my car started acting like it had a dead battery all of a sudden I would go and try to start it it would turn over but just barely and start then it would be fine turn lights on everything worked great then Id turn it off and all the lights when I turned the key to the on pos would be dim.. if I wiggled the key it would go back to being bright well I turned my car off then tried to turn it back on and nothing I have no power to anything I checked all the fuses inside they are all good .. I thought maybe my battery was dead so I jumped it with my other car and still nothing I get the dinging sound then I turn the key and nothing I cant even roll up my windows.. I have no power what do you think went wrong.??? Thanx for yor help

 

Did you check the battery cables to make sure they are tight?