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ALL, My setup is as followed: Growatt 5000 ES, with a split phase transformer. 2x 5kw EG4 batteries. We are completely off grid and have a Honda i2200 generator. My question is two fold: has anyone had any luck with using the generator as the AC input to the growatt? If so, does this charge...

we have a com cable that goes to the growatt, so there is a Comms between the BMS and growatt. but i see what your saying it only measures voltage at the end of the day. So you are suggesting, in setting 19, to raise it from the default 56.4 v to say 57 or 58v? and with setting 20, default to...

Could you explain this in more detail for me to understand? This might be a possibility when we show up to camp and we turn back on the growatt, our batteries are around 70%~ so maybe when they drop below say 50% the growatt on standby kicks back on during the day? I am going through the...

Okay then i think there is an issue with our growatt... we have been doing that but when we arrive back to our camp after having turned the growatt in standby mode; there is full sun but the growatt is dark and not charging the batteries. Must be something wrong with our growatt.

Does this happen when Power save mode is enabled?

All, We have an off grid cabin with an Growatt ES 5000 and 2x 5kw server rack batteries. (EG4). We leave this cabin intermittently and don't check our growatt. What settings for our growatt should be enabled so that when the sun hits the panels, the growatt turns on, charges the batteries, and...

So i have a laundry list of questions for you. The panels at 70 degrees above horizontal, when you say the snow removal is easy, you mean, you manually have to go up there and clean. our issue is that no one is at our Cabin from Dec-Mid march and we are subject to snow storms, (not as bad as tug...

30 degrees from horizontal. actally its more like 26 degrees from our roof pitch. My uncle and i were going back and forth. He says we wouldnt have to clean off snow if we had the panels more vertical (70-90 degrees from horizontal.). I think that, even if we get them to 70 degrees or even 80...

Question, What angle do you have your solar panels at? from the image they look nearly vertical? Also with out getting into specifics, what region are you in?? we have 8 x 300 watt panels at 30 degrees in western NY. they are mounted on our roof. My uncle wants to create a steeper angle to...

question on this, the wire used to connect From the 48v bus bar to the 48v-12v converter... is there a certain gauge i need for the high voltage? The converter has 16 gage wire... My batteries to the bus bar to my growatt are all 2 AWG.... SO should i just stick with 16 Gage?

Wait so what do you mean by wiring a regular 120 volt AC heater elements? could you give an example? Is that like wiring a heating pad i would plug into my house, stripping the wires and then hooking it up directly to the Bus bar? Also, any recommendations to heaters/heating pads that aren't...

So something like this?? if so what type of amp Breaker? a 20 amp Breaker? or something bigger? it should only be 5 amps with the circuit.

SO with the snap disk, i am not sure how i would wire that or where to place that? It would have to be in our open battery box but the temp of the box could be lower that the actual batteries where the heating pads are attached.... again just not sure where i would wire it in so the heat would...

SO the heating pads Kick on at 45 degrees and kick off at 68 degrees. I may install an additional temperature on/off switch see below Switch that way They will default to this if the internal temperature module craps out

All, See attached proposed diagram for connecting Heating pad for my Lithium phosphate batteries I bought at 48v to 12v step down converter, it comes with a 20 amp fuse connected to the 48v hot side. We already have 2x 48v batteries but our problem is that they get very cold during the winter...

So i just posted about the issue i had in this post. Check it out But just to be clear, you've had no issues since then? and everything is charging equally? did you have any alarms go off at all? the more details the better. thanks in advance.

Hi all, Running into some battery issues with our current set up Growatt 5000 es, 1x G4LL LiFePOWER 4 battery (Runs great) (this battery but no LED screen) (Picture Battery A) 1x LiFe POWER4 battery - Running into issues Link (Battery B) Issues with the Eg4 battery include: Unbalanced...

Hey i am running into the same issue as you stated. after removing the communication cable, has it resolved the issue?

Just an FYI. I had to go FROM 2SP4 to 4S2P because the min input voltage on my growatt ES5000 is 120Volts!!

quick question, why do you need the voltage control? and where would you set that up in the circuit? does the voltage control prevent the heating pad from using too much energy?

I've looked through a lot of forms, but I cant seem to find any that give a tank heating pad with low temp cut off option. They have all been 45F on and 68F OFF. Which is way to conservative. Are there ones that go on at 35F and off at 45F? i found one but thats from battle born and its $200+...

With your heating pads, do you know what temp they kick on at? and shut off at? I've found some but its 45F on, and 67F off, which is way too conservative. Id like to have something like 35F On, and 45 off. Any way to jerry rig the temp settings?

Yeah I've heard mixed reviews about adding rainX or a foreign substance, might degrade the coating they have on it already?. Some people say you shouldn't clean off the snow cause it would "Void the warranty" but we have no warranty on these used panels. I am willing to try hydrophilic or some...

Got it, we are building an insulated case for our batteries so the ambient temp can get down to 20F at night and we are trying to get an estimate for our run time during the winter days. The insulated case might help.

We tend to have snowstorms in the early months of December and November, and we are sometimes not there for weeks at a time to wipe the snow off our new system. Our roof pitch is 33 degrees, but I wanted to know after a big snowstorm how long does it take for snow to melt off panels? I've been...

we can't do that because it's in a cabin/outhouse structure 5 feet above the ground. also ground temps in NY are freezing in the winter.

we can't do that because it's in a cabin/outhouse structure 5 feet above the ground.

thats a great idea to put the heating pads in Series. I did not think about that. And at the end of the hunting season, Yes, we would unplug everything. But there are two-week gaps where we leave things plugged in and we are not there to wipe the snow off the panels. One issue though with our...

Not likely..... not sure, but how would this help?

Again, to clarify, we are trying to design a solution for our worst case scenario: Snow on our Main Panels, Our main 5kw Battery shuts off due to < 20% discharge, and we are not there to clean off panels. In that case, we would want a separate 100W panel at a steep angle to act as a back up and...

So i wanted to get some opinion on setting up a separate system, 100W panel with a small battery that would run a heating pad for our Bigger 5KW LiFePO4 battery. Our specs (48V 5.12KW LIFePO4 battery from signature solar, 48V growatt 5000es, and 4S2P, 2,280 Watt solar array) We currently have...

Got it, the 18 amp max is news to me... So looks like the max parallel I can have is 2. not 3. that's a bummer. We are located in upstate NY so mostly cloudy and we probably wont generate that much energy. Another question for you, what kind of DC breaker do you have from your Panels to your...

Yep, Just realized that after calling signature solar. And wait, 18 Amps max? where are you reading that by chance? I checked the specs but its said max PV charge current amp is 100 amps... Also just wondering, where are you located? and what is your sun hours like?

I feel like an idiot, but I just checked my specs. our min VDC for array is 120 Volts. and our max is 450 V-DC. So I will be putting them in series! With min VDC, is that VMP or VOC of the panel array?

We just hooked our panels up to our Growatt 5000Es, and the growatt was not registering they were there. We have 8 Panels 300w (45V 8amps) hooked up in 2S4P (90V 32Amps). Our battery is 48V. so we figured the sunlight was too little or our panels our wired incorrectly. But shouldn't the symbol...