Battery discharges overnight
replaced alternator and battery also tested starter. jump start vehicle and runs fine until it
is parked for the night. serpentine belt is good
You have a short or open circuit somewhere. Check your lights and other electrical components on the inside of your vehicle.
boho is right, if you can't locate it by checking all the components or lights inside, then check out the Video by Ericthecarguy.com on parasitic draw test.
I was recently having this problem as well... I ended up buying a new battery and that solved the issue. It was a 2008 truck with the factory battery.
Looking for a Used Ram 1500 in your area?
CarGurus has 11,029 nationwide Ram 1500 listings starting at $1,800.
Search Dodge Ram 1500 Questions
Dodge Ram 1500 Experts
Related Models For Sale
Used Cars For Sale