car battery died, help?

No, they will not be able to tell how long the car was actually running without being on (except they will know it was a while because unless a battery is pretty old it can normally hold a charge for a good while).

If you don't want anyone to know, just have somebody jump-start the battery for you (with jumper cables) and BE SURE to set your car clock to the correct time so no one will be able to tell that it went to 12:00 which usually happens when the battery dies.

The radio is ok if it isn't going to be for a ridiculously long time but the AC will always drain the battery if the engine is off so you should never do that, not even for 5 minutes.

that would all be a vareableof factoures one being the age of the battier two being the condistion of charge of the battier three being is your alt working and is the belt broken on the alt so it wont work right thare are just two many factores truely to be able to deturman this to the exact minute but if all of this takeing into consederastion being that the alt is new the car is new the battier is new and your not drawing 1000 amp for your radiow and spekers then i would say you wear in your car for about 5 hurs with the ac and the radiow runing with the car shut off

you can sit and listen to the radio for a pretty long time while the car is off and the lights and other stuff is off. the A/C is what killed it so fast. it has to run a fan to propel the air into the cabin so it draws more power.

No, but if you want your battery back you will have to put it on a mains charger and that is going to take several hours.

allways turn key to acessery positon to listen to raido an onley use a,c, when car is running. if not you know what happens know.