Chargers consume power even when not actively charging a device. A test using a genuine Apple phone charger revealed that it uses approximately 130W of power a month, translating to 1.5KW h a year. While this might seem negligible at first glance, the cumulative effect becomes significant when considering multiple chargers.

Fire Hazard: A Real Concern

Leaving a phone charger plugged in poses a potential fire hazard. Overheating chargers, especially when buried under items like clothing or books, can lead to increased temperatures and pose a risk of fire. This danger is amplified when dealing with non-branded, low-quality chargers that may not adhere to safety standards.

Energy expert Glenn LaMay assures that leaving a phone charger plugged in all day doesn’t pose a fire hazard, as all electrical appliances, including chargers, must pass safety tests before being sold to consumer

Wastes Energy: A Silent Contributor

Beyond the financial implications, leaving a phone charger plugged in wastes energy. The seemingly inconspicuous power draw contributes to heating up homes and increasing pollution. With the growing emphasis on environmental sustainability, minimizing unnecessary energy consumption becomes crucial.

While smartphone and tablet chargers have almost no phantom load, power tool battery chargers can be notable energy hogs, especially older ones. Identifying and unplugging inefficient chargers is a practical step towards reducing energy waste.