It could be a dead battery.
solenoid or relay switch
It could be, a dead battery, loose or dirty battery connections, a faulty starter,
If you are talking about a car engine and battery then it is not the battery that is clicking. It is in all probability the solenoid.
Your battery is not giving enough power to start the car. It may be battery, alternator, voltage regulator or bad cables.
you need a new batt.
jump start the car and get a new battery and if it isn't the battery it could be the alternator or both, but try a new battery first
i need help with my car
Bad battery, starting motor or both.
ITs your Starter
your battery is either lose or dead check that
A car that makes a clicking noise when you are trying to start usually has a bad alternator. If the car clicks just one time when you try to start it, it could be the starter.
battery or corroded connection on battery One click most likely is a bad starter motor or solenoid. Many clicks battery or connection problem.
i might be wrong but it could be the 'bendex'. this is the part of the starter motor that disengages it after the engine turns on. it might not be fully disengaged from the previous trip. sometimes all that is needed to get it to go is to rock the car foreward or back a little. hope that helps.
Jump start car and ensure battery and alternator are good.
dead battery possibly. just a guess, you didn't give much detail.
It clicks?What are you talking about clicking? you turn the key to start the car and all it will do is click,click! or when you try to start it it will spin over and then stop and click.! All I can think of if your car battery isn't good enough to start the car and you will get a click or you have a bad starter and it will only click. need more info
Your battery might be dead. Or you may have a faulty starter relay switch
Weak battery, bad connection Bad starter
One of a few things depending on the click. If it makes consecutive clicks when you turn the key (click,click,click,click) then the odds are the battery is dead or in need of charging and there just isn't enough charge to fully engage the starter and turn over the engine. If it clicks just once, the selenoid is usually bad, or the starter is "locked" and will need to be replaced.
WHAT DOES THE CAR DO WHEN YOU TRY TO START IT? NOTHING? JUST CRANKS? CLICKS,FAST/SINGLE?
You need a new battery.
It will probably be your starter motor Starter is out!
Obviously if it will not start, there IS something wrong with it.
Sounds like the starter
It is likely to be the starter is not working.