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Yes, building one now. I drove 2-7/8" pipe down 6 ft into the ground as my base, and 2-3/8" slides right into it for the frames. Weld to base pipes as required. Be aware that this is not mild steel, and if using a cold saw it will rip out carbide after a few inches cut as it work hardens as it...

Yes, I've had the same experience, and it was salt water. I would defineltly drain those box tubes, and drill a couple of hole so that rain could flush out the salt. All it tales is one pin hole or shitty weld and the ocean gets in.

Inrush current filling the capacitors, most likely. Use a carpenters pencil as a resistor and put the positive on one end of the lead and the CCS terminal at the other end of the pencil. Wait 30 seconds and then hook up with no spark as the caps are full.

A simple electric eye for a farm yard light is configured to turn on after dark. Wired to a normally closed relay it would be activated by the electric eye to open the relay and your pump is off till daylight.

And if they are 12v each black box in the picture would be two 12's in series

You would be better to post a diagram of your battery bank connections if you want advice, and read the above recommended files. There is a good way and a bad way to connect.

The unit I installed for a friend's 24v system has an adjustable output voltage, so his breathing machine, although on a 24ft run of 14ga wire, can be fed a 12.75 volts at the machine. It is a couple volts higher at the converter, but the adjusment is a great thing.

First off, the OP 'thinks' it is hard on the inverter but not sure. We need sure. Second, a soft start would be a disaster for a welder, slowly trying to form an arc and giving no penetration for a spell til it came up to speed. Third, there are transformers out there, I have one and the type...

If you are in a city or it's control area, you are kinda boogered. I may be wrong, but I have never seen a UL approved panel over 350 watt. They do make them over 600, but not approved. If you are insured and troubled about legalese, you are limited in your wattage. And yeah, I think grid tie is...

I'm with you on ground mounts being the best in our environment. But also I'm a big fan of steel roofs. In my case, with an almost always western wind, south facing means my panels are edge on to the wind. I've also learned to build my buildings facing gable end into the prevailing wind, and the...

Thanks for your response Eggo. I read the Wiring Unlimited and it was a good informative article other than from page 9 consistently getting the DC flow direction wrong. They have shown electron flow from positive to negative. Electrons are repelled by the negative charge and attracted to the...

My neighbor is running a battery bank consisting of 8 Powersafe SBS 190 AH 12 volt agm batteries. He has them wired in 2 banks of 4 batteries in parallel. These 2 parallel banks are then wired in series so there are 4 batteries on each side of the series connection cable. Electrically this...

Thank you. Love the welders boots in the last pic:love:

It's a laughing matter today, but a lot of foolish things we laughed at twenty years ago, are rammed down our throats now.

Would used 2-7/8" sched 40 pipe work for you? Used as it is dicarded from oil fields. Miles of that stuff available at farm auctions and oilfield service co's. They usually ask $1/ft

Have you attempted to measure this voltage between the rods on the battery box and the concrete? I can' find it at the moment but I remember reading about the voltage that develops on an antenna and they based a calculation on voltage per height above ground. I remember Art Bell from the After...

Here is an article that may help you, fHorst https://electrical-engineering-portal.com/how-dangerous-are-induced-currents-in-transmission-towers-and-poles

No, you are right. I never saw the rods, his build is so nice, I should have looked for them.

Can you tell us how you did this, it looks top class.

Very nicely done. I noted that on both batteries you do not have any compression on the pack. Do you find the pack swelling or is it unnecessary?

Or...you can have your BMS run a solid state relay like Chargery does to switch the DC load. That way the BMS does not handle high amp loads on a printed circuit board.

Could you elaborate on that info a bit more, or some sources?

You can hook as many watts to it as you want. The MPPT part can only use 7000 watts, but overpanelling allows earlier charging starts and later charging time. When the sun makes the array put out over 7kw, the excess is wasted unless you need it in the house. All inverters will use a battery to...

Sorry to hear this happenned to you, and all I can say is my dealings with Michael were honest, straight forward and the price was right. I have nothing to complain about. Some things are out of a sellers control, and with the shipping bungle up that is ongoing, I expect to see lots of shortages...

I can't remember where I saw this but a simple window screen mounted in that box about mid way front to back will boost output. It's black and has a huge surface area to collect heat.

You can over panel with Watts, but not Voltage. I would only string with 2 panels because you need headroom for cold winter days when the voltage spikes up. Max voltage is 146 for the 12000T I have 20 panels in 10 strings. 5 strings feed one charge controller and 5 feed the other.

The Growatt 12000T will stand a surge of up to 15KW for starting current. You are confusing input with output. All inverters quote output and surge power. The input is as stated 7000 watt solar, and they can be over paneled without harm. The over paneled watts will be wasted in summer and...

Congratulations on your success. I have been following your thread for along time now, and I have the same stuff as you, and it is good to hear of others doing it right

Well, his usage is pretty light, but it seems to be the best solution at this moment, is to reduce the battery to 3 or 4 in parallel. He uses LED lights, CPAP, and sometimes a movie on his little TV. He may want to sell some batteries, but for what he paid for these, he could never buy them again.

First, thank you for replying, Michael. I am leading him slowly as he can afford it, towards this goal. 48 volt is the way to go and has so much more in it's favor. This will mean a new true sine inverter or an all in one, plus a 48x12 volt DC supply for his 12 volt CPAP. I have funded him for...

Somebody set up my offgrid friend with bunch of AGM batteries and a 280 watts of solar panel. He has 1700AH of 12 volt AGM batteries in parallel, divided into 2 banks. All are 12 Volt and that is also his inverter input. He has borrowed my 150 amp charger, and is using a gas gen to recharge. He...

Is your generator 120/240volt? Your power cord is feeding one phase of a split phase panel when on solar

Never seen that sort of pile. I suspect that if you have frost down 1.5 meters like we do, that you would have heaving. I have included a drawing of what we in the west call screw piles. My house and deck sit on them It takes a Bobcat about 5 minutes to sink one 10ft deep and rotates 18 times...

I think you took it wrong. No battery will ever stand the abuse a welder can dish out. The discussion I thought was about setscrew vs crimp. Im all for crimp. I have tried a bunch of stuff, and if air arcing out a weld and you feel cable getting hot, throw the stinger in a water bucket. I would...