Chargers have become a constant presence in modern households, powering everything from phones and tablets to headphones and laptops. Because they are used so often, many people leave them plugged in even after a device is fully charged or disconnected. While this habit feels convenient, it can have small but meaningful effects on energy use, safety, and the lifespan of the charger itself.
One concern is unnecessary electricity consumption. Chargers can continue to draw a small amount of power even when no device is attached, a behavior commonly known as standby power use. On its own, the amount is minimal, but when several chargers remain plugged in around the home day after day, the combined energy waste can slowly add up. Over time, this can slightly increase electricity bills and contribute to higher overall energy demand.