If you unplug the battery is for sure is not going to start. What are you asking?
I typically start work at two in the afternoon. Most people start between seven and nine in the morning. Earlier still is is one o'clock in the morning.
Check your battery connections. If they're tight and no corrosion is present, then your battery may be dead. Recharge or jump start the battery. Still clicking? Replace the starter.
starter, solonoid, ignition, battery. if it clicks when you turn the key then the battery is really dead or its the starter the battery could still be jumped if its the battery.
Make sure connections are on tight.
Check your earth (ground) connections battery to chassis & battery to engine / gearbox.
That could be the alternator or the battery. Try jump starting your car with another car's battery. If it still does not start, it is probably the alternator. If it starts, your battery is dead.
Tune up, plugs, wires, fuel filter, truck still will not start outside in 15 degree weather
the battery job is to start the car so the alternator will kick in after the car is running
Sounds like a dead battery. You need the battery to start the car, but once it is running the engine runs completely off of the alternator (which also recharges the battery if the battery is still good).
check your battery then the connections if it still wont start try changing the starter solenoid if possible
mabe the starter solenoid