Coin & Button Batteries

Coin and button batteries power the small devices you count on every day, from watches and key fobs to calculators, laser pointers, digital thermometers, scales, hearing aids, and medical sensors. Compact, lightweight, and leak-resistant, these coin cell batteries deliver consistent power in tight spaces with long shelf life and reliable performance across a wide temperature range.

You’ll find several chemistries, each with clear benefits:
- Lithium (3V, e.g., CR2032, CR2025, CR2016): high energy density, long shelf life (often 8–10 years), great for key fobs, fitness trackers, bike computers, and motherboard CMOS backups.
- Silver oxide (1.55V, e.g., SR44, SR626SW): very stable voltage output, ideal for watches, precision instruments, and compact medical devices.
- Alkaline (1.5V, e.g., LR44): budget-friendly for toys, small lights, and simple gadgets.

Match the exact size and code. For example, a CR2032 is 20 mm in diameter and 3.2 mm thick; swapping to a similar-looking cell may cause poor fit or incorrect voltage. Check your device manual, the old battery’s marking, or a cross-reference chart to confirm compatibility.

Practical tips to get the best results:
- Verify voltage and chemistry requirements (3V lithium vs 1.5/1.55V alkaline/silver oxide).
- Choose reputable brands with fresh date codes for consistent capacity (mAh).
- Handle cells with dry hands or non-metal tweezers; avoid shorting the terminals.
- Replace batteries in matched sets if a device uses multiple cells.
- Store spares in original packaging, cool and dry, away from metal objects.

Safety matters. Coin batteries pose a choking and ingestion hazard. Keep new and spent cells away from children, use child-resistant packaging, and consider bitter-coated options where available. If swallowed, seek immediate medical help. Recycle used cells through battery collection points or local hazardous waste programs—never toss them in regular trash.

Find the right coin and button batteries to keep your watch, remote, key fob, and instruments running smoothly and efficiently.