Yes, it is charged all the time on the car by the alternator. Just hook the battery charger up and charge it. Just make sure to connect the cable correctly.
Additional answer
If the battery's flat and you want to charge it without removing it from the car (a common occurrence), just connect it to a charger.
Yes
Some car battery charges will not charge a completely dead battery. You need to find a type of battery charger that is designed to charge a completely dead battery. You can get around this by hooking a car with a working battery up to the dead battery with jumper cables. The alternator/charging system of the car with the good battery will charge the dead battery. Leave them connected for about 30 min, then disconnect and try to use the battery charger again. If it still won't charge, hook it up to the car with the good battery for a longer period of time.
below its desired voltage
To charge a car battery you need aproximatly 8000 amps To charge a car battery you need aproximatly 8000 amps
You can not charge a battery in the microwave.
You can start a car without a battery if you hook up a jump pack or use jumper camples but it could fry your alternator. It is pointless to charge a car without a battery. When you charge the car you are charging the battery.
Just hook up the charger to the battery while it is still in the car and do not unhook it.
NO You have to many AMPS from a car, you can jump start it butdon't charge it.
You may still be able to charge it up.
Yes. That's what car battery chargers are for.
A trickle charger is a car battery charger that is designed to be left on a car for very long periods of time to re-charge that car battery by slowly adding charge to the battery.
You need to add electrolyte and charge the battery. You will then know if it is ok. It may be fine, and it may not be.