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your post is not at all surprising and is the typical procedure with Renogy wear you down with BS until you give up. We had a customer with a brand new Renogy AGM that could only deliver 72% of its rated capacity. Renogy never did warranty his battery.

A car is worth nothing with no manufacturer. Ask Saab owners how their values held up. Hell my brother pre ordered a Ford Lightning it is the biggest POS on the planet and the Ford dealers won’t even take it on trade towards a diesel F series… It’s worthless…

Charge Your KV batts at what they recommend and they will last. KV problems are not the batteries it is a management problem..

Absolute joke of a pump. Ours never worked right, then leaked we tossed it and went with legit well pump equipment.. This pump is 120V and works perfectly

I ordered my Winston 400Ah cells in 2009 they shipped identically. Far more robust than cardboard...

I have purchased a lot of cells from 18650. They have never shipped me one that did not meet capacity. I fully test each cell for IR and capacity.

What are you charging this with brand model & amperage?

That is a very old article on the old site. https://marinehowto.com/battery-banks-over-current-protection/

In a marine application the required AIC is 20,000A.

As a US Sterling dealer/distributor we would never, ever advise the Sterling A2B chargers for LFP. You are far better off to convert the alt to external regulation then use a quality external regulator such as a Balmar 618, Wakespeed WS500 or ARCO ZEUS.. The only time we ever sold A2B’s was when...

They are now owned by Winnebago…

If by design people you mean the guy who peels a sticker and puts it on another manufacturers crap…..

The Honda EU 2k is an inverter generator not traditional.

The intent was not to go cheapI gladly would have bought a Victron but Rich solar was insistent that this was a true 2k output continuous with a 4k surge... I am well aware if inrush but when the owners el cheap 2kW Harbor Freight MSW inverter runs the saw and his EU2000 runs it, even when on...

We just had a Rich Solar 2kW “industrial pure sine” inverter fail in 13 months. Dealing with Rich Solar has been better than Renogy by a mile but still absolutely infuriating. The inverter to bank is all 4/0 Ancor marine wire and total circuit length is 4.5 feet. The bank is Kilovault LFP. When...

I know Brads Powerqueen mini was cutting off early. I ordered one for a customer and it was cutting charge at a pack voltage of 13.81V indicating very imbalanced cells. I tried every trick in the book short of cutting the case open and 6 months later the battery is still cutting charge at a...

So, yesterday my brother and I made a trip to the dump to get rid of some scrap metal.. in front of the metal dumpster was this! it will hold/house out LFP batts for the homestead.. What a score!

Our property is off-grid so, I decided up-front not to care about bottom end SoC. In a marine application no, but on the homested no big deal. For example last weekend I changed the fuel filter on the tractor. I was just test driving it in the driveway and it ran fine, I got side tracked, and...

Not just Chins, I have a Power Queen that cuts off charging at just 13.8V. Power Queen wanted me to order a second battery pay for it then ship the bad one back. problem is they flat out would not guarantee I would not have the same problem. I have tried every trick in the book but the battery...

please don’t base anything on these battery testers they are junk! even the highest quality industry gold standard testers such as Midtronics are garbage. CCA has zero correlation to Ah capacity…. https://marinehowto.com/are-battery-conductance-testers-worth-it/

Once they were purchased by Sensata everything went in the shitter. They used to be great and very reliable.

Xantrex in the 90’s & early 2000’s. We took on Victron & Magnum out of spite from how shitty Xantrex treated it’s dealers & customers.

As the owner of a marine electrical business I go as far back as you can go with Victron and began with them in the BMV -501 in the days (I believe this was their first product) well before they pulled the plug on TBS (Their original battery monIgor manufacturer (same one Xantrex used for the...

here in the Northeast the 29DC is made by East Penn and they are really a G-31 with 105Ah (East Penn PN DC31DT) In many parts of the country the 29DC is a crap JCI battery That’s barely worth the scrap lead price. If it says made in Mexico you got the JCI battery. If you got the East Penn...

where is positive volt sense wired? Where is reg B- wired (this is your neg side volt sense.. 99% of installers F this part up….

that’s a misprint by Walmart's Marketing Department. I got a good chuckle out of it when I saw it…

We would need to know the Peukert value for that battery to calculate that..

This article is about programming a battery monitor but it has instructions for how to do a 20h capacity test, Making Your Battery Monitor More Accurate .

I think you will be happy with it...

My brother and I own a large off grid property and over the years we have had a slew of generators. Many of them suck donkey dong. for example a neighbor could not get his Ryobi 2300W to start so he added it to our collection. In March I cleaned the carb from ethanol poisoning and it ran great...

The stream that runs downing side of our off-grid property in Maine is busting at the seams. The garden is done for the season from too much water....

Victron sizes this way due to DC ripple and to help the inverter live a longest life possible.

They are a horrible company. I bought one of their metal battery boxes for 280Ah cells on Amazon. After a month, (it was supposed to be at my door in ten days), they still had not shipped it. Eel then sent me a note saying it needed to go by ship and I should have it in three months. I cancelled...

The trick here is those graphs are not derived from testing but rather a mathematical assumption. As one of the first marine electrical businesses in the country offering capacity testing of AGM & Gel batteries I can assure you going to 80% DoD murders AGM batteries including Odyssey &...

My 400Ah Winston cells turned 14 on May 9th.. Zero complaints