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With regard to busbars and concern about expansion of cells being restricted, consider this: Make your busbars from copper foil. Folding a 38 gauge foil (available on Amazon) in half 5, or 6 times results in a "bar" 3/16 or 3/8 inches thick (it'll actually be a tad thicker), with 32 or 64...

For those of you using Blocking Diodes you know that there is a constant power loss from them. Unlike Bypass Diodes, Blocking Diodes are under most circumstance forward biased, which means they introduce a .4 volt drop in each circuit. If you are pumping a lot of amps through your panels then...

Was confused at first. Here in Canada "Lest We Forget" is used on Remembrance Day, November 11.

And the answer is: The diodes in the panels themselves are bypass diodes. These allow panels in series to bypass a panel that might be in shade. The diodes in the combiner box are blocking diodes. These ensure that power can't flow the wrong way into the cells. To give an example with totally...

I’ve got the MPP 2.4 kWh model. My thoughts and observations: Positives you’ll require less space for the AIO (All-In-One); wiring is less complex; programming is mostly in one place; easier monitoring through a single interface. Negatives If it breaks you lose a number of your power elements...

I think there is some kind of subconscious reasoning going on. Coronavirus -> Corona Beer -> Mexico -> Montezuma's Revenge - > TP

All modern panels have bypass diodes. They’re in the junction box on the back of the panel. There will be one less than the number of cell strings on the panel. Often they’re undersized on the cheaper panels and will eventually burn out. I inspected and tested them all on the used panels I...

Absolute minimum for these is 2.0 V, although Will Prowse suggests a bottom balance level of 2.9V, which is the equivalent of about 10% state of charge. These batteries don't self-discharge much so you should be okay for some time. Check out Will's video on bottom balancing these. This and...

Oh well, just looked at the data sheet more closely. Maximum reverse voltage is 30. Not going to fly for anyone using solar as we tend to like to get the voltage up, and Amps down for transfer to the SCC. My voltage is going to be in the 60volt range which clearly is more than this device is...

Sigh. See no poly, means you lost your parrot.

If it was me I would just replace it.

I'd rather not have your toilet paper after you're finished with it.

I bought two of the same batteries, assuming you are talking about the Battery Hookup deal. I’m waiting on delivery of a number of items, including an All-in-One charger/inverter, a battery monitor, high watt resistors for balancing cells, and molex connectors to use the connector on each...

My comments: Temperature compensation is not required, but I see you don't have this option. If there is an option turn it off. I would set LowVolRev to 12.4V. With your UndVolWrn of 12,0V this will be equivalent to 9% SOC. You'll start to get warnings when under load at 9%. Your LowVoldDsc will...

The other method I saw was to use clear car wrap to cover the glass, including pulling it over the frame to ensure it seals the edge around the glass. As long as there are no sharp glass edges that would likely work as well. It's on YouTube.

I ran into this blog from a person who improved his fridge efficiency. Thought some of you might be interested.

Typically made from tempered glass. If you are comfortable parking your car under the trees then your panels should be fine.

The whole concept of any subatomic particle as an actual object is just a simplification. Electrons don't whiz around an atom like planets. They're everywhere all at once, just with a very high probability of being within their valence band (energy state). That's how electrons manage to tunnel...

A yard by any other name. Plus 3 and a bit inches. I bet that extra 30 inches would play hell with football statistics.

Good point. You just saved me some money. Now feeling mind numbingly stupid.

I was planning on taking a copper pipe, splitting, cutting to length and wrapping around them until I got a thickness I could put a standard auto battery clamp on.

Never mind, I found it. For anyone who might not know the designation, it is xh 2.54 8s.

The main issue I have with unions, and something I think should be enshrined in law, is that merit should take precedent over or at least have equal weight with seniority, and those at the bottom 10% of the merit ranking should not have their jobs protected. That would certainly light a fire...

I purchased two of these batteries, and thought I would do the following as part of my balancing. The diagram below shows the two batteries as they would be wired (black) in parallel. The inter-cell lines (thin black) are already there as some pretty significant bus bars. I would bottom...

Here is my thinking on that question. Two batteries in series can get out of balance with each other, just as the series cells within each battery would get out of balance if not for a BMS. If one of the batteries should die for some reason, you no longer have 24volts. With two batteries there...

In my quest for information on working with used solar panels I've come across a number of useful YouTube videos that may be of use to some of you. Hope you find these useful and educational. Repairing a lightning struck panel, specifically replacing the fried junction box. Fixing solar panel...

Alte store has a great series of youtube videos on combing differing panels in parallel and series.

Actually the Bernoulli effect doesn't require a curved wing. A flat surface will generate lift if the angle of attack is correct. That's why the cheap balsa wood gliders of my youth would fly despite having a flat wing. As soon as their is a positive angle of attach the wind going over the top...

Um, I think those statements are a long complex oxymoron. "...so I don't have to worry..." "Hopefully I'm not underestimating..." I think you just convinced yourself you are going to have to do the calculation.