₦airaland Forum

favouredbymercy:
Come to think of it, has anyone come to the end of life of their lifepo4 battery?
LFP is baba

Hasn't happened yet.
Just LFP packs with swollen or exploded cells due to BMS failure. That's all that have been hitting few LFP packs.
But getting to a point of can't hold charge again after many years, not really for now

Trippledots:
I actually did. Makes no sense to be blindly loyal to a company that really doesn't care about you.

Now I will be having a second thought to any recommendations he gives me, cworth or not.

People should learn that Life continues outside/after a job.

Honesty gives you more money in the longrun compared to fast money from dishonesty.

Nigerian business men don't really understand that customer satisfaction is a major factor for success.

Trippledots:
It's actually terrible. I like cworth inverters, but these battery reviews are bad.

Funny enough I addressed these capacity issues with one of their marketers showing him proof from here, and be blankly told me that there's nothing wrong with their battery.

Pathetic.

I'm sure you didn't expect any other answer other than that

People still watch this thing? Nawa oh.
We no serious

Hotdiamond:
Thank you. What you suggested is cool. My budget limited at the moment. 1.3M max

If you mean 1.3 m for battery, inverter, panels etc.. Then omo you go wait save more, like triple of wetin you get now. Your pocket never ready yet for the kind of loads you have

CuteMaro:
Good point to note, however the reason I still recommend is the ridiculously cheap price for what is being offered compared to other so called reputable brands. Even cheaper than most DIY's for 280ah. I think it's a great deal regardless.

Some months back i got 280ah 24v (7.2kw) from mrreed at 850 k... That's cheaper than the fake 300ah that is 280ah from haisic. Only from Valto will same 280ah be costlier than haisic, coz i think his gets to around 1.2 m or so. But that's with a better bms, screen and build over the jbd bms in the haisic. Mrreed still uses same elements (maybe different brand of cells) as Valto but he's still far cheaper, but that's only if he has cells 😢 unlike Valto who always have stock.

Hotdiamond:
interesting and educating thread i must say. kudos guys.

which set would you guys suggest for me
1 130W fridge
1 43 inch tv
1 250W soundbar
6 light points
2 standing fans
1 PS4
2 laptops and a phone
i currently stay in a place where there is epileptic electricity.
plus i dont stay in a place for long due to the nature of my work.

i was looking at the ecoflow delta series. i dont know if it will suffice.

If you want to go for 48v which is mostly advised, just overkill it will a 10kwh battery backup and 5kva inverter of your choice, then panels to charge.

If you want to go cheaper, you can go for 24v system and have 7-8kwh backup, 3-3.5kva inverter and panels. But this isn't advised coz tomorrow you may want to add load and you'll stay at home more and you won't have option than to move to 48v to reduce current.

BangaRice:
Even your so called DIY cells have brands and are prone to faking too so whats special about DIY at the end. Many dont do good DIY jobs. DIY is stresful and not so scalable.

Nope... The cells are all tested before use. A 280a cell discharges 300a; a 314ah will discharge around 330ah. Signs they are brand new. Just get a reputable seller in China and you'll escape getting bad or harvested cells.

DIY isn't stressful when it's your passion to build. I'm sure you change bulb in your home.. That alone is stressful for some people and the prefer to pay electricians to do it. If you also don't want to do it yourself, pay a good builder to do it for you using cells and bms you trust. Will still be cheaper and far better quality than big brands.

Poor job? Yes.. That could happen. And again that's why you should be sure of what you are doing when building or you pay a good builder to do it for you.

Go to YouTube and channels like offgrid garage and thousands more will let you know how crazy people are for DIY in the western world over any brands.

Lastly we've this poor Nigerian mentality that anything made in Nigeria is poor quality. Lol. Pure self deception.

Dam5reey:
Haisic... Teardown

https://www.youtube.com/watch?v=qR4Ni6M1pJk?si=cRZE2WxSQDS04Tts

Why will they use 280a and market 314a?

Haisic needs to be boycotted by people going for brands.

dollarnaira:
They understand us better than ourselves. We like cheap beautiful packages. Aesthetic is never my thing. Personally, it is either diy or nothing except other factors that I will never complained about.

If the price did not shock us, we should not complain at all.

Same thing i always say.
This year, added many battery packs and all are DIY. That's the route I'm standing on always. Not following any brand

Dam5reey:
I have tested Sako, Sako na Full and complete Cells.

Cworth

https://www.youtube.com/watch?v=h8e2VY3_CO0?si=JW0qePcBdAiRLK9W

Exactly what i said.
And i bought 3 of this for a client last year. Even paid 4m for one 😭😭. Just seeing their backup i didn't even need to open inside to know that the cells are undersized.
I regret buying it for them. Hope they can still do like 5-7 years them though.

Offpoint1:
It's not a necessity? Let the entire earth stop it... You'll understand what necessity means.

You are bringing another argument. The talk is about sex being a necessity for an individual's biological existence

Goodlady:
Abeg shift. We are closing legs. That's final.

You think i de against?
Pls do that and kindly tell your fellow girls to do same and go hustle instead of opening legs as a currency.

iammolise:
I meant the girl losing her life too

Ok... Coz in every successful abortion, at least one human being, the baby, loses life

Offpoint1:
Have your sex, use your Fxxking protection or calender if ya nigga-raw.

Sex is a necessity as food or air is, don't let nobody tell you otherwise.


Like every other thing, USE YOUR HEAD.

It's not a necessity. The drive is natural but satisfying it isn't a necessity.
It is well documented of people dying for not drinking water, not eating or not breathing. We all know those.
But for millions of years of earth existence, it has never been documented that one person... I mean, one single person has died for not having sex or satisfying the urge.

