Thank you for the answers.  I swapped the battery that I purchased for the original battery and now everything works?  Go figure. The only change is the interconnector board between the battery and the system board.  The system boots normally.  No more issues.  
My issue is that my XPS resets the time on every reboot.  I have to enter the BIOS and fix the date and then boot.  There are multiple other issues. This all happened after I replaced the keyboard since two keys on the keyboard broke and the touchpad was not working properly.  I was able to replace both part.  However, thereafter my battery was no longer charging.  As such, I first ordered a non-Dell battery that was not recognized by the system and did not charge.  Then I bought a OEM dell battery and a new interconnector board to connect the battery to the board as that part seemed to have issues as well.  I was delighted when the battery was recognized again and is charging. All appeared well.... But then I realized I had this issue: 1. The laptop will not turn on when pressing the power button.  It will turn on when I connect AC power (even for just a moment).  I assume it starts because the wake-on AC is enabled in the BIOS.  The fingerprint scanner works and the power button will put the laptop to sleep. 2. I have to enter BIOS on each boot to set the date and time.  It appears that this laptop does not have a CMOS battery, so that is not the issue. I have updated all the drivers and updated to the latest BIOS (whatever is the newest as of 2.16.22).  Any diagnostics reveals no issues.  The battery charges fine and everything is properly detected in BIOS (show battery charging and presence of AC adapter). The date/time resets occurs irrespective of a full battery charge. I am not sure what the issue is?  A short? Is there anything on the board that maintains some charge for the CMOS? Can it be some of the screws shorting out that I used to connect the system board, etc. to the chassis?  I am truly perplexed. I am pretty computer-literate but I need help. Thank you.
Dell XPS 13 7390 2-in-1 - time resets each reboot