My car died last week, and I bought a brand new battery and ran fine after that. I noticed that the car was slowly lose charge and the battery was not charged more. I just got a new alternator and the battery charged. The car will run for about 10-15 before it unable. If the battery charger will work until it is quite good, as long as addicted as I want. I have tried two batteries, both in good condition. I’m just thinking somewhere in the wiring? Securing the alternator is good, and the contributions to good contact. Any ideas?