WattHaul Reviews started after one too many camping trips ruined by a power station that died hours before its rated runtime suggested. Marketing numbers and real-world numbers rarely match.
So we test. We measure usable capacity under steady load, check whether the inverter can actually surge to start a fridge or power tool, and time full recharges from wall and solar. We weigh the units, because portable should mean portable.
Affiliate links fund the gear and the testing. They never decide the rankings; the bench does that.