abstract

accumulator

alkaline

amperage

battery

charger

charging

closeup

component

computer

concepts

cylinder

device

display

disposable

electrical

electronic

energy

equipment

fuel

full

generated

generation

group

icon

illustrative

industry

lapse

letter

lies

number

objects

order

panel

polarity

power

selective

sign

stack

supply

symbol

speed

technology

time

volt

special

long

mode

current

discharge