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Coin & Button Cell Batteries

Coin and button cells are the small, flat batteries behind watches, car key fobs, bathroom scales, calculators and computer motherboards. Our range gathers the common lithium types such as CR2032 and CR2025 alongside alkaline and silver oxide button cells like LR44, so you can match the exact code printed on the cell you are replacing.

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Finding the right coin cell

Every coin and button cell carries a code that identifies it exactly, so the safest way to reorder is to read the number printed on the old battery. Lithium coin cells such as CR2032, CR2025 and CR2016 power car keys, fitness trackers and computer clocks. Alkaline and silver oxide button cells such as LR44 and the equivalent watch sizes suit small toys, calculators and timepieces.

Lithium, alkaline and silver oxide

Lithium coin cells hold a steady voltage and a very long shelf life, which is why they dominate key fobs and backup memory. Silver oxide button cells give a stable output prized in watches and precision instruments. Alkaline button cells are the budget choice for low-drain toys and gadgets. Checking the code avoids a near-match that will not fit or perform.

Frequently Asked Questions

How do I know which coin cell I need?
Read the code printed on the flat side of the old cell, such as CR2032 or LR44, and match it exactly. The letters and numbers describe the chemistry and the physical size, so a close number is not a safe substitute.

Are CR2032 and CR2025 interchangeable?
They share the same diameter but the CR2025 is thinner with less capacity. Many devices accept either, though a snug fit and full runtime come from using the exact code the device specifies.

What is a watch battery?
Watch batteries are small button cells, most often silver oxide, chosen for their stable voltage and long life. The correct size is printed on the old cell or listed in the watch documentation.

Do coin cells expire?
Lithium coin cells keep most of their charge for up to a decade unused, while alkaline button cells have a shorter shelf life. Storing them cool and dry helps them last.

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