Energizer 2CR5, CRP2, CR123a, CR2 & CR coin cells

Energizer Specialty Lithium: CR Coin, CR2, CR123A, CR‑P2 (223), 2CR5

Energizer Specialty Lithium cells provide stable 3V or 6V output, strong pulse current, and long shelf life for devices that demand dependable power—photo gear, tactical and EDC flashlights, security sensors, medical devices, and wearables. Use the exact format your device specifies for best fit and performance.

Which battery do you need?

When to choose lithium vs. alkaline

• Choose Energizer Specialty Lithium if your device is high-drain (flashlights, RF sensors), used in cold weather, or sits in standby but must work instantly.
• Alkaline may be fine for low-drain, room-temperature remotes or clocks that specify AA/AAA (not covered by these formats).

Performance at a glance

• Voltage: 3V per cell (CR coins, CR2, CR123A). Packs (CR‑P2, 2CR5) deliver 6V.
• Chemistry: Primary lithium-manganese dioxide (Li‑MnO2) for stable output under load.
• Temperature tolerance: Broad operating range suitable for sub‑freezing to hot conditions (approximately −4°F to 140°F / −20°C to 60°C; check your device and battery datasheet).
• Shelf life: Commonly rated up to 10 years when stored properly.

Simple runtime examples

• CR123A flashlight: About 45–90 minutes at 500 lumens (single cell, high mode), longer on lower modes. Actual runtime varies by driver efficiency and temperature.
• Security motion sensor (1× CR123A): Often 1–3 years depending on ping interval and temperature.
• Key fob or wearable (CR2032): Typically 6–24 months, depending on use and radio duty cycle.
• Film camera (2CR5 or CR‑P2): Hundreds of shots or multiple rolls, varying with metering and flash usage.

Fitment and compatibility

• Match the exact code: CR2032 ≠ CR2025; CR2 ≠ CR123A; CR‑P2 ≠ 2CR5.
• Do not substitute rechargeable cells unless the device explicitly supports them.
• Avoid mixing brands, ages, or chemistries in the same device.

Safety and handling

• These are non‑rechargeable. Never attempt to recharge primary lithium cells.
• Keep coin cells away from children and pets; ingestion is dangerous. Use child‑resistant packaging and secure battery doors.
• Install with correct polarity. Do not short, crush, or expose to fire.
• Store cool and dry in original packaging. Tape terminals of spent cells before recycling to prevent shorting.

Buying tips

• Confirm the exact format and quantity your device requires before ordering.
• Standardize formats across teams (e.g., CR123A for lights, CR2032 for wearables) to simplify spares.
• Rotate stock: mark purchase month and use first‑in, first‑out (FIFO).

FAQ