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Not on any modern car with a 12 volt system.
No, the battery is DC not AC.
If you are interested in getting a 12 volt battery for your car you should go to your local car workshop in your nearest City. They can help you getting a new battery.
No, not unless you installed a 6 volt battery instead of a 12 volt battery.
12 volt
No, the battery charger has to match the voltage of the battery it is to charge.
One is 9 volts and the other is 12 volts. They do not interchange!
It is a 12 volt battery. Fully charged it will read 12.6 volts with a digital volt meter.
The charger needs to be set to charge for the voltage that the battery is designed to produce. Most car batteries are 12 volt batteries.
It will be a 12 volt battery.
No, a lead acid battery is a wet cell battery and a 9 volt alkaline battery is a dry cell battery.
Unless it's an old vw bug, cars usually run on a 12 volt dc system nowadays. Motorcycles often run on a 6 volt dc system. Different systems require different charging voltages so you won't ever be able to charge a 12 volt car battery from a 6 volt motorcycle battery charger as the output voltage would be way too low. However, if you can set the battery charger's output to give either a 6 or a 12 volt output, then you must always remember to set it to 12 volts if you want to use it to charge a 12 volt car battery.