Casualobserver's Posts
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Valto:I am sorry but that is BS. I am not a pro but in my quest to build a solar system I have had to watch a lot of YouTube videos, read a lot of solar forums and followed this section on Nairaland as it is clear there is a lot of cowboys, quackery, ignorance, misinformation and “anyhowness” in the Nigerian solar space, this is even before those who just want your money and will tell you anything to get it. I have been to a well known solar installer with its own OEM branded axpert products that couldn’t tell me the brand of lifepo4 cells in the lithium batteries they sell. Cells are either Certified Automotive grade or they are rejected cells. Any rejected cell is a grade B cell. Once you are dealing with rejected cells (which could be rejected for a number of reasons) you are on your own. They may be cells good enough for home storage but not for the automotive demands or they may be outright bad cells. 1. QR code means nothing as they are faked 2. Eve started stamping their Rejected cells with “B” grade on the QR code but Chinese resellers have found a way to “remove” the “B” stamp. B does not mean a cell is bad, however the problem with B is that it can be good or it can be bad. Most A cells on the market are B cells, so they could be good or they could be bad. 3. That a cell tests ok for capacity does not mean it is a good cell. Many cells will test ok for capacity but will drop voltage under load. Just like a bad lead acid battery, it depends on the load on it. I will post a video below highlighting this. 4. Your battery is only as good as the worst cell in your pack. If there is one bad cell it will bring the whole battery down. 5. There is nothing wrong with the better “B” grade cells for ESS (which people falsely call A- or outrightly sell as “A” but you need the r Test reports so you know what you are dealing with or test them individually and match them for voltage, capacity and internal resistance. Otherwise the cells start to deviate as you charge aand discharge due to different internal resistances of the cells and before you know it the individual cell voltages go out of whack, your BMS is shutting off charging or discharging because one cell is hitting low or high cut off voltage before the others and you are not getting the available capacity you have despite having the capacity. Cells with different internal resistance will discharge at different rates to each other. So you see it is not just about putting cells together with the same capacity. We need to know what the internal resistance of the cells put together are…hence the need for matching. 6. What you need for any cell is the manufacturers test report. Do not buy a cell from anyone without a manufacturers test report. You need that to match the cells in a pack. QR code even if legit is meaningless on It’s own. what you need to assemble a battery is consistency/matching of the cells so the cells charge and discharge in unison. 7. When you see a battery with a recommended continuous charge/discharge rate of less than .5c it is a sign the battery contains poor grade cells. The popular lithium batteries beginning with “F” is an example of this. If you check the specs of reputable batteries like pylontech or BYD. You will see they are .5c continuous. There is a reason they cost more. Also a sign of poor grade cells is when a battery has its cut off voltages limited in the BMS or you are restricted to 80% capacity to keep the cells in the flat range where the voltages will not diverge due to inconsistent cells. 8. Again the overwhelming majority of these batteries are not certified grade A but some can be used so long as they are matched for capacity and internal resistance and for peace of mind you need the manufacturers test report. QR code means nothing when putting cells together. I was watching a YouTube video only yesterday of a guy in the US who actually makes and sells batteries and he says even from his reliable Chinese cell supplier, sometimes 4 out of 16 cells will be bad cells and if you are buying from these suppliers buy 20 if you need 16. Unfortunately I can’t find the video. 9. If a cell is not certified automotive grade, it is a “B” cell. If it is certified automotive grade, it will have a manufacturers test report. There are good “B” cell, many reputable battery manufacturers assemble good reliable batteries with “b” cells after carefully matching them and many resellers would the world a lot of good if they just say these are good “b” cells with the matching documentation and test reports. The minute someone is telling me a cell is “A” grade A- or whatever and has no test report, he is either ignorant or lying to me. Every cell whether A or B has a test report. If it has no test report you have to ask why is your reseller not willing to show you the test report. Assume any cell without a test report is a B cell because if you have a true “a” grade cell you won’t need to ask before you are shown. Videos below are from sunfunkits in the US. Load (not capacity) testing videos https://www.youtube.com/watch?v=XKxwMW900Jw?si=rlJoETJ9N8k4ow2_ https://www.youtube.com/watch?v=KD-av4cTL-Q?si=FJgkfAr5fKrR6zSb The picture below is an example of what the test results of a battery with matched cells should look like.
