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I had built a 8s 280AH and did the whole DIY thing. Saw Ray Builds Cool Stuff on YT showing the Apexium DIY box, and really liked what I saw. I've been building the 16s 280 EVE REPT / Apexium rig and love what I see and my experience with purchasing over email with the REAL Jenny Wu was...

Thank you for the fedback! I had only charged on and off today and had the Cellmeter 8 Battery capacity checker hooked up to easily monitor voltages. With the charger limited at 30 volts (charging at 223w) and total cell voltage only up to 26.5 v, I seem to be well below any danger thresholds as...

True. Instead of $353, I opted to the $43 Facon CW-ST725 pad here,, which my string of 8s 272AH LifePo4, set right on top of neatly! It's been this way for almost a year. I power it with my 24/12v buck. I live in TX so I rarely am below 35F. Details: 7-1/4"x25" RV Water Holding Tank Heater...

I have 4. Only have a single hooked up right now, but I'm very pleased with it. I intend to wire 2 parallel and 2 series.

The SRNE hybrid inverter I have (HYP) has a ton of built in safety features, including Load output short circuit protection When a short-circuit fault occurs at the load output terminal, the AC output is immediately turned off. Which this is a feature I can't see why you'd want to disable. Do...

I looked closely and realized that paralleling was a better option, but just about went with the ASF. It's a nice inverter, and am glad to hear you are happy with yours.

This all has changed, now the latest idea would be to use (4) arrays of 10 9s panels of the Evo6 620W Bifacial Panels, it aligns much better with the voltage and amperage range of the HYP4850 SRN Hybrid 120V Split Phase parallel inverters I already have.

I wasn't sure where to capture this info for others, but this OP should work as it does relate to the settings of the BMS App and getting BMS to talk to a SRNE hybrid-hyp4850u100 inverter. I had to go through Apexium Support engineer to sort out the connectivity issue I was seeing regardless of...

I'm busting out laughing at this, because I responded to his Italian in English and Spanish. OOOPS. Hahaha. Fixed it now. but dang that's funny stuff right there.

Yes, but... It's lower than that in eco mode if the loads aren't requiring it. I really like my SRNE HYP units (only running one to charge my battery and be an inverter at the moment) but will eventually have all 4 doing split phase parallel.

I hadn't looked at it that way. Sorry again for my newbness. Appreciate ya'll tolerating my questions (it's how I learn, before I make the more costlier mistakes and learn the hard way). And yeah Hedge had another interesting thought I'm now bouncing around. I do like the wisdom of...

@Zwy Wisdom sir is not an easy to obtain gift. One of my favorite quotes: “Experience is a hard teacher because she gives the test first, the lesson afterwards.” ― Vernon Sanders (Baseball pitcher for the Pittsburgh Pirates) This goes hand in hand with another one that comes to mind: My most...

Never Sunf kits. I would and did buy from the real Jenny Wu by email (not Alibaba 'imposters') 100x. U.S. Warehouse, proper labling, product that lives up to spec, and grade A. Watch Ray Builds Cool Stuff YT about the crap that the SFK vendor pulled on him, lies, threats, and outing his personal...

Thanks. you are right about the MH recommendations to only have one ground rod. I'm learning. Can't find where I got off track on that SPD to separate ground rod idea, but I've found so many references to why it's a bad idea to have a separate ground rod. Actually one thing that was enlightening...

OK, not trying to be a wize guy here... but VOC, as I understand it is the rating when the circuit is disconnected., meaning you won't be producing any power or at least consuming any power since you've removed the load. So I interpret that as long as only the VOC # is above the 420 you...

So should I say to heck with the Over wattage concern (5500w vs 10s=6200w on paper in the nonexistent perfect world), and go full on 10s?

Let me get this correct, you bought the wrong one (a 16s) and you expect it to work properly on a 15s? I don't think this sounds like a wise idea. On AliBaba the Daly store shows separate models for a 15s vs 16s.

I'm very much a newb at this, but trying to get a handle with a good deal of research. See my post here for details, though the panel of choice has changed from OP: https://diysolarforum.com/threads/wiring-solar-to-srne-hybrid-hyp4850u100-h-in-2-2-split-phase-parallel-og.73481/

I'm looking for some wiring advice from you electrician types or skilled Will Prowse types out here. Backstory: I am new and interested in going DIY Solar. Sorry for the long back story, but figures it may give some clues. I've built a off-grid 24v (8)272AH pack with 200A BMS and 3000W PSW stand...

was just watching this video... about that very UL9540A and UL9540 and Energy (Battery) Storage Systems https://www.ul.com/resources/energy-storage-systems-what-you-need-know-about-ul-9540-and-9540a

Can I safely use the FWH 'series' Bus fuse? I want to replace the crappy 150A chinese circuit breaker with a fuse. I found these fuses which I could bolt onto each end of for my negative cable. I read the beginners resources and don't see the FWH series mentioned. I know to use 1.25*A formula...

I also just ordered (8) of the Lishen 272AH LiFePO4 Prismatic cells from Emily Peng at Basen. I was looking at the Link for the 280AH EVE batteries and while the qty said they had several thousand in stock, both Basen reps I spoke with said they sold out the previous week and apologized that the...

He basically said: "Good morning, I purchased and installed a PV system consisting of an 8 kw megarevo hybrid inverter and a 15 kw battery, to date I can't set the lithium batteries, the inverter only accepts lead, can anyone help me, thanks. " @Mimmo try: Check instructions in owner manual...

Oops, that left side, apparently someone forgot to weld on the pcb screw studs that the BMS wires come from. :/ I had absolutely 0 quality issues with my Apexium build but I only bought one. I do have more info to share after dealing with a whole bunch of guessing games and working with their...

She's fantastic. Super happy to hear you ordered from her. I assume you used her gmail account to contact and order from her at Docan?

Update on the China AliBaba query Last night after my post the SunEvo rep said she was sorry but regards to the model I was most interested in and was planning around, they were unable to open up the production line for only one pallet and it would require a whole container. Which sucks since I...

I have been using one of the Facon CW-ST725 under my 8s 272AH LifePo4 string for about a year now. If is almost the exact length and width and built in thermostat. Granted a a failsafe my Charge Controller and My BMS also have temp sensors if something is too low or high... Seems to work well...

Thank you for the quick and very helpful response. I appreciate that you pointed out the calc tools and numbers you used. Wow, I overlooked that it has 1 MPPT per unit, since I saw 2 PV inputs and have been looking at dozens of models, so great catch! So in that case, your point was that I could...

I tried for the life of me to find anyone on here or somewhere that tried out this new 100balance product. I got the non-smart version and highly recommend avoiding the non-smart version after what I experienced with the dumb one. In truth after working with support I finally gave up and sent it...

Thanks for weighing in. Yikes. I overlooked one thing about my most recent thought of 10s 620w bifac. The 5500W max for PV on the inverter. I would need to revise my number down to 9s in that case. But I'm wondering, wouldn't Ohm's law apply on that max. Meaning if my string is below inverter PV...