Experimenting with the Chineesium HF Rig today… here is the setup:
20M @ 2.8W out of the tuner SWR=1.17
10M @ 1.4W out of the tuner SWR=1.2 on a not so greatly tuned 20M antenna.
USB to PC running WSJT-X for FT8 ops.
Today was mostly FT8, but I did make a couple SSB phone contacts, farthest was to NC @ 462mi with a 5-6 report.
Contacts going east using less than 3 watts:

Amazing contacts going west using 3 watts!

ZL3TX was in New Zealand, a total of 8302mi (13361km) from point to point!!!
I am also on day 2 running off of the same charge on my 6AH battery - Going QRP is efficient on batteries.