Medical Device Coin Cell Guide
Medical and wellness devices often specify CR2450 or CR2032 for multi-month runtime. Always follow the device IFU — this site does not authorize substitutions for life-support or critical-care equipment.
Selection notes
- Prefer name-brand cells with documented shelf life for clinical inventory.
- Match chemistry (CR vs BR) when the datasheet calls for temperature extremes.
- Do not use rechargeable coin cells unless the device is designed for them.
Related charts
CR2450 cells deliver high capacity in a 24.5 × 5.0 mm, 3V lithium package (~550–620 mAh) — ideal for devices that must run months on a single coin cell. Do not confuse with the smaller CR2032 or the thinner CR2430.
DL2450 is Duracell's branded equivalent to the standard CR2450 lithium coin cell.
BR2450 shares CR2450 dimensions but uses lithium carbon monofluoride chemistry for extreme temperature stability.
A CR2032 is a 3V lithium manganese-dioxide coin cell, 20.0 × 3.2 mm, typically 220–240 mAh (about 0.66–0.72 Wh). Fresh cells often measure 3.2–3.4 V. DL2032 and ECR2032 are brand labels for the same size. CR2025 and CR2016 share the 20 mm diameter but are thinner and not drop-in replacements. Do not use rechargeable LIR2032 (~3.6–3.7 V) unless the device is designed for it.
CR2430 is a 24.5 × 3.0 mm lithium coin cell — thicker than CR2032 but thinner than CR2450.
CR2354 is a high-capacity 23 × 5.4 mm lithium coin cell — often searched alongside CR2450 but not the same diameter.
Frequently Asked Questions
Can I swap CR2450 for CR2354 in a medical sensor?
Only if the holder and IFU allow it. CR2354 is 23 × 5.4 mm; CR2450 is 24.5 × 5.0 mm — diameter and height both differ.
Review record and primary sources
Reviewed by PlainBattery Technical Review Desk on 2026-08-25. Checked: device-selection guidance, linked battery dimensions, voltage, and chemistry, compatibility and safety limits.
- Button Cell and Coin Battery Information Center — U.S. Consumer Product Safety Commission. Ingestion hazard, secure battery compartments, handling of loose and spent coin cells, and emergency guidance.
- Lithium Technical Handbook: CR Coin-Type Batteries — Panasonic Energy, 2020 handbook (2020). CR/BR dimensions, nominal voltage, capacity, discharge and temperature characteristics.
- Energizer CR2032 Product Datasheet — Energizer Brands, CR2032EU0118 (2018). CR2032 dimensions, capacity test conditions, voltage, pulse discharge and safety.
Revision record: source citations and field-level review scope added September 11, 2026. See our sources and methodology and corrections policy.
To identify a printed code, use the Battery Finder or the cross-reference charts.