Duracell CR2430 Lithium Coin Battery — Reliable 3V Power in a 24 mm Format

The Duracell CR2430 lithium coin battery delivers steady 3-volt energy for devices that require a 24 mm coin cell but don’t need the thickness of a CR2450. With a 24 mm diameter and 3.0 mm height, it’s commonly used in automotive key fobs, medical devices (as specified), compact security sensors, and specialized electronics. If “CR2430” appears in your manual or on the old battery, this is the size you need for proper fit, consistent contact pressure, and designed runtime.

Notable Advantages

• Consistent 3V output: Supports predictable operation of sensors and transmitters.
• Balanced capacity: Thicker than many 20 mm cells while remaining slimmer than CR2450.
• Temperature-ready: Performs across typical hot/cold swings in home, car, and outdoor uses.
• Leak-resistant construction: Added protection for precise, delicate electronics.

Where You’ll Find CR2430

• Keyless entry remotes and access systems designed for 24 mm cells
• Security sensors and small smart-home transmitters
• Medical monitors and instruments (per manufacturer)
• Sports accessories and compact electronics
• LED indicators and beacons

Technical Profile

• Chemistry: Lithium manganese dioxide (Li-MnO₂)
• Voltage: 3V
• Dimensions: 24 mm diameter × 3.0 mm height
• Form factor: CR2430

CR2430 vs. CR2450 vs. 20 mm Cells

Within the 24 mm family, CR2430 (3.0 mm thick) offers a slimmer alternative to CR2450 (5.0 mm) and typically less capacity. Compared to 20 mm cells (CR2032/2025/2016), it is wider and often used when devices need a different balance of footprint, contact geometry, and runtime. Always use the size your device specifies; swapping sizes can cause poor contact, short life, or a battery door that won’t latch.

Installation Guidance

1. Confirm size: Ensure your device calls for “CR2430.”
2. Match polarity: Align the “+” side with the diagram inside the battery compartment.
3. Clean the contacts: Remove dust and skin oils with a dry, lint-free cloth before insertion.
4. Seat flat: The cell should lie flat, with the door closing smoothly—no forcing.
5. Function test: For remotes or sensors, test immediately at close range to verify signal.

Storage and Safety

• Store sealed: Keep spares in original packaging in a cool, dry location.
• No loose storage: Do not toss coin cells into drawers with keys or coins; short circuits can occur.
• Keep away from children: Coin cells are small; ingestion is dangerous and requires immediate medical care.
• Primary cell only: CR2430 is non-rechargeable—use rechargeables only if your device specifies them.

Maximizing Battery Life

• Use the exact size and chemistry your device specifies.
• Disable unnecessary beeps or indicators if your device allows it.
• Power down when not in use, where possible.
• Keep contact surfaces clean to reduce resistance and voltage drop.

FAQs

How long does a CR2430 last?

Runtime varies by device load and usage. It generally provides longer life than thin 20 mm cells in devices designed for the 24 mm platform, but less than a CR2450.

Is CR2430 interchangeable with CR2450?

No. Thickness and capacity differ. Use the size your device specifies for correct fit and performance.

Will a 3V coin cell damage my device?

When you use the correct size and chemistry (CR2430 3V lithium) as specified by your device, it’s the intended power source.

Summary

Duracell’s CR2430 offers a dependable balance of size and runtime for 24 mm coin cell devices. Install the correct size, maintain clean contacts, and store spares properly for reliable day-to-day performance.