Kinda-sorta. Cars pull a lot of current when starting, so the battery has to be able to cope with that. Also, if you get the wrong battery you might not be able to strap it sown properly, or it might not fit, or the cables might not hook up properly.
Not on any modern car with a 12 volt system.
As long as the ATV is wired 12 volt, not 6.
As long as the battery in the lawnmower is a 12 Volt battery you will be fine.
Any 12 volt car battery can go into any modern car. so yes
Most any 12 volt battery will work in your car.
your car is usually has a 12 volt battery, on the charger set it to 12 volt charge, the batter will tell you how long to charge it usually 4 hours, do not overcharge, will damage battery :)
As long as it is a 12 volt battery you can if you set the charger on low.
No, the battery is DC not AC.
14 hours approx
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