Duh, I didn't think to try an external chargerresponded to a good bench charge
When I went from the Colorado to the Jeep the 7 pin charge wire for it was on the reverse lead which I found when the battery went flat and wouldn't respond when I ran the onboard charger so threw it on the bench job and that got it going, now it is charged full time from van.Duh, I didn't think to try an external charger