accumulator
alkaline
art
battery
button
cadmium
capacity
charge
charger
collection
color
design
electric
electrical
electricity
electronics
empty
energy
equipment
flat
fuel
full
generation
green
group
icon
illustration
industry
interface
isolated
level
lightning
load
low
minus
panel
plus
polarity
power
recharge
rechargeable
red
shape
sign
supply
symbol
technology
volts
watts