Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
Not many cars will start with a dead flat battery and a jump pack.
The battery in the car needs some charge, there's just too much load on the jump pack.
Have you got another battery, or a battery charger?
Is your car manual or auto trans?
Sounds like a starter motor or neutral start switch if auto trans.
Do the headlights stay bright when you try to start?
Do you have another ignition key to try?
Does it do the same thing with either key?
Is your car auto or manual transmission?
Have you got any further information on your problem, regarding my questions above?