Added more panels but no increased input.

[CJW]

I have 2 ecoflow Delta pros. I have 2 racks of solar panels 4 × 200 W on each rack wired in series, one rack wired into each 1 of the Delta's. Have been using for about a year, works okay, but not enough input to run an AC in summer. Just added another 2 racks, each with 2 x 400 watt panels wired In parallel. Using branch lines i then connected 1 of the new racks into the main feeds of each 1 of the older racks. At first it seemed to be working well, at 08:30, early morning the input was about 3 times what it was previously, but it topped out at 570 watts into each Delta and won't go higher. It should be between 1200 to 1400 watts, given the angles and the total max output of 1600 watts. Can anyone one please figure out what I am doing wrong? The 8 Rich 200 watt solar panels, wired in series are 20.4 v each, the 4 Hyundai 400 watt panels wired parallel are 37 v each.

 

[sunshine_eggo]

If you can't read the text in the images you post, we can't either. No idea on the specs of the Hyundai panel. Very blurry.

On the rich solar...

Your deltas can't handle more than 150Voc and 15A PV input. If you put the rich panels in parallel, you will be over 15A, and the system will ignore anything over 15A, so you'll at most get about 75% of the rated output.

Also, if the battery is approaching full charge, charge power will taper to what is needed to maintain the battery at the charge voltage.

 

[CJW]

Thank you for the reply. Sorry about the blurred photo, took it after installation and the rack placement made it difficult. Attaching a photo of spec sheet I found online, hope it is better, I can't find the amps on it, but I guess I could wire the Hyundai panels in series, total 148 volts to feed one Delta. Any idea regarding the Rich panels for the second Delta, as they also can't be wired in series as 163.2 exceeds the delta's 150 max voltage? Would a mix of parallel and series wired work?