Bluetti elite 300 pretty much new used a couple times to power portable fridge on camp trips.

Frost & Sullivan® Certified —The World's Smallest 3 kWh Portable Power Station
3 kWh Power, 2 kWh Size: 1 kWh more capacity, yet still as compact as a 2 kWh unit — easy to carry and use.
RV Ready : Plug in your RV with the TT-30 outlet or run lights and appliances through the 12 V/30 A DC port.
High Power & Fast Backup: 2,400 W output (4,800 W lifting) for heavy loads like microwaves and heaters. 10 ms UPS keeps security systems, aquariums, and workstations running.
BLUETTI App Control: Monitor energy, remotely wake the unit, and schedule device auto
$1000