accumulator
alkaline
art
battery
black
bolt
camera
charge
charger
contour
cylinder
electric
electrical
electricity
empty
energy
equipment
fuel
full
generation
glass
green
high
icon
illustration
indicator
isolated
level
lightning
line
linear
lineart
load
metal
mobile
modern
object
outline
photo
power
recharge
reflection
sign
source
supply
symbol
technology
transparent
voltage
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