My battery would not maintain a charge due to the alternator not working. I replaced both and everything worked fine for about a month. Now my battery dies after only two days of sitting. Charged it up, and it took the charge but was dead several days later!!! What tests do I need to run? Is it a short somewhere?

 

If the battery is new and is charged then get a volt meter and measure the current being drawn when everything is off. Anything over 50mA is considered parasitic from what I am told. Make sure your doors are closed to keep the interior lights off. If its over 50mA then pull fuses until it drops.