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Yes! Is there a way to change it? Every time I click the "Enter" button on that setting, it automatically advances to the next setting. ?

Thank you @brucenolan and @timselectric. I was pretty sure SA was the way to go after my research, and your suggestions help reinforce that. Do either of you know if SA offers a way to manage on/off/reboot of the Growatt?

Yes, I've logged in there. The site barely loads on mobile, but on desktop, doesn't seem to show any relevant configuration details which I might be able to modify. I've also had zero luck locating any setting to specify 24v config in the wifi dongle admin, or anywhere in the app. I'm kind of...

As it turns out, I've been looking very closely at Solar Assistant. I'm currently awaiting a response from them on a few questions about use with my JK BMS/Growatt. You're using a Growatt inverter? If so, does SA allow complete/granular setting changes, bypassing the need to use the control...

Thank you Bruce!

I don't have their contact info anymore. I found it on a local classified. I was hoping that at minimum someone here would either have seen this same behavior (or the solution for it), or know how I can elicit support from Growatt directly. So far my search for contact info for the company is...

I purchased it from someone locally who bought the wrong configuration.

Has anyone had any luck reaching out to Growatt for support? I have been running my Growatt SPF 3000TL LVM-24P for a few months now, and while it's not perfect, it does get the job done for the most part. However, one issue I've had since day one with the Wi-Fi dongle/ShinePhone iPhone app is...

Curious if anyone has a similar experience with their Growatt + Shinephone app...

Hi, I have been running my Growatt SPF 3000TL LVM-24P for a few months now, and while it's not perfect, it does get the job done for the most part. However, one issue I've had since day one with the Wi-Fi dongle is that the Charge Voltage and Float Voltage only allow values in a range of...

I have a 24v nominal battery made of Headway 10ah LFP cells, and despite taking care to make sure the parallel strings are all roughly the same capacity, I'm finding that a few strings dropping in capacity much more quickly than others, not always the same strings. The BMS is a JK with 2A...

I am interested in potentially using Solar Assistant for my RV solar build. I'm curious, though, how many of the components can be connected/monitored via SA. The components I have so far are: - Growatt SPF 3000TL LVM - Renogy Rover 40a Charge Controller w/bt-1 module - Renogy One Core wifi...

Hey @WOLF-GANG, is there a version you can link to for 24v nominal lifepo4 (29.2v, 8s configuration) with 200a charge/discharge?

I mean, it's red, but I have fingernail polish. ?

Pretty simple, as the title suggests. I've read quite a bit over the last few weeks and have seen endless debate over whether a disconnect should be between the battery negative and load, or battery positive and load. I'm not an electrician, but it seems that there is a fair amount of...

Thanks @DIYrich! Are those overrated 2-pole breakers ok for solar? Or do I need to have them both over my max current *and* under some upper-end value?

I need to order breakers/fuses for my current (and evolving) solar build. Hoping for final sign-off or correction so I can sleep well knowing it's all well-protected. PV: My understanding is that I don't need fuses in-between panels when wired in series or 2 (or fewer) in parallel. That leaves...

Thanks! Would you recommend breakers for isolation, or these Blue Seas power disconnects I have listed in my diagram? My understanding was that the WFCO breaker panel I have provides this protection, but is there something else I need on the AC out from Growatt to AC in on WFCO which I'm...

Does this mean that I should power down the Growatt (powering the AC/DC side of the RV) to remove as much load as possible first before throwing a disconnect between the off/on position? Or something else? What about on the PV side? I am still looking for the correct fuses and disconnect...

Bump. Hoping there are any Growatt users who know how to achieve this...

I am working on an RV solar build. I have an initial system installed and working (which has been an awesome start), but I still have 2 additional panels, another MPPT controller, and circuit protections to install. The last part (circuit breakers, disconnects, fuses, etc) is what is most...

Did you ever do it?

I was about to post a thread on fuses and breakers. I'll post one on battery charge rates as well. Thanks for all your input @Rocketman!

Are your cells LI, or LFP? Do you think the headway LFP cells are just ambitious in their spec? Or do you think I can depend on it?

Hey Welshy. Did you ever get a definitive answer on this? Also curious about Renogy One....

Got it. The BMS used in the batteries is a custom-built BMS. It doesn't seem to have the specs listed, but I was informed that it's a 60A BMS. Assuming all batteries/BMS are functioning correctly, then having them wired in parallel with busbars would allow them to accept a much larger number for...

Here's the data on the individual Headway 38120S cells in my batteries. It lists recommended charge current at 1C (10a), and max charge current at 2C. I was mistaken that max is 3C — that's for discharge.

Thanks! Fixed!

I have the Growatt SPF 3000TL LVM with the WiFi module, and it's all working correctly. But the battery voltage only gives whole number values in the app (rounding up or down on half-volt values). Is there any way to configure the app to show 1/10th volt values like I see on the Growatt panel...

Thanks Rocketman. Are there any considerations re: max potential combined amperage when running multiple controllers to one bank? The cells are 1C (10a) standard, but can charge as high as 3C I believe. But I'm assuming the BMS on each battery would handle charge current anyway, and limit...

I've gotten some really constructive feedback in this thread so far. Attached is my updated plan design updated with suggestions/feedback proposed in this thread. Green BG is new elements being added, and yellow is the modified panel configuration (from 3 panels all in series to 4 panels in 2p2s...

Hugely appreciate both of your experience and brains. Thank you! I see on page 43 of my Growatt model's manual (24v version) that it is rated for 80a PV input. But if I'm misunderstanding something, please definitely correct me. This is a much more sound plan over the one I had at the...

Thanks @sunshine_eggo! This is all VERY helpful information! I am very new to all of this, and feel a bit like I'm drinking from a fire hose. I really appreciate you and @Rocketman taking the time to addressing the flaws in my thinking as well as my system. I'm still learning much of the lingo...

Thanks @sunshine_eggo! Here's the spec sheet on my panels: https://signaturesolar.com/content/documents/URE/JW-HT144Pspec.pdf The upper left most chart on page 2 (third column from the right) indicate that my panels have an open circuit (Voc) of 49.03 and a max voltage of 40.73 under load. I...

EDIT: Updated plan design here (further down in this thread). I should have 2 additional 395w panels to add to my solar array in the next week or two. My plan is to add the Renogy Rover 30A MPPT charge controller to handle the two additional panels, since the Growatt 3000 24v can only handle...