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Programming the MT50 is actually easier if you start from the end to the beginning.

So you of course have called them, what have they said about your order?

What is your watt hours on the fridge instead of amp hours?

Don't know about Growatt but Epever does the same thing as far as asking for a password. If I just hit the enter key again it continues to program. You might just try that.

If you go 24 volt, you will need a 24 volt controller and a 24 volt inverter. You do not want to go from 24 to 12 and then your inverter. Either go full 24 volt with 2 or 4 batteries. Or as you have now, make a 24 volt 2 battery system and then a separate 1 battery 12 volt setup for your 12 volt...

Personally I would back seat the harbor freight panels, install the Jenco panels with a good 24 volt MPPT controller. Only problem then is that you cannot try to charge the battery bank with an vehicle alternator since it will be a 24 volt system. You can push a lot more amps through a 24 volt...

Texas here, not to far from you. Just due to regulations and poor pay back I did not go net metering. I started small and then grew the system to what I have now. I have 2 manual transfer switch boxes where I can run 20 different circuits either grid power, solar or generator.

All of my panels that I have on my setups have been used. Luckily I have been doing business with him for 3 years now with upgrades. He has them listed on FB and Craigs list. You never really know who is shady or not. Check the panels out yourself. So far I have never been burned.

With running 4 systems now, I have them all on MT50's . They are hooked up all the time so I can monitor each system individually.

Personally, I would start off with talking to your elec company in Austin if it hints with grid tie. Education is good but depending on how you will be shutdown by either city or electrical provider will be the key. Sorry really don't have a lot of good things to say about the Austin area...

Keep your existing wiring and install a manual transfer box. With the flip of a rocker switch you can have grid power or inverter power on any circuit you choose to connect. Connecticut Electric EGS107501G2KIT EmerGen EGS107501G2 Manual Transfer Switch Kit 30 Amp, 10-Circuit, 7500 Watts, For...

Actually, on a 4215 BN at 24 volts, you can over panel up to 3120 watts as long as you do not go over the 150 volts.

You may fuse as much as you would like. As far as fusing, i was referring to each panel not a master fuse on the circuit. You need to have one master fuse from the panels. Also, i did not see your panel specs and guessed that your panels are rated between 300 and 400 watts per panel. With...

Not for just 3 panels. Guessing that your 3 panels on a perfect day may produce less than 1000 watts? No real reason to fuse each panel.

I am running 12 battleborn batteries. I started out with 2. More i bought the more circuits i dedicated to solar. It is a never ending project.

Very good possibilty of frying your controller. With those panels, you could run them in parallel. You would somewhere in the 24 amps and 49 volts.

Bear in mind that i have my batteries go into float every afternoon. I do this so i can run fridges and mini splits at night time while i am fully charged. During the day, i always produce more pv than what is needed. As long as i am producing more pv than what i am using, i will intentionally...

I have about 17,000 in it. Although 11,000 is batteries. Price and availability has come down since i did mine. You could probably do what i have for around 12,000 now. You do your own install.

Epevers

No sir, still on grid. I do have 2 manual transfer boxes , 10 circuits each, where most of my 110 power is pulled off of solar. Still powering dryer, range, hvac off of grid. I am powering 2 minisplits off of solar though. 2400 sq ft home.

A. If you are making more pv solar than you are consuming during the day then yes, you will have battery storage reserves at night for power requirements. B. Cycles will depend on type of batteries, like lpo4. One cycle is 100 percent to zero although i would not push it that far. C. B...

Not really, you are pretty well good to go. I am also running Battleborn batteries but a lot more. 6P/2S. The main thing that you want to watch is when you have them hooked up to your controller and charging when they are going into float mode at full charge. If one tops out faster that the...

Been over 100 for a while now. Solar components taking a beating melting. Panels all tested ok. Replaced fuse assembly and branch T. Working ok again. Was only pushing 56 volts and 15 amps, wire 8 guage.

New panels or old panels? Also you sated at 1 pm in the heat of the day? As panels heat up up they are less efficient. They are more efficient in the winter months. Yes panels on the south side but at 90 degrees of your solar panel? You did not state slope of roof. Are the panels at a true 90...

I bought mine off of Amazon https://www.amazon.com/gp/product/B07VX41MPR/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Any time you can add an extra heat sink, it is good. But if the controller is crap, you probably will not accomplish a lot.

I tend to lean on crappy controller and possibly pulling too many amps at one time with a small inverter. Anything with a high in rush you have installed? Still leaning on a crappy controller.

Are these batteries hooked up to an inverter. If so how many amps are you trying to pull out.

Ok, max controller watts is 390. Max volts on controller is 50 volts. How are your panels wired? Series or parallel. Have you checked voltages and amps on the controller with a clamp meter? In other words, what are the panels really putting out? I have a hard time trusting pwm controllers.

Ok, good info, what is the controller specifications. Max watts and volts on controller? Guessing panels wired in parallel?

Your in error, it works well with lpo4 batteries. I am running 2 of them. It is programmed with the user function. You need to put together some more information. The blinking lights mean that the batteries are in float mode. When in float mode what does each battery read with a volt meter? What...

I bought the same setup for my first system. Worked well for what it was. I moved it from my house to my deer lease cabin. Once again works well for what it is. I learned a lot as far as a first systems but it did not come close to what i wanted to accomplish at my house. I learned of all the...

You did not say what amps and volts that your panels are producing. Also what is the watts and voltage max on your controller?

I have 3 of the Epevers, all work great. I program with mt50's.

Before you get all judgemental, no permits needed if it is not grid tied. 100 percent legal. And yes, i am not one of the sheep that needs to ask for permission first when there is no need to.