adapter
bar
bill
business
cable
charge
charger
connect
connection
cord
current
danger
desk
desktop
device
earth
economy
efficiency
electric
electrical
electricity
energy
equipment
expensive
extension
hand
home
hour
increase
laptop
many
multiple
notebook
office
overload
person
plow
portable
power
safety
screen
smart
socket
strip
supply
surge
technology
usage
white