Even without a phone connected, a charger will continue to operate when plugged into a power source. Even when simply plugged in without a load, a charger will still draw current. Leaving a charger plugged in for extended periods will naturally shorten its lifespan. Standby mode not only consumes power but also creates safety hazards such as fire and electric shock. Prolonged plugging in generates heat, accelerating the aging of internal components and easily leading to short circuits or even explosions. When electronic components reach the end of their lifespan, they can easily cause dangerous situations.
Leaving a phone charger plugged in for extended periods is a gamble. If the charger's protection device fails or the battery itself has quality defects, it could cause a fire or even an explosion. No one knows when danger will strike. Therefore, please develop good habits: unplug the charger after charging your phone, and do not charge your phone overnight. If your phone becomes too hot, stop charging it immediately. Also, do not charge your phone next to your pillow to avoid short circuits and spontaneous combustion.
