No, your battery supplies power to the starter. However if your alternator is defective then it will not supply power to the battery and the battery will soon be depleted.
no if the car doesnt start check the battery and the alternator and the starter.
Car would either have to be running or alternator removed for bench test
alternator?
Alternator
the battery job is to start the car so the alternator will kick in after the car is running
If your car doesnt start, it could be the battery. But if the car starts and you unplug the negative cable and the car turns off, its the alternator.
the batteries only serve to start the car and the alternator. I'm not sure if it would be your alternator but it's not the battery.
As long as the battery is charged
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.
You can test it your self. Start the car might be pain in butt if alternator is really dead if so let car sit for a little while and charge it self up. Also you can knock on alternator with a happer bunch of dust will fall out and it will get you enough time to drive for few day to go get new alternator and install it without car breaking down. Anyways start the car, then disconnect the negative wire on the car if it dies the alternator is dead if not then alternator is good.
It will start if there is enough charge in the battery to turn the engine over. However if the alternator is weak then the battery will not be charged fully.
you need to check your alternator