Chargers are electrical devices, and any device connected to a power source carries some level of risk. Poor-quality chargers, damaged cables, or overheating outlets can become dangerous when left plugged in for long periods. Without a phone attached to absorb and regulate the current, some chargers may overheat, increasing the risk of electrical fires—especially in older homes or when plugged into power strips.
3. Shortens the Charger’s Lifespan
Leaving a charger plugged in continuously causes internal components to stay under constant electrical stress. Over time, this can degrade the circuitry inside the charger, making it less efficient or causing it to fail unexpectedly. That’s often why chargers stop working “for no reason”—they’ve simply been worn down by constant power exposure.
4. Greater Risk of Electrical Surges
Power surges can happen unexpectedly due to storms, faulty wiring, or grid fluctuations. A charger left plugged into an outlet is vulnerable to these surges, which can permanently damage it or even send a shock through connected power strips. Unplugging chargers when not in use adds an extra layer of protection for both your charger and your home.