I did some investigate over the Alpicool C20 and it seems to implement at most 72Ah @ 12V per 24h, which is 864 watt-hours. I’d hope it to work with somewhat less than that since it won’t be working the compressor https://mollyytjt902126.eedblog.com/30490289/best-portable-power-station-no-further-a-mystery