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Returnee Japas AKA japada loading……. You will soon see some claiming they are gay to avoid deportation. |
When your case is so baseless, it only takes the Supreme Court 3 days. |
brightk:You clearly did not understand what I said. What I said is that I prefer a hybrid so it powers the load 1st and then charges the batteries with the excess and only draws from the battery when the solar power is less than the load or at night which is what you have described above. What I said is that if I decide to use a SCC to charge the batteries in order to allow for Temperature compensation either in addition to a hybrid or in conjunction with an inverter charger, you are drawing power directly from the batteries or wasting solar power. It’s not a very efficient way of doing things because it means having to dedicate a set of solar panels for daytime consumption via the hybrid and another set for the SCC to ensure temperature compensated charge of the batteries. In addition you can’t totally stop charging by the hybrid so even if you limit the current to the minimum it will still send a higher than appropriate charge voltage to the battery. One might as well stump up the money for a Deye with BTS or get lithium. In any event should their be a need to charge the batteries via the hybrid either on cloudy days or at night we are still back to the original problem that all these hybrids on the market Growatt, axpert, felicity etc do not do temperature compensated lead acid charging and will degrade batteries in the long (maybe even short) run. |
kristien4:This is the problem I have with tubular batteries. The problem is that when charging a flooded lead acid battery, you are supposed to temperature compensate. For instance you are supposed to reduce the charging voltage by .005v for every cell for every 1 degree increase in temperature above 25degrees. If you have a 48v system that is 4 batteries x 6 cells per battery I.e .005 x 4 x 6 or .12v per degree above 25. Tubular batteries should not be indoors but even indoor temperature could easily be 30c. If they are placed outside the temperature could easily be 39c and often 35c. At 35 degrees you are sending a charge voltage to your batteries that is 1.2 v above what it should be. That’s what you call overcharging and this degrades and kills lead batteries. That is what leads to the bubbling sound you are hearing. You are effectively equalizing your batteries all the time….and giving off gases. Bubbling should only happen during equalization. Equalization should only be done once a month a or once every 3 months. The problem is that most of the hybrid inverters on the market do not have BTS for temperature compensation. The only one I have seen is Deye and we all know deyes are expensive. The only way to properly charge your lead batteries is to use MPPT charge controllers as they tend to come with battery temperature sensors. The problem with charge controllers is that you are constantly pulling power from the batteries not directly from the panels with a hybrid. I would rather power directly from the panels and draw from batteries only when solar power is not enough or at night than constantly drawing power from and working the battery with a charge controller. This is the dilemma I am trying to solve myself before I pull the trigger. If I go lithium I don’t want to get any of these cheap lithium batteries like Felicity (1st hand reviews/ opinions are hard to find and the few about are spotty at best) and I don’t want to spend 1.5-6m on 8 tubular batteries that may not last because they are constantly being overcharged and over utilized. I t will be interesting to hear from the experts how they account for temperature compensation when they 8nstall tubular batteries.
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khalling2008:Tomorrow some people living in denial will come here saying our problems are our leaders. @politeactivist |
Wainey:I have no sympathy for importers. We are where we are because we export nothing and import everything. The fact that you are coming here asking people what to do shows you are not a businessman at heart or you have a sense of entitlement. True Business men adapt to the business environment. If importing becomes a problem then find something else you can source locally and sell locally or better still export. |
PoliteActivist:Guy talk with sense. Are there more Nigerians than South Africans in South Africa? Is this not the same South Africa where they are driving Nigerians away? You are just deflecting because you don’t want to face the truth. EOD |
PoliteActivist:which country are you talking about where Nigerians have overwhelmed them such that Nigerians are now the majority? Oga take a look in the mirror and confront the ugly reality. |
PoliteActivist:that is the problem...you any the Nigerian masses refuse to take responsibility and instead prefer to shift the blame because it prevents you from confronting the ugly reality...which is that we are largely a selfish corrupt untrustworthy wicked people. Every country has good eggs and bad eggs. The issue is how many more bad eggs than good eggs does your society contain. When you say "hello" to the average Nigerian the next thing, he is looking to scam or get money from you. We know even amongst ourselves we cant be trusted. lets stop pretending abeg! |
