Top 10 best-selling Watch Batteries

Varta provides batteries in all shapes and sizes. This CR2032 is a button cell battery with a voltage of 3 V and a capacity of 230 mAh. This battery can be used in many (small) devices.

The VARTA CR1620 3V lithium button-cell battery has a 70mAh capacity and can power a variety of gadgets, from remote car keys and watches to clip-on tuners for guitars.

Looking for a CR2430? Or a DL2430, BR2430, 5011LC or L20? By those names, this button cell battery from Varta is also known. Its capacity is 280 mAh and its usability is very broad.

From tuners and light-up drumsticks to watches and calculators, there's a lot of gear that won't run unless you pop in a button cell battery. Here, GP offer up a 20-pack of 3V lithium button cell batteries with a capacity of 220mAh.

The VARTA CR2016 3V button cell battery has a 90mAh capacity, setting it up to power everything from your clip-on tuner and car key to photographic equipment.

The Duracell CR2016 is a very compact lithium button cell battery with a 90mAh capacity that provides long-lasting power to remote controls, watches and all kinds of other electronics.

Used to power anything from clip-on tuners to wristwatches, this ten-pack of GP CR2032 button cell batteries are affordable and long-lasting.

This pack of D'Addario PW-CR2032-04 Lithium Batteries bundles up four type-CR2032 3 Volt button cell batteries.

Build for a gazillion different uses, the lithium-based Energizer CR1632 button cell battery delivers an extremely stable and consistent current at no-less-than 130mAh.

Designed to last as long as possible, GP CR2025 Lithium button cell batteries can be used to power everything from your calculator to your watch or clip-on tuner. Kept dry and cool, these batteries can keep going for up to ten years.