Hi guys, I have an old Mitsubishi Mirage that has had a Mitsubishi FTO motor transplanted into it. It keeps going through alternators. Some only seem to last minutes... Some points: 1. This is a car I use on the track so the power draw is low (essentials only, nothing else) 2. The alternators I have used have been 2nd hand units (yes, they are 20+ years old) however I have gone through about 6 of them so far with a total run time of 10 hours I would say on the car 3. The last time I had the car on, it was fine. I let it sit for 2 months and started it again and the alternator is dead (battery was flat too, left connected) 4. The battery I use is a Deka AGM which is underpowered for daily use. Specs of battery: Voltage: 12 CCA: 325 Capacity (Ah): 19 I have been researching what to do/test. The first thing I plan on doing is checking for resistance between the positive and negative terminals of the car to see if there is a short somewhere Check +-ive cabling Check for good ground What else can it be? What else can I check?