Why you should not leave your charger plugged in to a power outlet.
apart from the fact that leaving your battery unnecessarily plugged into the power outlet runs down your battery life, Don't plug your laptop or phone when rain is falling especially when it
is accompanied with thunderstorm because you might loose your charger or
plus your laptop or phone, if by any change a thunder strikes your
power grid or pole especially those supplying your mains or house, an
overwhelm surge of voltage will flow through every outlet in your house
and cause damage to your appliances. This can cause damage whether you
have power supply to your house or not because the thunder itself in a
Voltage on a loose. So, please watch out or turn off your socket.