One of the standout features of the DLYFULL Battery Tester is its high level of compatibility. The tester can be used with a wide range of cylindrical and button cell batteries, including AA ...

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.

Button and coin cell batteries are tiny but powerful: You can find them in everything from tealights to toys. And in the hands of young children, they’re uniquely dangerous. Aside from ...