As long as you didnt leave the lights on or anything like that, it is probably a current draw. In other words, probably a wire that supplies power to something is touching a grounded source and drawing power from the battery. Also possibly have a weak battery or a lot of corrosion on the battery terminals.
no
Certainly, a loose wire on the car battery can cause the car not to start.
the alternator is out
Dead battery? Loose or corroded battery cables? Blown fusable link?
A dead cell in the battery will cause this. Also, any light that is on pulling power from the battery. Another possibility is a stuck relay.
Weak battery and no gas can both cause a no start.Weak battery and no gas can both cause a no start.
No, that will have no effect on the battery.
Sounds like a short on one of the battery cells. Get the local tyre and battery shop to check the battery out
No, a car battery does not have mercury in it. It would be very dangerous to have mercury in a car battery.
A car battery can shock you simply because it has stored energy and power. This is normal, but can be dangerous depending on if the person has built up a static charge.
No
bad battery or loose battery cable