accumulator
background
backup
battery
blackout
charge
charger
charging
chest
compact
contemporary
device
drawers
electric
electricity
electronic
emergency
energy
floor
furniture
generator
indoors
interior
mobile
mobility
modern
nobody
object
outage
phone
plug
plugged
portable
power
recharge
room
shortage
small
smartphone
solar
source
station
supply
technology
uninterruptible
ups
usb
volt
voltage
watt