Latitude 5540 turns off randomly on battery

Hello All,

I have a new Latitude 5540 that is having a strange issue where the laptop turns off randomly while on battery power only.  Dell sent out a tech to replace the board but its still happening.  No dump files, no critical errors in event viewer, no blue screen etc.... Computer just turns off and I have to turn it back on.  Waiting for a battery/cable replacement now but figured I would post here to see if anyone else is having or had the same issue.

Thanks!