months.
• Memory backup (2–5 µA average): about 2–5 years.

Installation and Care

1. Power off the device if possible. Note battery orientation; the + side typically faces up.
2. Handle by the edges. Avoid touching both terminals; skin oils can increase contact resistance.
3. Ensure clean contacts; lightly wipe with a dry, lint‑free cloth if needed.
4. Do not bend, puncture, or short‑circuit the cell.
5. Store spares in original packaging in a cool, dry place; avoid heat and direct sunlight.

Safety and Recycling

• Coin cells are a choking and ingestion hazard. Keep away from children and pets. If swallowed, seek immediate medical attention.
• Do not recharge, disassemble, or incinerate.
• For end‑of‑life, tape the terminals and recycle through battery drop‑off locations or local hazardous waste programs.

FAQ

Is CR2412 the same as CR2032?

No. CR2412 is thinner (1.2 mm vs 3.2 mm) and will not fit holders designed for CR2032. Always use the exact size specified by the device.

Can I replace two CR2016 cells with one CR2412?

No. Stacking cells changes thickness and often voltage. Only use the configuration specified by the manufacturer to avoid damage.

How long do stored CR2412 batteries last?

Up to 10 years in cool, dry storage due to low self‑discharge. Avoid high heat and humidity.

Will cold weather affect performance?

Yes. The cell is rated to -30°C (-22°F), but pulse performance drops in the cold. Warming the device to room temperature restores normal output.

Is the CR2412 rechargeable?

No. It is a primary (non‑rechargeable) lithium cell. Use only once and recycle.