Okay so basically my car battery is drained to the point where I can't turn on my hazard/ emergency lights on... I took my battery to auto zone to get recharged and tested but the guy said the battery looked to be good... So I put it back on my car and in a couple of hours I noticed as I would brake my headlights would dim and the screen on my stereo would go back in . My car died completely. I couldn't use my hazard lights because I complete had no power . I had my alternator replaced not that long ago. Also I had my stereo changed not that long ago ... Any advice or tips .. Thank you