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I have 12 Suntan 250 watt used panels Two 50 amp Battleborn batteries Growatt info attached All off grid Is this enough information about my system?

I am back from the past . Less one two hundred year old silver maple so my panels are getting more direct sun. Even as we head to the winter solstice in less than a month can you guy help me get my system working ?

I do not believe my batteries are full. I ran my dehumidifier for an hour at which point I received warning 4 on my growatt The growatt shows 0 for PV watts despite getting this kinda sun

I have two battle born 50 amp 24 volt BB5024 batteries wired in series. My panels get at least two hours of direct sun light starting at noon with no shade. I am working to trim back some of the old trees on my property

Sparky I show a max charging current of 120amps. I am not sure if that is what you are looking for. I did run the growatt with the panels in direct sun for an hou today. At which point I got a warning light 4 and beeping.Which according to the manual is lower battery. How can I get my panels...

I will have to look into all this but this might take me until the weekend as work is already hitting me up with tasks...thanks again!

Thanks Sparky and i am running the solar system off grid so I will give it a try

Batteries are brand new from battleborn. When I look at the Growatt display panels and go down to PV it says 0 watts. I am trying to run a dehumidifier but it’s not connected cause I figured it will just drain the batteries.

Thank you MBR I did have two MC 4 connectors that were faulty. Now I have 100volts going to my 48v Growatt but I am still not getting anything for PV watts. I have set my growatt to Solar first and my solar panels do get direct sun for 2-3 hours. I in the process of trimming the tree in my...

Sorry i’ll Reply in my last thread

After replacing one male and two MC4 connectors I have 100 volts running into my 48v Growatt but still no watts are being registered for PV Could this shade in the top right cause no energy to be generated?

And yes Supervstech when I put my multimeter to 200v I get 0 when touching the PV wire to my growatt

Full sun has passed as it is almost 6 here but I measured 3 panels. I set my multimeter to 200v and got two panels to read 33 and one panel 28. Does it sound like those three panels are functional? Thank you for the help

So I check each panel by putting the meter on and in the male and female leads from the panel..what approximate number should I see if working?

Not sure if right but If I turn my meter to 2V = .251 and 20V = .20 Is that what you are looking for?

Sorry again...I see no PV watts on my growatt

Thanks yeah I changed the growatt settings to CSO and OSObut still got the same thing no volts

Nominal DC input voltage is 48vdc High DC Recovery voltage is 56.4vdc Max PV array open circuit voltage 145Vdc Is that the numbers you are looking for?

Sorry guys Supevstech was right my drawing was crap as I did it from memory. Looks like I have the series panels wires correct. I was trying not to remove all the zip ties but here’s a pic

I a pretty sure my batteries and all in one are correct but here is a pic

Not sure what pictures of the wiring you are looking for. My panels off to the left are connected to the panels to the right by a 15 ft wire that goes to MC4 that then goes 20+ft to the basement to my growatt Do you think I might be losing all my voltage there?

Did I wire wrong for 3S4P? I have 48v growatt with 24v panels. I attached my crude wiring diagram and pic of my panels

the second pic shows the setting sun as I am SE facing

SPF 3000TL LVM 48v

The roof gets direct sunlight for 3 maybe 4 hours right now. Each panel is 24v and I have two 24v batteries connected in series completely independent of the grid.

I wired my 12 panels 3S4P but my all in one Growatt still does not register any PV watts. I have the correct MC4 connections and a 20 ft wire to my Growatt. Is there a way I can test my wires to make sure they are functional? Did incorrectly place the panels on my roof?

I wired my panels 3S4P but i only had available 1by3 MC4 connectors so one positive and one negative connection is empty. Should just order 1by2 MC4 cause I am still having problems getting any PV watts Also too my solar array wire to Growatt is 40ft 10AWG but I only need like 25 ft. Does...

I guess because of my incorrect wiring the voltage was too low and my Growatt was showing 0 watts for PV. I will re wire my panels tomorrow and see how it goes. Thank you again MBR

I am a little more than 20 feet and thank you for your guidance

[QUOTE="plr, Better pic

Thanks Guys, I am having problems with any watts being generated by PV I have an off grid solar inverter SPF 3000TL LVM I show a Max AC Input Voltage of 150Vac Nominal Input Voltage of 120Vac Solar Panel Specifications: Rated Power: 250W Open circuit voltage (VOC): 37.6 V Max power voltage...

I made a mistake and wired my panels for 48v for my 48v Growatt all in one but apparently I really need at least 60 volts. I have twelve 250watt solar panels. Two panels are wired in series respectively then everything in parallel like on page 60 of Wills book. Would the easiest way to get...

Sorry and thanks guys. Looks like I was the confused one

Yes I have a 48volt Growatt all in one. Don’t I need to step down the voltage to 12v to run my dehumidifier?