aa
accumulator
alkaline
ampere
battery
bulk
bundle
cadmium
cell
charge
connected
discharging
eco
ecology
electric
electrochemistry
empty
energy
energy concept
environment
exhausted
hydride
isolated
lithium
many
metal
minus
nicd
nickel
nimh
plus
pollution
power
rechargeable
recycle
recycled
solder
soldered
together
used
utilized
variety
volt