PoliteActivist:It is not by accident that we are known abroad as fraudsters and theives. Na only us dey this world? Why always Nigerians? We are naturally crooked people. Until Nigerians take responsibility for their role in where we have gotten oitlrselves, nothing will change. No good leader can save a damaged populace. One of the reasons we have bad leaders is that the few good people in society have left the governance space for the charlatans. Why? Because it is the same Nigerian masses that frustrate their efforts. Societies function because there are more good people than bad. In Nigeria, there are more bad than good. |
this man don become wailer in chief. He should warm up because he go wail tire!!!! He will spend the rest of his life wailing.....no presidency. |
PoliteActivist:and I am saying the leaders are no different from the followers. We all have the same mindset. The followers will do the same thing if they are in power. A thief is a thief whether he has the opportunity to steal or not, a thief is a thief whether he is a small thief or a big thief. The only difference between the masses and the leaders is the opportunity for grand larceny is not open to the masses. Remmember the president who said he had no shoes? A man without shoes can be classified as poor or started life poor. This is a man whose career was as a lecturer. What is the source of the wealth he and his wife have today? Remember this was the man who was once poor and couldnt afford shoes. |
opamoses1:Claimed to be Abiola's "son" and many of the younger ones may not know this but as soon as Abiola was jailed, he started using his magazine to launder the image of the Abachas. I can go on and on. Claimed to be a "Progressive" but he is always jumping from one party to another. This is the same man who was trying to launder the image of Diezanni. The man has no principles and no scrupples. His whole existence is sycophancy. A man who contested for presidency left his house to the polling unit to vote with his driver and his wife and only got one vote....even his wife did not vote for him because she knows the kind of imbecil3 he is. We know all this is to milk Atiku's money. Alatenuje!! |
PoliteActivist:because they have the same makeup and mindset of the typical Nigerian. the only thing differentiating them from the regular Nigerian is they have access to commit bigger thefts. The one thing I have discovered about Nigeria is that the masses are even more wicked people...they just dont have the opportunity. Sometimes I wonder if the reason public officials dont seem to care about the masses is because they understand the masses are equally wicked people. I hate to say it but the good amongst us are few!!! |
PoliteActivist:A foreigner reading your post would think these "public officials" are aliens not Nigerians and we the citizens are good upright people. Our problem are not public officials our problems are us. We are the ones who become public officials. It's not public officials that steall manhole covers, highway railings, railways tracks etc, its people like you and I. The other day I asked a LASTMA operative why he wasnt stoping the busdrivers that were blatantly driving against traffic, he told me they beat them up...as in the bus drivers beat the lastma officials if they (LASTMA) try to apprehend them. |
See as Rilwan Lukman tarnished his legacy. What was he looking for in his old age? |
Fhaze:if you were a smart student you would have realized that there is no way to survive on any less. There are no savings to be made, the n5000 cant even sustain you. Therefore, your only option is to find a part time job or side hustle to augment your income. |
IbeOkehie:oga I dont have time for back and forth with imb3cil3s. You claimed Nigeria's top 10 companies are headed by foreigners, i provided evidence you are a mor0n. I asked you to name 10 Nigerians that are at board level in the top companies in the UK or US, not CEO, just board level will do. I even gave you 600 companies to choose from. Until you can name them, I think you should stop disturbing me and others on the forum and go and bury your head in shame. |
Once you have a backup plan you are guaranteeing that your relationship will not succeed because you won’t put in your all. you will always not take that extra step because you know you have a back up. |
IbeOkehie:Your figures are from 2021, mine are up to date as at 2023. Your figures are highest earners but the subject was who occupies the position of CEO in the top 10 companies in Nigeria. Again your figures are only the top 5 earners from 2021 but your claim was no Nigerian is a ceo of a top 10 quoted company. The facts are clear, you are a quack. Now of all the Nigeria’s best brains that we have exported abroad name me just 10 that are directors of the top 600 companies in the UK or USA. I didn’t ask for CEO just director. There are officially 270,000 Nigerians in the UK and 390,000 in the USA. This does not include Nigerians who were born there and won’t be included in the figures. Out of 670,000 Japad Nigerians in the UK and USA and those who are American or Uk citizens, just name 10 who have acheived board level in a Ftse 100 or s&p500 company…….I am waiting. Note: Nigerians occupy CEO post In 9 out of 10 of the top 10 companies in Nigeria. I am not asking for CEO, just director or board member will do and you have 600 companies in the Uk and USA to choose from.
