I did some investigation to the Alpicool C20 and it seems to utilize at most 72Ah @ 12V for every 24h, and that is 864 watt-hrs. I’d hope it to use a little lower than that because it won’t be jogging the compressor https://marvinufvg854865.bloguetechno.com/not-known-factual-statements-about-best-portable-power-station-65802284