3d
aa
accessory
accumulator
adapter
alkaline
background
battery
black
blue
camera
cell
charge
charger
charging
closeup
design
device
electric
electrical
electricity
electronic
energy
environment
equipment
generation
group
isolated
lithium
metal
modern
nimh
object
plastic
plug
power
recharge
rechargeable
recycling
save
science
set
supply
symbol
technology
thunder
voltage
watt
white
world