2
aa
accumulator
acid
alkaline
ampere
background
battery
bright
cadmium
capacity
cell
charge
chemical
close
close up
cylinder
dark
electric
electrical
electricity
electrochemical
electrode
electrolyte
electrolytic
electronics
energy
hazardous
isolated
macro
mah
nicd
nimh
portable
power
recharge
rechargeable
recycling
secondary
selective focus
store
supply
technology
terminal
two
volt
voltage
white