I have a 2015 ram 2500 diesel
My truck will not start after sitting for a short length
of time. Some times 2 hrs. I bought new batteries
and still had the issue. I had the alternator tested
and was told it was good, and still have the issue.
The dash shows low voltage and the battery
symbol pops up. What else should i check?
Only time battery light comes on if alternator is not charging. If you had it tested off of truck id say your problem is in one of the small wires. Check for broken wire or bad connection.