Test conditions: 3ea 115AH flooded batteries, 2ea 135W Kyocera PV panels, Rogue 3024 Charge Controller, Trimetric 2020, Temperature range, 34-55F. All other chargers and known loads were off. Batteries were pulled down to 45% Trimetric by simulating night time camping. Panels are nearly flat mounted, RV.
Refering to my post http://www.wind-sun.com/ForumVB/showthread.php?t=8187 about only getting 1/2 PV output to my batteries, I think the Rogue partially solved this but I have discovered that I am loosing some of my charge current to the RV frame ground. On the drawing in that post, all the negatives tie to the shunt, there is also a short #2 jumper from this point to frame ground. When I lift this frame ground, the trimetric agrees with the Rogue. When it is lifted, I tried to measure the amperage with my Fluke 87 and saw nill which is puzzling. When it is landed, I measured it with a Craftsman Clamp on amp probe and at peak sun it measures about 4 amps. The difference can clearly be seen in the spreadsheet.
I had to give up my efforts to return to work for a month and will continue when I return. I think next, I will lift all user grounds on the other frame ground. Then measure again. If it goes away, I'll reland them till I find it. 4 amps should be easy to find.
Overall I am very happy with the Rogue 3024 and would highly recommend it for small systems and RV's. The features for the price is unbeatable!