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I don't understand the statement or even recommendations that buying a server rack battery is about the same price as building your own DIY battery. With the long cycle life of Lifepo4, I think it ultimately comes down to the supporting components that make the difference. As long as you...

I have two separate 5000 watt inverters. They are not in parallel, and cannot be put in parallel, as their sine waves are out of phase. They both feed separate electrical panels, and both have the neutral/ground bridged. Both grounds are then tied to the same ground rod. Everything is...

My charge controllers are 2x: https://www.amazon.com/dp/B07429RK43/ I based my automation off of the values read from the charge controller after modifying this software: https://github.com/toggio/PhpEpsolarTracer Over the years I've created a handful of bash scripts that run on my RasberryPI...

I have a Solar Panel in one of my array's. It's only putting out 2/3's of the rated voltage. The Panel's are in a 4s2p array, so with the decreased voltage, during the bulk of the day the entire string of the array does not contribute any power. I opened the Junction box, but do not see any...

When testing, all my outlets report Open Ground. My inverter is properly grounded to a grounding rod outside, but I believe the reason for the Open Ground, is because inside my inverter the Ground & Neutral wires are not bonded. I'm wondering if there is a shock risk, if there was ever a short...

I started upgrading my hardware, and switched over to Growatt recently. I started with 2 x SPF 3000TL LVM048-P from Signature Solar. At first I put them in Single Phase Parallel, for 6000 watts at 120v and they worked great. I was extremly happy with Signature Solar's email & phone support...

I have several BYD battery packs. Cell number 8 on one of the packs has always been out of balance. If I disconnect the battery pack, is it safe to charge Cell Number 8 directly from a CV CA charger. I'd set the target voltage to the voltage of the other cells in the pack. I'm not able to...

I might be able to purchase 42 of these CALB cells They're advertised as LifePO4 200ah. They're not new, they state they're 3 years old, always had a BMS were cycled regularly looks like they could have been from an EV. I'm still waiting on a responce. They're asking $50 each. Hoping they...

Due to shading in the winter, I have12 panels I move from one position in the yard to another position in the yard which as the sun get's lower does not get shade. These panels are simply resting 2x4's on top of two square cinder blocks. I was thinking. If i purchased aluminum angle and...

I have 4 SPF 3000TL LVM-48P inverters. I've had phase balancing issues with these since day one, but only with 2 inverters on one leg and two inverters on the other. I'd see lights flickering, the inverters resetting due to voltage fluctuation etc. Weirdest part is I gave up on having one...

Has anyone else ever purchased an obvious scam battery just to see what you would get? For $100 I kinda want to see what I would actually get delivered. If I pay with my credit card, I'm pretty sure I could easily get my money back...

I'm planning on building another ground mount, but this one I want to put up about 10 feet high. I see a lot of top of pole mounts, that require you to supply your own 2 inch pole. I've been to hope depot, and lowes, and they don't sell much in terms of metal poles. You have your pluming...

In February I purchased one of those 24v 200ah BYD lifepo4 batteries and it's been working great. I get about 150ah out of it. I recently found a deal on Craigslist for some sonata 5300 batteries at $1 each, which are basically just two 18650's in parallel. I ended up buying 420 of them, and...

I did a dumb thing and purchased 32 (8x 4 packs) of these Sinopoly Cells: https://www.aliexpress.com/item/3256803821900092.html?spm=a2g0o.order_list.0.0.4cc11802vnOvVd&gatewayAdapt=4itemAdapt They looked like a great deal, and got shipped to me really fast ~8 days. One big problem, they were...

For years I've been running my setup using Xantrex 808-0915 automatic transfer switches. I have a single floor Ranch home, so most of my wiring is in my basement and very easily accessible. Instead of creating a critical loads panel, I instead created an off grid panel, and installed these...

Has anyone found a DC ammeter that can be queried via a PC? My current solution is pointing a webcam at two cheap amazon ammeters. https://www.amazon.com/gp/product/B07B4CWKRJ I currently use this software to connect to my Solar Charge Controller: https://github.com/toggio/PhpEpsolarTracer...

The UPS I run a lot of my Solar Stuff off of, so I can switch between grid and solar without interruption died. I have an old but still perfectly working 24v inverter lying around collecting dust., I had an idea, to purchase one of the switching power supplies, and run the inverter off...

I've been using charge controllers that do not have a float setting, on my 24v system I had the voltage set to 28.8. In the past this hasn't really been an issue because I've never had enough solar to fully charge the battery bank. I recently added panels, and with the summer approaching...

I currently have 4 of these units When I setup 2 totally separate systems like this everything works perfectly no light flickering no imbalances However, Once I reconfigure them in one large system like below, I see really bad light flickering, and if the load imbalance between phases goes...

I had to take the cover off my Inverter for another reason, when I noticed this middle capacitor. The Inverter is working just fine, but does anybody know if this is something I should be worried about?