A cell phone battery sits in a charger plugged into a wall socket

A cell phone battery sits in a charger plugged into a wall socket. The socket has two white switches labeled "ON" above each. Two red indicator lights are illuminated below the switches. To the right of the battery charger is a white USB wall charger. The wall and socket appear dirty and worn. A small picture of a house is attached to the upper left of the socket. The battery itself has a black label with warnings and symbols printed on it.