alkaline
background
battery
black
capacity
cell
cellular
charge
charger
chemical
connection
cylinder
design
device
display
electric
electrical
electricity
electronic
empty
energy
equipment
fuel
gadget
hand
hold
icon
isolated
level
load
looking
low
metal
mobile
modern
object
phone
portable
power
recharge
red
screen
sign
status
supply
symbol
technology
telephone
touchscreen
voltage