Read the marking
Enter every visible letter and number from the old cell.
Source-backed battery matching
The code on the battery is enough.
Type any button or coin-cell marking. Get the matching family, chemistry, voltage and exact dimensions before you buy.
Popular
25cell families
140+searchable markings
3manufacturer sources
Match result
Enter the code printed on the battery
Why this is safer than a static chart
Fit is only one part of a correct match.
Cells that look identical can use different chemistry or drain profiles. CellMatch keeps those differences visible instead of hiding them inside a giant table.
Compare the chemistry
See whether the label means lithium, alkaline or silver oxide.
Confirm the dimensions
Match voltage, diameter and height with the manual or holder.
Prototype coverage
Browse all 25 cell families.
Evidence, not guesswork
Every prototype match starts with manufacturer guidance.
This is a validation prototype, not a substitute for the device manual. Always use the size and chemistry specified by the manufacturer. Keep coin cells away from children and never recharge a cell unless it is explicitly marked rechargeable.