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.1 In % on that capacity NO . 2 No, it can not. When does the ir change? Simple: over time with age degradation. Side note what applies for all li chem cells, the have there own life span, used or unused! Ir will rise quicker when you use the cell. Ir will rise faster when abuse. If you have a...

Yes, i totally agree. The Czech, Polish, Bulgarian and ect people from the Slavic corner, most of them have difficulties to speak or write English: Due to two reasons, English is/was not mandatory at schools, Russian was. And due to there own language (writing and pronunciation) it is very...

Professional insulator here: Buy 4 or 5 inch thick xps closed foam sheets, better if the wallet is allowing it--->go for 8 inch. cut the sheets lengthwise in squire blocks, if your sheets are 4 inch thick make your cuts 6 inch wide. Take a long wood drill bit and drill two holes, the center of...

From my experience it would be better to keep it at one single bms system. If one of many bms will fail, the rest will follow shortly, auwa that was a 10kv spark in the wallet. Lets say every bms can handle 200a and you have a surge of 205a 3 seconds, the weakest one will give up. All the...

The more a cell is (ab)used the higher the ir is going to be, always check ir charts before buying, if your cells arrive with a higher ir than fabric advised ir---> then the cells are used or very old(age degeneration) return them immediately, ask no questions. With every cycle a cells has done...

Thanks for all your input, it is really appreciated, just like every one elses input..... Long way from being done the correct way. But with you guys....i will have a dream system...learn me as much as you can so i can hopefully help others..... Again sorry for my english, it is not my native...

What is your source of water? It would be advisable to start filtering from 22um than to 5 then to 3. For strong polluted water or the risk of Bactria or viruses you could go to 0.8 For disinfection you could use uvc b and c, but ozone or almagaan would be a better choose, they will only burn...

I hope he will not forget the bms123 smart...I believe this is a winner for bigger systems for a very decent price. Best

@hammick, Yes you will need a bms. If you need a balancer(active or passive) then it would be wise to check the health of your cells or manually connect in parallel balance them. A balancer is a welcome device, yes, but it must not run/work much. My two cents. Best Igor

My vision/thoughts on/about the lifepo4 cells from China(btw i dont think bad of them! and i dont want to speak negative about them!) If a cell is unused lets take a 100ah cell no matter what chemestry. It has a left over of 100ah: rated new unused. If a used cell test for example 97ah from the...

I will look for those posts. But it is not only one vendor. I make mistakes also, and yes it costed me some good cells. Thank you for pointing out. With best regards.

Bingo, and this is why my house is idly for this....we come home and charge the ev's and start electric cooking...... The best roof is at 14:00 to 18:00. In summer time 15:00 to 19:00 This is also the roof i have the most room to place panels. Considering the time when we are stil at work and...

No need to tear down, dehumidifier will do the trick....7 days below 50% rh is enough and vacuum, BUT...sleep somewhere else, your berating out is what the feed on. Make sure that in every space there is no chance for moister to accumulate, seek for cold spots in your insulation-----> condense...

Insulation can be very cheap or really expensive, it all depends on how much you want to save on your heating bill. Also very important noise reduction and air closed. I insulated my house with 3 layers. Inner layer: rockwool 3 inch, for noise reduction and more stable temperature. layer in...

btw Concrete will harden no matter what, except below -7c It also depends on the chemistry and composition of the concrete it self. In general the more time it needs to set the harder it gets. For your container house a "b rate class c" will be more then enough. Sorry to hear about youre...

https://www.alibaba.com/product-detail/NEW-Stud-Design-CATL-lifpeo4-310ah_1600210291964.html?spm=a2700.wholesale.0.0.44d5aeffZsMnY0 1450 euro for 48v 310ah....with no tax?!?!?!? to the EU....to cheap to be true Yes i will send them a email. Thank you Arthur.

Class t was crossing my mind aswel, this one was advised to me from a store around here(no ali junk), more people tend to use this one according to them. Agree, the arc is something to take in serious consideration. I am waiting on some new breakers 125A fast dc, so i can switch it of and on...

HISTORY: my mother drinks the same wine as my brother and his wife, yes we bought that wine also if we ran out..... Is not much to start with, after several year the basement holds over 200 litres of wine that is aging from our own grapes. Yes we started 15 years ago with buying a lot of apples...

Quick replay.....outside insulation no matter what forn is cheaper AND better then inside insulation.... Btw tomorrow i will give proper replays due to time shortish, sorry.

Sorry i did not read all the pages, but damn, lucky nobody hurt...big F sake..lifepo is a pretty save chemical...what if it was li ion... Anyway i think those cells where good, but the bms was not... I still think the best bms is from batrium, and not the chinesium bmsses, sorry. We all know...

@Gazoo and @ dzl, Thank you for your replays. I saw some advertisements on alibaba from a seller that stated in there specs that BLS was the manufacturer. Also one add from a seller EVE. If i go on Aliexpress the links BLS provided are cheap one page sites, and yes they have also different...

A yes, i will do, thanks for the tip With best regards Igor

easy and up to 255 cells

@Hedges Shit you made made me really laugh with this song... yes i am a below the river dutchie....born and raised(not rotjeknor but a true Brabander), cheers mate.... And thanks

My busbars are 300mm2 (*1,2A 360A rated) The fuse per pack is 100A 48v dc rated. The inverter has a 300A 48v dc rated fuse. Those green yellow cables are 25mm2 So far so good? The cables on the inverter are 3 times 16mm2, yes those are way to thin, when the inverter is going in full...

My two cents worth of thought: Did not read all the posts, but next month i start mine hot water project, yes during winter time. I will connect 2 solar panels 32v @ 12a direct to a temperature controls to a 48v heating element. With a well insulated barrel with pir sheets, rd value of 8. The...

Lot of "Dutchies" around here, i will feel right at home....Located nearby Enkhuizen in Noord Holland. To bad i was a week to late with the meeting. With best regards Igor

I did not see "May 2021" anywhere, only date of production(received for testing)....feb 2021.... What you people dont get about second hand lifepo cells, even from alibaba.... You really think they are new....come on...grade a is the best, but they are NOT NEW

Supplemental: Does not support parallel or 380v only single phase and is stand alone. Does not have the choose batts first, does not have a prechoice switch..... Ac first, second with pv extra it will power your needs then 3th it will use your cells if there is no ac...6kwh ups... But it is a...

@danielfp248 Still biting the bullet for zn-br cells? Well i can not leave it behind me also, it keeps on rambling in my mind........on and on. When i finished rebuilding my house, i also will give it another go. Thank you VERY much for your efforts, very helpful and constructive ideas! (we met...