Area-51m, 3D Mark Scores RTX 2080 MAX Q without AC Adapter needed

I got an Alienware 51m with RTX 2070.  The score when the AC Adapter is plugged in is phenomenal -- but when unplugged, I got a score of 2602 : https://www.3dmark.com/spy/7191985

Another poster on Reddit with RTX 1080 Max-Q design posted his score without AC Adapter, and they get 4652: https://www.3dmark.com/3dm/36136281?

I would love to see RTX 2080 MAX-Q's 3D Mark benchmark of TimeSpy without AC Adaptor to see how it performs on battery.  If anyone can help out, thanks in advance.