Whether for your wrist watch, pocket calculator, or any other small portable device, search through our huge selection of button battery options. Simply put, a button battery is taller and stockier in appearance shaped as a squat cylinder. These batteries are designed to operate safely at different temperatures, provide maximum energy performance, and perform consistently well. You should be able to tell what kind of coin battery your device needs just by looking at the battery – it has a unique model number. At BatteryDivision, we list each cell by its most common code, but we also have a reference guide of other manufacturer codes on each product page. Button cells will keep your lights lit and your clickers clicking longer, and are widely available at our online shop.