Hello All,
I've searched the forum but nothing come up, related to my problem.

My car is a Mazda 626, 2002, 2.0 Diesel TDS.

A week ago I got into the car only to find that my battery was dead. Jump boosted and drove away. My alternator isn't gone as when I came home and left the car overnight it started on the next day. A couple of days later though the battery was dead again, so I went and bought a new one. Same thing happened though - after a few days the battery was flat again.

I do have an amp in the car and have not tested to see if that's not staying ON all the time but I've had it in the car for almost a year now and never had any issues.

Have any of you had this problem before? Thanks guys.

 

This is a late reply, sorry for that.

Give the battery and alternator a "Load test". Google for "load test" or search this site for the term.

Make sure you good ground (earth) connections. You may even want to add some. UseYourNoggin has improved his electrical system.