aa
aaa
accumulator
alkaline
background
battery
black
capacity
cell
charge
closeup
component
conservation
current
disposable
electric
electrical
electricity
electronic
energy
environmental
equipment
fuel
generation
gold
green
industry
isolated
macro
metal
minus
object
orange
plus
polarity
positive
power
recharge
rechargeable
recycling
renewable
reuse
supply
technology
volt
voltage
watt
yellow