It seems harmless to leave a phone charger plugged into the wall when it’s not in use. Many of us do it every day without a second thought. The charger sits there quietly, waiting for the next time our phone battery runs low. But what most people don’t realize is that even without a phone attached, a charger is still active.
When left plugged in, chargers continue to draw a small amount of electricity. Over time, this wasted energy adds up, increasing your power bill little by little. More importantly, unused chargers can slowly heat up, especially if they’re older, damaged, or made with low-quality materials. Heat is one of the main reasons electronics wear out faster — and why some chargers stop working unexpectedly.