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Shikini:And the people of Alaba were seeing other markets being shut down and did not think to get their market in order? |
YoshihideSuga:Who are these Uk based Nigerian entrepreneurs? Nigerians in the Uk are employees. A Nigerian “business” in the Uk is nothing more than a barbershop, a Naija restaurant or a shop selling Nigerian foods like yam and snails. Indians, Chinese, polish and other immigrants get to the Uk and establish scalable large businesses. I. Over a generation of Nigerian settlers to the UK. Name a Nigerian business in the UKK making waves. It’s tells you our problem is not Nigeria because it is the same opportunities available to all these foreigners I. The Uk that are available to Nigerians. Even the Somalis who came after Nigerians have established themselves in the Uk as business owners. What are the Nigerians doing….doctor, It contractor (without hierarchy or status) or they are nurses Uber drivers and admin staff. That’s it as far as the Uk goes. Nigerians have no scalable businesses in the UK for the same reason we export nothing. We have nothing the world wants. Our contribution to the world are our skilled professionals and our natural resources. In the UK this translates to nothing but employee status. Our football players and music artistes are more influential and have more impact abroad than all our educated skilled professionals combined. The same reason our country is in a mess back home is the same reason we are nothing but a pool of skilled Labour when we go abroad. But for the fact that we have the Nigerian market to ourselves, there probably won’t be big Nigerian owned businesses in Nigeria. It’s time we started asking ourselves some tough questions. |
YoshihideSuga:Most of the people here talking have never been abroad talk less experienced living there. Those who have, only visited on holiday and holiday is different from being in the system. Just like Nigerians who come for Xmas have a different view of Nigeria from the Nigerian who lives in Nigeria. Many of the people wanting to japa are not foreign citizens. We who have foreign citizenship and didn’t have to go through the struggles of those without papers or citizenship ante telling you the realities. You are free to japa. What you see, you see. You won’t say you were not warned. |
IbeOkehie:CEOs of Nigeria’s top 10 companies 1 MTN. Karl Toriola. Nigerian 2. Dangote. Foreigner (previous it was a Nigerian Makoju) 3. BUA cement Yusuf Binji Nigerian 4.airtel Segun Ogunsanya. Nigerian 5. BUA foods. Ayo Abioye Nigerian 6. Nestle Nigeria. David Ifezuike. Nigerian 6. Zenith bank ebeneze Onyeagwu. Nigerian 8. Geregu PLC. Julius Owutuga. Nigerian 9. GT bank M Olusanya Nigerian 10 stanbic plc. Wole adeniyi. Nigerian You have just exemplified the problem with a lot of Nigerians. you don’t engage your brains and just talk without facts and the. You start to reinforce and believe the lies you tell yourselves. Someone who has never seen an airport will come to Nairaland and claim he has land in the US….nonsense!! Apart from CEOS, top management positions like directors, group heads, regional heads, area managers etc are all Nigerians. How many Nigerians abroad do you know who are directors, area managers, group heads etc etc? The problem with Nigerians are Nigerians themselves. How many Nigerians abroad especially the UK have businesses? If they do they have Nigerian restaurants and barbershops. They are all employees and low level employees without status.
