accumulator
acid
art
background
battery
black
charge
charger
chemical
collection
color
concept
device
electric
electrical
electronic
electronics
element
energy
equipment
full
generation
group
icon
image
industry
interface
life
low
metal
minus
modern
object
panel
phone
plus
power
recharge
red
service
set
sign
simple
source
strength
supply
symbol
volt
white