Signs of Maintenance free battery turns bad
One morning, I turn the ignition on and the engine crank very weak but it can manage to start the engine. So I think my battery get discharged for some reason so I drive the car to work, its one hour drive and enough to recharge my battery to full. However, after work, on the parking I turn the ignition on and like this morning the engine crank more weak but can manage to start my engine. Driving home, put my headlight on high beam and I found something not normal. It goes dim when I open the power window and goes to normal after the operation. Also both air condition system and the radio is operational, but with no valid reason, my radio goes off. It comes quick to my mind that I have some parasitic draw who use some battery amps when engine is off, so I did check all accessories, fuses and light one by one using a tester, I even take out my doom light suspecting this would be the cause. After all the electrical check up, I found nothing. I am now turning and suspecting a bad alternat