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Coin & Button Batteries

Small coin and button cells for watches, key fobs, car remotes, calculators and other compact devices. Stocked here are 3V lithium coin cells including CR2032, CR2025, CR2430, CR2450 and CR1632, alongside 1.5V alkaline button cells such as the LR44 and silver oxide types. Brands include Energizer, Duracell, Panasonic and a JCB mixed alkaline pack covering several sizes in one go.

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Coin and button cells for everyday devices

The little round cells that keep a watch ticking or a car key talking are easy to overlook until they run flat. This range covers the coin and button sizes that power watches, key fobs, car remotes, calculators and other compact gear, so the right replacement is rarely far away. Single packs suit a one-off swap, while multipacks are handy when several devices share the same size, and keeping a spare or two in a drawer saves a trip when one finally gives out.

Lithium coin cells

The flat 3V lithium coin cells are the most common type, used in everything from motherboards to bathroom scales. Familiar sizes here include the CR2032, CR2025, CR2430, CR2450 and CR1632. Each code refers to a set diameter and thickness, so checking the number printed on the old cell is the quickest way to find a match before you order.

Silver oxide button cells

Watches and small precision devices often call for 1.55V silver oxide button cells, prized for their steady output. Sizes in this range include the 357/303, 397/396, 395/399, 394/380 and 393. These tend to be sold in handy multipacks, which makes sense for anyone keeping several watches running.

Alkaline button cells

Alkaline button cells offer a budget-friendly option for lower-drain jobs such as toys, novelty items and some calculators. The LR44, also marked A76, is a frequent choice. A mixed alkaline pack gathers several AG sizes together, covering AG1, AG3, AG4, AG12 and AG13 in one go for the odds and ends around the house.

Finding the right size

Cross-referencing codes can be confusing because the same cell often carries more than one marking. Reading the printed code on the existing battery, or checking the device manual, removes the guesswork. Free UK delivery over £99, worldwide shipping.

Frequently Asked Questions

What devices use coin and button batteries?
They power compact everyday items such as watches, key fobs, car remotes and calculators, along with many other small electronics that need a slim, low-profile cell.

What is the difference between lithium, silver oxide and alkaline button cells?
Lithium coin cells run at 3V and suit a wide spread of devices. Silver oxide button cells run at 1.55V and are favoured for watches and precision gear. Alkaline button cells are a lower-cost choice for lighter-drain items.

How do I know which size I need?
The quickest method is to read the code printed on the old cell, such as CR2032 or LR44, since this maps to a set size. If the cell is unmarked, the device manual usually lists the type.

Why do some cells have two numbers, like 357/303?
Manufacturers and standards bodies sometimes use different codes for the same physical cell, so a battery may carry more than one marking. Either number can be used to identify it.

Are these sold individually or in packs?
Both. Single packs suit a one-off replacement, while multipacks work well when you have several devices using the same size or want spares on hand.

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