There was a problem with the mechanic not hooking up the battery cable on the negative post. He unhooked the battery to solder a wire to the air bag. When he finished the job, The battery cable was not hooked up properly to the post. The connection had come loose. I had to call for help which cost $40 because my car was dead. After the jump, advance auto checked the connections on my battery because it was draining my battery. This is when he tightened the jumper cable to the negative post. The mechanic needs to be more aware of the connections to be tight in the future.