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@mikefitz , If may chime in. I've been informed that placing panels in series/parallel, although one panel may have shade you still get some output from the others, correct? I have four and a tree crown issue which will cost $$$$ to have them trimmed for the winter months. YUK!

Sorry for that, still learning. Partial shade, then in full sun it remained the same. I will follw your recomendation and follow up, thanks. If I may: what is a

Will do. I'll unplug the ecoflow delta 2 and check all mc4 connections including each panel. Appriciate your feed back.

Trial and error. I have to move the panels for the winter due to the sun going further south in sky. I could have the tree crowns cut back but that costs $$$$$. I did get the heavier guage wire though. Thanks.

Thanks for the input. All wires and MC4's are solar-rated. On the ground, yes however no recent rain after moving panels. I did make one end myself. I switched out the 12 AWG extension cable for an 8 AWG and tested each panel (20.5-22.4 voc). I will be attaching panels as per the above diagram...

After reading my current panel date sheets I see that I can go to 500 watts max on the EFD2. My current wired: first two in series, second two in parallel. When I get the two additional panels that will put me at 600 watts, 6 panels @100 watts. I'll wire those in parallel adding to my cables...

I also started small (window panels) and now in a position to go a bit bigger. Researched YT videos and will do a treated 2x4 3-panel rack to provide power for a medical device (CPAP) for 7-8 hrs, two adjustable beds, two tower fans and a full size refridge/freezer (alternating every hour) when...

Project Sunroof hasn't reached that address yet message. Search for other measuring sites.

How would a backup for the sump pump work on solar? Would a battery, solar panel and inverter and charge controller work and is it that simple? Also what wattage inverter and controller would I need for this? Current pump plugged into a dedicate outlet with it's own trip breaker. Thanks.

I currently have 4/100 watt Renogy panels using the ecoflow D2 in series/parallel-running 24/7-} a full size fridge and a small freezer. I was getting approx 310 watts input with the unit @20 ft with a 10awg xt60i cable and a 20 ft 12awg extension with mc4's. The volts drop where 1.69%. I've...

Will it have to stay as a 12v system or just change to a 24v inverter?

Thanks for replying. Yea, the window was just for a small 3"x3" panel just for the cell phone. Which works when its recharged either by the sun or plugged in. The house area is 1500 sq. ft. and faces west... The window faces south and gets sun most of the day. I did notice that our roof area...

No luck. The unit still does not provide sufficient solar input watts. Each panel was tested and displayed between 20.5 and 22. 4 VOC for a total of approximately 86 VOC. The panels are rated for 24 VOC each. The panels are connected in series-parallel (2S2P) with a 15 amp fuse producing 43.79...

I'm a newbie to solar and been researching. I finally hooked up and ran a full-size Samsung fridge on the Ecoflow Delta 2 with the extra battery attached to four, 100-watt panels in series/parallel. Panels get 6 hours of direct sun then shade (trees). Thinking of adding panels to another area...

Can you provide a diagram - 2S2P or 2P2S so I don't mess this up? The additional items needed arrived and will begin testing each panel and wiring today. Thank you all.

Just beginning and have a simple window cell phone solar charger. After watching the videos, would like to begin with attaching a system for laptop, household fans, a lamp, or two. A medical device and electrical beds and go from there. Then the fridge...

I so much appriciate this explination.

I bought it and the information is awesome. I'm just getting stuck on the amps power which you explained very well. So to my project, in your oppion is the equipment I currently have, increase the guage wiring and fuses and getting an additional battery for the setup should work?

Thank you all for the susggestions.

Thanks. When you mentioned double the amperage is that to include more solar panels?

Thank you @sunshine_eggo and @efficientPV. Yes, two in series then those into parallel. By me adding another two panels in S+P to sunny areas, how do I connect them to my current wiring configuation from current panels to the battery? Will I be using a parallel split Y cord?

Correction and Update: Sorry for the delay as I have mobility issues. When I first posted I had mentioned an xt60i cable attached to the Ecoflow Delta 2 (EFD2), it was an xt60. I tested all MC4 connectors, as one poster suggested, @Checkthisout, THANKS. Also tested each panel for Ecoflow...

Gotya, thanks.

Thanks for this idea. It states it can handle up to 60 volts. Now looking for a good series diagram.

Panels are stationary as this is my first winter for the panel movement location. I chose area with full sun, 3-4 hrs. The summer panel location gives me 4-5 hours of full sun. I'll only be moving them twice a year. Tree crown cutting may be in my future though. Appriciate the feed back.

Will do. Thanks.

I do and can crimp. Can you please assist with a diagram to make

I let the batteries go down to 18% so I could test the panels. Same result. They run the fridge and small freezer for almost two days on a full charge. Thanks.