aa
accumulator
alkaline
background
battery
charge
component
current
direct
disposable
eco
ecological
ecology
electric
electrical
electricity
electronic
electronics
energy
environment
environmental
equipment
fuel
garbage
golden
gray
grey
industry
isolated
metallic
minus
nobody
object
one
plus
polarity
positive
power
recharge
rechargeable
recycling
silver
single
supply
technology
white