At least I think it is, I'm having trouble starting my 1998 ranger

if the truck is jumped, or is able to start, for a period after it is started it will run fine, and start again just fine...but after 6+ hours it will not start. Jumping the vehicle seems to work, and then my voltage on the battery gauge goes from low, to normal levels (although a tad below the middle of the gauge).

Actually, I'm going to update this one, There seems to be no voltage drain at all, it just seems to take a while to get the car started. slamming the door seems to be connected with it starting to work. loose starter cable somewhere??