battery

black

charge

charger

charging

chemical

color

complete

computer

concepts

copy

cylinder

dead

design

device

digital

discharged

discharging

divisions

down

dying

electric

electrical

electricity

element

empty

energy

equipment

error

flashing

freshness

fuel

full

future

futuristic

generation

glossy

green

icon

indicator

isolated

low

power

recharge

reflection

screen

sign

space

symbol