The convenience of leaving devices connected has made it a common practice. These chargers constantly bring energy, but not as much as you want. This can lead to a fire risk or a build-up of heat or a short circuit.

The convenience of leaving the devices connected made it a common practice. These chargers constantly draw energy, but not as much as they would if they were lit. This could lead to a fire risk either by heat accumulation or by short circuit.

The short answer is very likely, even if you will have variable results. For example, let's say you use an old 5V1A charger on a new smartphone. You will have less than stellar results there, because it will charge the device much slower than the charger that came with the phone.

Yes, it is safe to leave your smartphone connected to the charger during the night. For years, the myth persists that connecting your smartphone to charge during sleep damages the phone's battery.

The convenience of leaving the devices connected made it a common practice. These chargers constantly draw energy, but not as much as they would if they were lit. This could lead to a fire risk either by heat accumulation or by short circuit.