It is a single alternator and when the battery light is on im reading 14.35 at the alternator and 13.36 at the batteries. Thanks for the input on p0528, my fan is spinning slowly.
Do we actually have a issue with batteries going dead still or have we been replacing all of these parts chasing the battery light issue?
I had purchased new batteries about a year ago. about 8 months later the battery light came on and off. This lasted about a month then the battery light stopped coming on. Then about a month ago my batteries were completely dead. I replaced them under warranty. All this time my battery light has not been on. Then three days ago I got stranded and called a tow truck. The alternator tested bad. I replaced the alternator and the light started up again. I then replaced the belt and belt tensioner I starting to think that maybe its this new alternator. But test shows charging good. ****diode??? I just tested the charging again and its said charging but low charging.
NOTE: 6.0L Diesel generator shown, all others similar.
Well if both batteries are disconnected and then you connect either battery you could get a spark from the modules powering up. I wouldnt think that it would have caused this issue. Basically if we had an excessive draw on the electrical system it would drain the batteries overnight. Im sure we are ok but if we do get a battery drain overnight then send me a pm or start another question and we will tackle that issue. Thanks again and im glad I could help.