Duracell Coppertop C Alkaline (MN1400)

Duracell Coppertop C batteries are single-use 1.5V alkaline cells sized for devices that need more current than AA, such as flashlights, toys, portable radios, and lanterns. They deliver dependable power, store well for emergencies, and are widely compatible where C (MN1400) is specified.

When to choose (and when to avoid)

• Use if: You need ready-to-use batteries with long shelf life for flashlights, radios, or toys used intermittently.
• Use if: You want simple replacements without chargers or maintenance.
• Consider alternatives if: The device is used daily or draws high current (e.g., bright LED lanterns, motorized toys). Rechargeable NiMH C cells usually cost less over time.
• Avoid: In devices that explicitly require rechargeable cells or a different chemistry.

Key specs

Chemistry	Alkaline (Zn/MnO₂)
Size / Code	C / MN1400 (IEC: LR14)
Nominal voltage	1.5 V
Typical capacity	~3,000–8,000 mAh (varies with load, temperature, and cutoff)
Dimensions	Ø 26.2 mm × 50.0 mm
Operating range	−20 °C to 54 °C (−4 °F to 130 °F)
Shelf life	Up to 12 years in storage (manufacturer-rated, store at room temperature)
Rechargeable	No (single-use)

Common uses

• LED flashlights and lanterns
• Portable AM/FM radios and emergency weather radios
• Motorized and sound/light toys
• Small appliances and instruments that specify C (LR14)

Example runtimes (estimates)

Actual runtime depends on device design, draw, and ambient temperature. Alkaline capacity drops as current draw increases and in cold conditions.

Portable radio (~50 mA)	~60–120 hours
LED flashlight (~300 mA)	~10–15 hours
Motorized toy (intermittent, avg ~500 mA)	~4–8 hours

Compatibility and alternatives

• Device fit: Use only where C, MN1400, LR14 is specified. Do not substitute with AA/AAA unless the device includes adapters approved by the manufacturer.
• For frequent/high-drain use: Consider low self-discharge NiMH C rechargeables (with a smart charger) for lower total cost and steadier voltage under load.
• For long-term storage kits: Primary alkaline C cells are a practical choice thanks to long shelf life.

Use and care tips

1. Install in matching sets; replace all cells in a device at the same time.
2. Do not mix brands, chemistries, or old and new batteries—it can cause leakage or reduced runtime.
3. Remove batteries from devices you won’t use for 30+ days to reduce leak risk.
4. Store in a cool, dry place (59–77 °F / 15–25 °C). Avoid heat, moisture, and direct sun.
5. Keep terminals from contacting metal objects; do not attempt to recharge or disassemble.

Buying guidance

• 2–4 pack: Occasional household use.
• 8+ pack: Multiple devices or emergency kits; rotate stock annually.

FAQ

Is MN1400 the same as C?

Yes. MN1400 (also LR14) is the standard designation for C-size alkaline cells.

Are these rechargeable?

No. Coppertop C are single-use alkaline cells. Use NiMH C batteries if you need rechargeables.

Will alkaline C batteries leak?

They are designed to help resist leaks, but any alkaline battery can leak over time—especially in heat or when depleted. Remove from idle devices and replace sets together to reduce risk.

Do they work in cold weather?

They function below freezing but with reduced capacity. Keep spares warm and expect shorter runtimes in cold environments.

How should I dispose of them?

Follow local guidelines. Many areas allow household disposal; battery recycling drop-offs may be available through community programs or retailers.