Button batteries come in different sizes, and tragically, hospitals are seeing more and more young children rushed into the Emergency Room after accidentally swallowing one of them.

Button batteries come in a range of sizes—some are smaller than a Cheerio. Photo: Scott Meadows/Consumer Reports These batteries are powerful and compact.

Button batteries come in different sizes, and tragically, hospitals are seeing more and more young children rushed into the Emergency Room after accidentally swallowing one of them.

Look around your house and chances are you'll find you've got toys and other household items powered by those tiny button-size batteries.

Despite their small size, these batteries can be powerful and potentially deadly if swallowed, especially by young children.

Button batteries are roughly the size of nickels and quarters. They're found in all types of household items, including: TV remotes, key fobs, watches, cameras, calculators, gaming headsets, and more.

Look around your house, chances are you've got toys and other household items powered by those tiny button-size batteries.

Look around your house, and chances are you've got toys and other household items powered by those tiny button-size batteries. What you may not know is that they’re potentially deadly if ...

Chances are you have a bunch of gizmos at home that contain button batteries, those sleek coin-size power sources that pack an electronic punch. Batteries like these can keep your TV remote or a ...

Look around your house. Chances are you've got toys and other household items powered by those tiny button-size batteries. What you may not know is that they’re potentially deadly if swallowed ...

To understand why batteries come in many different sizes and shapes – and serve many purposes – look to the past, at how batteries originated and how they have developed over the years.

To understand why batteries come in many different sizes and shapes – and serve many purposes – look to the past, at how batteries originated and how they have developed over the years.