Keep an eye on this guy. There are sales every now and then where its like 180$ or close to that.
ROCKPALS 300W Portable Power Station, 280wh (78000mAh) Solar Generator with 110V Pure Sine Wave AC Outlet, USB-C PD Input/Output, QC 3.0, CPAP Backup Lithium Battery for Outdoor Camping Emergency https://www.amazon.com/dp/B08LVTXJRG/ref=cm_sw_r_cp_api_glt_fabc_KKH011J2Q4VSAT96S4WG?_encoding=UTF8&psc=1
Hey sorry for not getting back to you sooner. Here is the exact one I have! https://www.amazon.com/dp/B08LVTXJRG/ref=cm_sw_r_apanp_s6pn2m87EkgMS
With a power station like this (https://www.amazon.com/dp/B08LVTXJRG?maas=maas_adg_06E61E908623A54DD8FBC5F6006FCCDA_afap_abs&ref_=aa_maas&gclid=EAIaIQobChMI5Nmqp6Xp8wIVIRvnCh2W7gLwEAAYAyAAEgKtrPD_BwE) would I calculate it from the 280 Wh or the 300w?