About CellChart

CellChart is a free cross-reference for button and coin batteries. One page per physical cell, every alias listed, nominal specs from manufacturer datasheets, and plain-English advice on what substitutes safely.

Why it exists

The same battery is sold as LR44 in one shop, AG13 in another and A76 in a third. Search results for these codes are dominated by machine-translated spam and thin affiliate pages. CellChart is the table we wished existed: complete, accurate and fast.

Found an error? Specs are nominal and manufacturers vary slightly, but if a cross-reference is wrong we want to fix it.