[blade34609]

Hi,

I have a 1983 Toyota Celica and for some weird reason it wont start anymore.
It all started when i changed the oil in the car.
Then i restarted it and it started up fine.
But when i went back out to restart a while later it wouldnt start!
I then tested it with my charger and it said the battery had a full charge.
But when i try to turn it on, the car attempts to make a sound but i cant get the engine to start. I just head an electronic sound like its making an attempt. Its a clicking sound.

When I tried to jump start it i could see all the current flowing though the dash cause on my volt meter it was way up there.
But when I turn on the ignition its makes that clicking sound but wont start.
I dont know if maybe my battery is discharged.
I have checked for corrosion on battery cables and readjusted the cables for a tight fit.

I hope it has nothing to do wit the ignition coil or system.
I have been jump starting the car a whole lot though. Cause when i work on the car i usually shut it off and on. But then again, i did fully charge it. I hope that all I need to do is buy a new battery.
And also what causes a discharge?

Please anyone help me if u can.

Thanks