Check the end of your Ryobi 4V battery — if it has a button, then all you need to do is press it. The LED that is integrated into the battery will then either light up red, orange, or green.

Never leave batteries sitting out Store spare batteries out of reach and sight of young children Check household items to make sure battery compartments are sealed shut.

Button and coin cell batteries are tiny and powerful, but uniquely dangerous. Consumer Reports gives tips to keep your children safe from these energy sources.

Children can suffer serious or deadly injuries after swallowing button batteries, which power a wide range of household items. Physicians say serious injury can happen within two hours, sometimes ...

If you're using an Amazon Fire TV Stick as your TV interface, and you're wondering what your remote battery level is, there are a few ways to check. Here's how.