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So just bought four of the wattcycle batteries off of temu for $590 shipped. I don't have a good load meter however I just ran them to 42 volts which is when the inverter is set to shut off at. And then put them on a charger and just got 104 amp hours of charge into them. I'm not sure that...

So I never really understood the solar mini split over just going with an all in one and a normal mini split for the same price or slightly cheaper. So I am probably going 48v. Between having my money situation change. (I was scrounging everything for a tax real estate auction that was today...

Ok so I have a house I am working on. Looking to get 1 room going with AC for now. The issue is I eventually wanna go for a 48V system but don't want to throw much money away now. What I currently have. Xantrex ProWatt 600 inverter. Surges to 1200W 5k btu window AC. 450W running 10 530W BYD...

Hmm. Given the voltages here (I am not a stranger to these voltages although all my experience is 480V AC.) I would rather not cobble a board together. The voltage acquisition module above is the kind of thing I am looking for. I am still not sure if I am doing this or lowering the string...

Ahh. Did not know that. I'll admit that I'm probably in a dangerous spot knowledge wise. Solar wise most of my knowledge is from YouTube. And I've yet to see a solar YouTuber with actual electrician knowledge. Will is probably the best but i am fairly sure he is mostly self taught as well...

Not sure where my issue lies. Coworker put together a 4s life4po battery pack. Using these batteries, this bms (The actual bms does say lifepo) and this charger. is what it is doing but one cell is wack. This is what happened when I disconnected the charger. That same battery went...

https://pv.byd.com/sites/BlobServer?blobtable=MungoBlobs&blobwhere=1557028631862&blobkey=id&blobcol=urldata&blobnocache=true I believe the panels are 535W BYD panels but I can't find my photo of the label. Somewhere between the 520 and 535w panels on this datasheet. (They are currently about 40...

I guess I could understand it if you're not running batteries at all, but outside of that an inverter and equivalently sized mini split seems cheaper and gives you an inverter on top of the mini split. Just ordered a 3000EHV-48 from signature solar and four 100 amp hour 12v batteries from temu...

So a coworker has a 4Ah ryobi battery. Charger won't accept it and such. We assumed it was out of balance. Opened it up and every cell was at 4.08V If you put it in a tool sometimes it will work for a few seconds at full power and then die. Any ideas?

Ok so I am setting up an off grid system. My solar string VoC (491Vdc) is close to my inverter's max of 500V. While I am 90% I can't ever hit that even in winter due the location of the panels and shading I would like to put in some way of monitoring and shutting down the output of the solar...

So have a house that I am trying to fix up. It has no power atm. I have a couple ebike batteries I was planning to use for an ebike conversion but never did. 1 is 48v and 1 is 52v. like 17-20AH each. Are there any cheap 48v inverters? Eventually the plan is to put some rackmount batteries and a...