chris e
Not particularly after a week unless you have an already bad battery or you have something that's "leeching" from it i.e. a component that's constantly sucking voltage.
Anonymous
Capricorn Woman--I assume you are in Australia by your moniker; where it is mid winter? Yes, in this case, it sure can. Or if battery marginal or a small load. If leaving a car over a month, either disconnect batt or put on trickle charger. Or, be ready to jump it when you need start it.
No need to TD. New account, level one. You sure like to repeat questions, too:
/activity/questions?show=x3Im7XLuaa&t=k
?
Depends on the car. Some cars can sit for months without starting and still fire right up while others drain the battery in just a few weeks. If your car is not in running and driving condition, you're probably better off to disconnect the battery or buy a trickle charger that you can plug in to keep the battery fully charged.
thebax2006
The only way a car won't start after only sitting for a month is if you left a light on or the battery is old and needs replacing.
DON W
Yes, it can happen, particularly if the battery is old or the weather is quite cold. You may or may not be able to start the car after a month. If you can't, start by getting a jump. If that starts the car, be sure to run it quite a while to recharge the battery.