accumulator
alkaline
art
battery
bright
charge
charger
charging
color
colorful
contour
cylinder
design
electric
electrical
electricity
energy
equipment
flat
fuel
full
generation
glowing
green
icon
illustration
indicator
isolated
level
light
lightning
line
linear
lineart
load
low
metal
neon
outline
power
recharge
sign
supply
symbol
technology
voltage