Many people keep their phone chargers plugged in even when they’re not being used, without realizing the hidden risks. For one, this simple habit drains what’s known as “vampire energy” small amounts of electricity that add up over time. Not only can this increase your energy bill, but it also places unnecessary strain on the power grid.

But the bigger danger is fire. Chargers, especially cheap or worn-out ones, can overheat if left plugged in, creating a real risk of electrical fires. Even if it doesn’t lead to flames, the constant flow of power causes both chargers and outlets to wear out much faster.

There’s also an environmental cost. Wasted energy means more carbon emissions, contributing to climate change all for devices that aren’t even charging. Experts recommend a few simple steps to stay safe and save energy: Always unplug chargers when they’re not in use.

Use high-quality chargers and replace any that are frayed or damaged. Try power strips with switches or smart plugs to easily cut power to multiple devices. This small change protects your home, lowers your bills, and helps the planet proving that sometimes, the simplest habits make the biggest difference.