abundance
accu
accumulate
alkaline
amps
batteries
battery
black
blue
bunch
capacity
cell
cells
cellular
closeup
collection
consumption
current
direct current
ecology
electricity
electronic
energize
energy
environment
generation
low key
macro
metal
negative
nobody
polarity
poles
positive
power
powerful
recharge
rechargeable
recycling
round
store
toned
vertical
volt
voltage
watt
work