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You see a lot of guides that you can access online that give you an average amount of productive sunlight hours for solar power generation for your geographic location and time of year. They are handy but they do not tell the whole story. This came to me as I was enjoying my morning coffee out...

Although there does not seem to be a consensus on what the dividing line is at it seems that low voltage are the typical panels for many of us. With the panels Voc being in the 20-40Voc range. Higher Voc panels have been mostly used in grid tie setups. Many of these are 60Voc and higher. I was...

As I was looking through various offerings of AIO's I happened to see that SRNE has a 3300w 24vDC at 120vAC model with much higher PV specs than my EAsun 3kw (SRNE white box) model has. It can take up to 500Voc PV, charge at 80a versus the 100Voc, 60a charge of my model. It can be found on...

Looking back over the 5-6 years of mucking around with Solar my best guess of how much I have spent is ~$7500. It is now at the point I save about $25-30 per month on my electrical Bill. Doing the math I only have to live another 25 years to pay for all of it. Not exactly a quick return. However...

https://fayar.craigslist.org/mat/d/farmington-solar-panels-140-kw-usa-made/7551246164.html If it had less than 25 panel minimum I probably would be contacting them for some myself. But it is not a bad deal for almost new (6-8 years old) commercial panels. They seem to be 145w with a Voc of 79.6v

I was looking at solar panel prices on Ebay and I happened to notice several new 200w Mono and even 300w panels for RV that seemed like a good buy with free shipping even. However when I looked for the size of the panels I noticed something wrong. Ones from a company named Tatooda (a few other...

I am thinking of creating a common bus bar battery parallel setup. What I am thinking of doing is wiring two batteries in parallel with short equal size cables between and from them a set of output cables to terminal blocks with the positive to battery 1 and negative to battery 2. There will be...

Understood that higher voltage reduces amperage at the same watts. 5amps at 20v=100 watts ~ 1amp at 100v=100 watts .Also understood that higher voltage suffers less loss for a given size of conductor which allows for longer runs. Thus for transmission the higher the voltage better. However...

Happened to spot on Amazon these LF AIO units on a special $100 off which makes the 120vAC 3500w unit $575 and the 240v/120v 5000w unit $1099. Nice looking specs for each, 1900w panel 150Voc on the 3500w AIO,and 4200w 150Voc on the 5000w AIO (not sure about the panel max wattage claimed since it...

In my ongoing search for the perfect home solar off grid, but grid assist (b/u), setup I happened to run onto ATO inverter chargers. The 3000w/24vDC model (https://www.inverter.com/3000-watt-off-grid-solar-inverter) caught my eye as interesting possibility. Its operating manual...

What I am attempting to do is to shut off a mobile inverter at my adjustable battery low voltage point rather than the inverters factory set limit. I see that I can buy a DC Digital Low protection switch on Amazon that would work with a DC control AC relay to shut off a AC device from the...

Just got in my EAsun 80 amp SCC from China today. I got it off Aliexpress for $132 with $12 off. It took about 2 weeks to arrive. I am going to use it to replace a MakeSkyBlue 30a MPPT that I am using for my second PV array feeding my battery bank. I presently have 4- 200w panels in a 2S2P...

I have not put much thought into these setups since I have not needed to supply 240vAC in a split phase arrangement. With a LF (Low Frequency) style inverter you have a transformer on the output that you use a center tap to give you the normal US grid style of 240vAC/120vAC where you have two...

Benchmark 2- NewPowa 100W 12vdc RV solar panels. A couple months back I picked up 2 -100 watt Mono solar panels from NewPowa off of Ebay. I was not paying much attention to any differences between my old Poly panels and these news Mono ones until they arrived and I got ready to install them...

I was perusing Aliexpress and spotted quite a few listings for flexible solar panels with rather incredible watt ratings (300 watts for one folding panel). The specifications for these were rather vague as to things like VOC or Vmp, they mostly just claim to be 12v chargers. Some of these are...

I have been using the din rail single phase energy monitors off my 120vAC output from AIO's. Pretty handy devices to glace at to see how loading is changing. I recently picked up a split phase 120/240vAC inverter that I will be installing and I want something similar for it but at first all I...

I see a few SCC that can feed two different battery banks but that is not what I am looking for. Like some All in ones (AIO) that now have 2 MPPT inputs it made me wonder if anyone is manufacturing a SCC that has this same idea. Yes you can buy two separate SCC but than you have two boxes you...

Tried searching but was unable to find exactly what was standard definition. In several posts mentioning wiring panels in series and parallel people will use something like 5S2P to signify how their panels are setup. What exactly does that signify? I am sure that S is series and P is parallel...

My system. 6-100w panels in 2S3P EAsun 3kw hybrid inverter (iSolar MLV 3KW-U) 2 -12vDC 100ah AGM batteries in series for 24vDC Loads are 12cuft upright freezer at about 70w running (day total is about 1.3kwh) Computer and LTE router at around 50w max. (I figure about 300wh a day since it gets...

Given the fact that solar power is only available during the day (and not even always then because of sun position, clouds, shading and other factors). Also given the fact that batteries as storage are limited due to state of charge and total capacity. Off grid hybrid inverters need to account...

Looking around for a decent, but not horribly expensive, stand alone (120vAC powered) battery charger to charge lithium batteries. Most of the ones I am finding are rather dubious Chinese made units that mention lithium batteries (amongst all other battery types) but seem to be all things to all...

I received a busted glass 200w solar panel yesterday that the Seller is going to replace with new. He is not requiring me to return the broken one and it got me thinking of if a shattered glass solar panel has any utility or is repairable. After some Internet Search I see that several places...

Just got in a new PowMr 3KW (SRNE) AIO on Friday this week. Basically identical to my EAsun 3kw unit it will replace but it allows up to a 450Voc versus the old 100Voc and 80a charge vs 60a. Reading through the manual I see several additional settings parameters most of which concern battery...

I happened to be looking about at various AIO's hoping to find a bit more power than my present 24vDC 3kW 120vAC units without jumping to 48vDC. Not anything US standard available but I did see a 4.2VA (3.8kW) unit model really dirt cheap ($286) ISolar-SMH-II-4.2KW that got me thinking about...

This not really a complaint but not finding a Forum usage area to ask my question. When I use the Forums "Insert image" tool I always end up with a full size image. I can select thumbnail in the popup image that comes along in the editor but that just adds a thumbnail below the full image size...

I have been using a old 12vDC 24w Auto trouble light that has a couple of alligator clips to do my pre-charges (image below). It works but is not elegant. So what I am thinking of is a hard wired around the battery disconnect breaker lamp/socket with On/Off button to handle the task. If someone...

Looking at din rail ATS's (Automatic Transfer switch) over on Aliexpress that mainly are used between utility and generator I come upon some that are designed to be used with solar inverter as the preferred power source. Rather nifty idea if they are at all reliable. Has anyone used one of these...

With all the adoption of LiFePO4 batteries for solar it got me thinking of what do you do with the old worn out or failed battery? With LA (Lead acid) there is no shortage of places you can turn them in (some will even pay you for the lead) but I am not aware of a recycling program for LiFePO4...

One of the setting for my EAsun inverter is Battery boost charge time with 120 minutes as default. I am trying to figure if this is a good setting for Lithium battery or if I should increase or decrease it?

Perhaps I am seeing something that is not there. I researched whether LiFePO4 batteries had a breakin period where they became more efficient (higher capacity) after a few cycles and everything I found indicated that does not happen. Yet when I added additional batteries to my system they seem...