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Hideki:You are the one missing the point. Nigeria is not a merit based society and I agree. That is why your contemporaries abroad may get on the ladder before you but they will only ever be able to climb a few steps on the ladder before they get stuck. In Nigeria the whole of the ladder is available to you once you get on the ladder. It doesn’t mean you will be able to but the opportunity to climb all the steps of the ladder only exists for you in Nigeria. The opportunities to climb the rest of the ladder does not exist abroad full stop. So my point is don’t spend too long abroad, use the opportunities abroad to get on the ladder that Nigeria may not present to you and then come back in time to climb the rest of the ladder. |
Adolfnigeria:You have a defeatist mindset. |
wrongnumber:Are you a nobody? Do you not have people you can call, who,care about you, who call you to events, who,know you in your community etc etc? Don’t you have societies you belong to formally or informally? That is what it means to be a somebody. Abroad no one gives a shit about you. You people are taking for granted the things you enjoy in Nigeria. Like they say you do t know the value u til you lose it. |
Adolfnigeria:The point is such doors are closed to you abroad…full stop! And those positions will go to those who are probably not as smart as you because of the vacuum you created by being abroad. There is a limit to how far you can go abroad by just doing your job. Nigeria is a member of WHO, Nigeria will nominate people andit won’t be the Nigerian doctor in the Uk. Nigeria is a member of IMF, Nigeria has positions to fill, they won’t be filled by Nigerian economists in the Uk. And so on. not all positions are DG, there are many Nigerians working for the IMF, WHO, World bank, UNICEF etc. there are many positions that countries are required to fill, Nigeria has its quota. Those positions will not go to the Nigerian abroad and your host country will. It put you forward against their indigenes. I listened to the screening of the new EFCC boss and I thought to myself are you telling me this man was Nigeria’s representative at bodies like interpol, sent by the Nigerian government to places like Harvard, our representative of world bodies like international money laundering committees etc amd the man’s English is one kind? Yes He is because people who are probably better qualified japad. There are Nigerian graduates who are policemen in the UK and the US. The UK or Us govt will never send them to Harvard or to represent the Uk or Us as their official representative on matters bordering of international money laundering etc. or elevate them or give them the sort of exposure Nigeria gave this man. |
Mindlog:How old are you how long have you worked there? It is not in your youth that these things will set in. It is when you start to see your contemporaries in Nigeria surpass you exponentially. Usually that will start in your 40s. Trust me you will get there. You are a doctor. In Nigeria the state commissioners for health, the minister for health, the medical director of all hospitals will always be a Nigerian. If Nigeria is nominating someone to WHO and other world bodies. It will always be a Nigerian. If the government of Nigeria is setting up a committee to outline national, state policy for health it will consist of Nigerian doctors. If the Nigerian government is nominating a representative to discuss high level health policy with other high level health officials, it will be a Nigerian. In the Uk, 99.9% it won’t be you. It will likely be a Brit or an Indian. So by being in the Uk you already have certain ceilings you will likely not rise above and some positions and exposure that will never come your way, despite the fact that yeah, you will make money and practice your profession….but only to a certain level. 90% of where we get to in life is opportunity. As a Nigerian abroad, you simply reduce your opportunities to get to the very top of your profession. Again you will be professionally and financially comfortable but there is a ceiling. There are doors that project one to the very top that exist in Nigeria that are closed by virtue of the fact that you are abroad. As a doctor you will be comfortable but you very unlikely to be involved in decision making, policy formulation, lasting societal impact working abroad than if you came back to Nigeria because the opportunities will not likely be available to you abroad. Most Nigerians abroad will be will never fulfill their potential or get to the very top because those doors are not open to you and at some point when you’ve achieved the financial comfort and practiced your profession, these things start to matter…especially when you start to see your contemporaries back home, whom you probably overtook in the early stages of your career, or who came back home in time achieving things that you now realize you won’t be able to. At that stage it is not about money or comfort. That is my point. |
Backpedal:Have you lived abroad? Simple question? If no then don’t speak on things you don’t understand, have not experienced and have enough humility to listen to those who have. Like I said I am a British born citizen, I don’t have to be in Nigeria, I was very well paidn the UK. Ivolountarily came back and it was tough returning but I will never go back. If I need a break from Nigeria, I have a passport that can take me to most countries without a visa. But I tell you when I go back to the Uk and see my friends many of whom have homes worth more than £1m, despite the problems in Nigeria I don’t don’t envy them. They all wish they can come back but they have been abroad for so long, they don’t know how to come back. Ma |
Mindlog:Like I said to the person above, you clearly don’t know what it means to be a somebody. Your problem is you think being a somebody is about finances. Every village, every street, every church, every what not in Nigeria , you are a somebody. Whether you are the hungry Mai guard, the Uber driver, the bank manager the struggling teacher, the doctor or the governor. As a Nigerian abroad, you are a nobody. This is not about your bank account or whether you can pay your bills. Everybody is Nigeria is a somebody in his circle or society. Abroad you are a nobody. You won’t understand this because most of you have never lived abroad. By the time most Nigerians abroad realize this, they have spent too much time abroad and can’t come back or adjust, or in most cases they have nothing to show financially for their financial japa abroad and are too ashamed to come back. |
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