I have a Renogy 100w 12v suitcase panel that when I atrach it to my Anker 757 power station I am getting around 85w.
When I attach a 200w 12v Renogy eclipse solar panel I get about 170w.
When i connect them in parallel I am getting about 180 - 190w when I would expect to get 85w + 170w = 255w...