Started unit on 120 vac while empty to test operation. Went to indicated 2f on coldested setting.
Then filled unit with frozen food from house freezer and powered the iceco with 12volt dc output from a Bluetti ac200max solar generator with 1 extra 230 battery. Test ran 72 hours. Iceco indicated 0f to 2f the entire test period. The Bluetti indicated 36% battery life remaining. There was no solar or ac input during this test.
Conclusion, the Iceco vl 78 quart fridge freezer is ready to head to our Terlingua desert camp that is offgrid and very remote.