A charger left in the wall looks harmless. It sits by the bed, behind a curtain, or on a nightstand and seems finished with its work once the phone is gone. It is not fully off. Many wall adapters keep drawing a small amount of power even with nothing attached. That idle current warms tiny parts inside the block hour after hour. If the charger is old, cheap, cracked, or poorly made, that warmth can build instead of fading. Electricians treat this as ordinary caution, not panic, because small devices left plugged in have started quiet fires that nobody noticed until the smell of smoke arrived.
The danger is highest where heat has nowhere to go.Continues…
