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Update on my SA connection...I confirmed that my local router is 2.4 GHz only. So it should be compatible with SA. I attempted to change my site from .za to .us by logging into the Pi WiFi 10.0.0.5/welcome, and it allowed me to select my geographic region, but that did NOT change my site...

True, I know I could hardwire it to the MoFI 4500, but routing the cable between the router and the Orange Pi on my boat would be a challenge. Trying my best to avoid that.

How do I know if my boat WiFi router is 2.4 or 5 GHz? I am using a cellular router (MoFi 4500). I can also access the marina WiFi, but I don’t know if it’s 2.4 or 5 GHz. So the SA only connects to 2.4GHz?

Cool! I’ll give it a try and report back. Hopefully it works…Thanks, Adam!

Add me to the list of SA owners who cannot connect to the internet. When I’m on the SA WiFi network it receives the info from my Growatt just fine. But when I try to configure the LAN I have on my boat in the Configuration page, it response that I am not connected to the internet, and I should...

+1 for BarkingSpider’s method! I used it recently on a high 310 Ahr cell and it reduced the V from 3.6 down to 3.3 in about 15 minutes, no sparks, no warm wires, no muss nor fuss. My measured R of extension cord was 4 ohms.

All new in October/22. I wired the 8 cells in series, added a JBD 100A BMS, pretty sure I got the balance leads correct. All cells started at 3.29 +/- 0.02V. I did not top balance, since the voltages and resistances were so similar.

According to my BMS, I have one cell of of an 8S LiFePO4 battery that is significantly higher then the other seven (3.6 vs 3.35V at full charge). Other than doing a discharge then top balance all 8 cells, is there another method that would get this cell back in line? Would a discharge of just...

Right! Thanks! The panel ratings of the VOC should be about 120-130 total, so hopefully that’s enough margin.

I have a Growatt All-in-One inverter, 24V, 3000W. The SCC can accept up to 150V of PV input. I wired my three panels in parallel thinking I would later add three more panels. I think what is best is for me to rewire the panels in series. Thanks all.

Sorry, but please explain to me, a relative novice, why you cannot have 2 panels in series, and add a third panel in parallel. It’s probably obvious, but I don’t get it.

I have three 455W panels already roof-mounted, and wired in parallel. I'd like to raise the PV voltage coming to the controller. I would like to make the least wiring connection changes as possible to series connect two of the panels. Would the wiring to the panels shown in the photo accomplish...

The VoC and ISC of the panels are about 49.3V and 11.4A. Could I run 3 panels in parallel to keep the voltage low, and the amps would be low enough for the 60A MPPT controller? Second string of three panels in parallel to a second 60A controller?

Yes, parallel, of course, my bad. Yeah, 36V would be odd. I agree, going to four batteries (24V) would give me more flexibility with solar components, so I think that’s the new plan. And yes, I did the power audit, using this for a bare minimum residential backup system, I think I need about...

Hi, I’m designing an off-grid system, planning on three 450W panels (but may expand to 6 eventually), 12V LFP batteries (three in series, but could buy 1 more and go to 24V). The batteries will have BMS protection from under/overcharging. What solar controller do you you recommend? Is series or...

Hi, I need to buy 5 panels in the 400W range. Any domestic or Canadian wholesalers that you can recommend? Thanks!

I have two “models” of 4S JDB BMS units. They both worked well under the XiaoxingBMS iOS app, until the recent software update. Now one BMS units works fine, but the other can’t update any changes to the BMS configuration. Anyone have similar issues?

Glad to hear the general opinion that my issue is “normal” and not harming my batteries. Through this forum and elsewhere I’ve learned two lessons. First, when my batteries are charged above 3.4 v/cell, I’m really working at 95% SOC, the steep part of the charge/discharge curve, so no big deal...

Sorry, curiouscarbon did address my question, thanks. The other consideration in play here is that my batteries are in a boat, hard to access frequently, so I’d like a solution that didn’t require frequent access and manipulation. Sounds like a Kilovault 24V ($39) would do the trick, yes? Much...

I’m not sure how the concern for out of balance cells came up. The cells within my two batteries are very well balanced, it’s the voltage difference between my batteries that concerns me. Switching to an 8S BMS sounds like a good idea. I don’t think anyone responded to my question about adding a...

Ok, thanks for the input. Question is, can I leave my 4S BMS units in place to balance the cells within each battery, while connecting a Victron or Kilovault balancer to equalize the voltage between batteries? I hate to think I bought the 4S BMS units for nothing.

I have two EVE 280 Ah LFP batteries (12V each) connected in series (24V) each with its own BMS. The BMS settings are identical. They are charged through a Growatt 3000W inverter through either solar or line AC. Early on the individual cell and total battery voltages were very close, but lately...

So, I think what I’m hearing is SolarEdge has made it impossible to DC couple, unless it’s connected to their Energy Bank system? Is that right? Too bad, as that would be most efficient. The Outback, SMA, Schneider and Sol-Arc inverters for AC coupling are very expensive. Are there any other...

The goal is backup power only, manual switching is fine. Nothing special or automatic. Backup load usage would be in the 3-4kW range at most, by selective use of loads. Talk to me about AC coupling of two inverters…how is this done (wired), does the second (off-grid) inverter need to be...

That’s a major concern you bring up…didn’t know that. No, I was not planning on replacing the grid Solaredge inverter as that’s needed when the grid is on. I was thinking of re-routing the panel DC power (via a manual switch) to a second inverter that can then power the critical loads and charge...

I’m not new to solar systems, having built my own off-grid system with DIY EVE 280Ah LiFePO4 cells, a Growatt 3000W all-in-one inverter, and 2000W of solar panels. I understand grid-tie systems, but have not worked on them. I’ve learned a lot from this forum and Will’s videos. So I thought it...

Nope, so thank you very much!

Is there a simple way to turn the Growatt 24V 3000W unit on/off remotely, using either wireless or wired connection? My Growatt is in the engine room of my boat, and it’s a pain to turn it on and off. I don’t like the idle current draw, and so I shut it off when I’m not on board. I heard the...

Of course, that seems logical. I didn’t really understand how the BMS units would report the amperage flow when connected in that battery arrangement. Also, still learning to keep amps at 24V separate from amps at 120V. I was surprised at the 44A the microwave was drawing, until I realized that...

I am trying to sort out a mystery in charging displays in my marine DIY system. Here’s my setup: - I have four 12V batteries, each made with the 280AH EVE cells. Each battery has it’s own 4S BMS. - The four 12V batteries are connected in a 2S2P arrangement, that is, each pair is connected in...

The one I have is Growatt 24V SPF 3000TL LVM – 3kW, purchased through watts247.com. I don’t know if it’s the “US” version.

When my Growatt is off, meaning the rocker switch on the bottom is off, the display screen is dark. If I then apply AC in to the unit, the display wakes up, gives a long beep, and begins to charge the batteries (display shows that diagrammatic). So that works. Based on the thread Rednecktec...

I meant to type “solar controller will charge the LiFePO4 batteries”

So, I have two 24V banks of LiFePO4 batteries on my boat, connected to a Growatt “all-in-one” 24 V 3000W inverter/charger/solar controller. As many have noted, the idle current draw of the Growatt when it is ON is considerable, so I like to leave it off, as I am away from the boat for days. I...

Thank you all. Sounds like 10 or 12 gauge would be both safe and prudent.