got 2 new T4 charge bases from RTI on an advance return and it resolved the issue

Brett had told me both the T4 and the charge base had to go back to RTI for modification but the new charge base resolved the issue

the new charge base has the same P/N 20-210035-13 but looking at the 4 contacts they are different: they are solid with a nickel coat as opposed to the original contacts which were copper finish and each contact had two prongs

also in the box for some reason was a Docking Station board, the part that was revised: it is marked REV D2: the board has the 4 contacts and the 12 volt receptacle and looks pretty easy to change out. Note there is a fuse F1 on the board

finally the T4's sit on the base and stay on: have not seen any rebooting issues either

RTI also replaced a new T4 battery that was defective