Rather it has been well documented of humans in history who have lived all their lives as pure virgins. In fact, many people.

So it's not a necessity. Only the urge is natural to everyone

Goodlady:
Abstinence is key. Pregnancy should only occur in marriage.

Love how you jumped from abstinence is key to pregnancy only in marriage instead of sex.

Are you cool with sex with contraceptive before marriage, or that any thing sex should be only in marriage whether it's goal is pregnancy or not?

iammolise:
When i see people painting masturbating doom and gloom makes me ask which is bette; As a man which is better (I) masturbate and maintain control or (ii) get a girl pregnant when you're not ready and put her at risk of abortion and potential lose of life

Which one is potential lose of life? Every abortion involves a loss of life. The question is how many lives, one or two?

CuteMaro:
Just saw your video. Haisic performed quite well for the price.

So apparently, the most popular brands flying around here have been short changing customers

Buyers beware, stop buying names. The best bang for your bucks apparently are;

DIY from Valto and Mrreed (Untested though)
Deriy
Firman
LVtopsun
Deye
in no particular order.
and Haisic.

Chief please test Sako if you can, those guys have suffered some bad PR in the past, maybe they can use this opportunity to redeem themselves.

The DIY have been tested. You may just need Ray to add to his own test catalogue.

The only reason they won't is that they are mostly resellers. When they test, they direct people to where to buy. DIY won't favour their business.

These big brands also have aftersale services of 5+ years of warranty so if cells or bms fail, they'll easily direct to aftersale centres. DIY like valto and co won't guarantee you that though their battery packs could outlast any big brand battery packs. Buyers want to hear stuffs like 5 years or 10 yrs warranty. Doesn't favor these reviewers.

Its coz we are poor in skills but rather rich in gossips, yahoo, saidboj or gehgeh.... If not, in US or Europe, every solar savvy person builds his own battery pack by himself. No one or just few depend on batteries from brands.
With DIY, you are sure of your cells and bms.

Valto:
i don't use Hithuim and has never bought any. i use brand new grade A Gotion cells and it is 12000 cycles!. i also use EVE cells.

Oh. That's beautiful.
Didn't know Gotion had 12k cycle cells.

Now, did they say 12k cycles at 80% or at 70%?
That's if you understand the marketing strategy remark i made.

ValtechEnergy:
Valtech Energy 24v 7.5kwh/ 8.5kwh and 48v 15kwh/17kwh lifepo4 lithium batteries available
proudly assembled in Nigeria with brand new real capacity cells of 12000 cycles and smart bms!

Valto, this 12000 cycles of Hithium has been proven to be market strategy.
Every brand calculates cycles with 80% capacity but hithium does theirs with 70%.
Even the batteries with 6000 cycles at 80% could also meet or surpass 12000 cycles at 70%.

Its just marketing so as to use figures and attract people.
Nonetheless, hithium cells are good cells when you get their grade A which i know that's what you have.

CuteMaro:
I see nobody has mentioned battery capacity tests done by DIY WITH RAY on tiktok.

The test was conducted between Felicity, Firman and Cworth Batteries all of 10kwh capacity and the test results were quite interesting with the most popular brands failing woefully.

I will suggest people refer to battery capacity tests before recommending any brand. The market is a mess.

Only Deye, Firman and Lvtopsun got full capacity.
When i saw the cworth own i knew it was a waste of time coz I've 20kwh of cworth and I'm sure that thing has like 14kwh or so in it. You can never be sure of what batteries these brands put in their batteries.

The DIY batteries of Valto and mrreed are also only ones you can be sure of capacity. That's why i always go with them plus more affordable.

bassdow:
wait till they use a single teacher who already handles 3 subjects to teach them Solar. Funny enough, e fit be say the only solar panel the person don see na for other people roof.

Dem go just look introTech teacher, tell am say "You should be able to teach the pupils "solar photovoltaic installation and maintenance" na

All of una just drop pessimistic views.
Many no go do am, but some schools will and that's a win

New Nigerian curriculum for secondary schools now include solar photovoltaic installation and maintenance from js1 to ss3.

Nigerian kids could be experts in solar installation before they are done with ss3.

Hope every school adopts this.

Solar installers here can also apply to schools as part time job.

CuteMaro:
Does this mean inverters that support this feature ( can working without batteries) have the ability to wake a dead lithium battery caused by bms shutdown?

That's just another feature that hybrid inverters may or may not have. Even external charge controllers come with this feature while others don't.

bassdow:
Only came here to see if possible to get an inverter one is no longer actively using for whatever reason so long it's still functional or repairable BUT if after a while I don't get any, would just look into getting one just for this experiment. Hopefully if it works out, una no go want to know how far. Just sharing the intention here is enough for anyOne to try actualizing it especially since some of una don already voice out how easy it kinda seems.

When you succeed pls share findings and result with us since we all want to learn.

As for inverter that no one is using, we no get.
But if you wan pay for the inverter for the experiment, ehen, then that one we get inverter to give. 😂😁

bassdow:
Might have been somewhat mistaken in my last comment. Not often easy making comments while almost at same time moving from screen to screen.

Either way, got my guesses, theories, and findings and would need put them to action. Once again, if it were so easy, why isn't such feature mainstream after all both Charge controller's battery output and inverters battery input are both paralleled to the battery's connectors.

Actually, inverter doesn't get DC from battery. It gets from dc bus. It just happens that it's the battery that's connected to the bus. When you parallel your cc to battery, that cc output still enters your dc bus via the same battery cable. That's why when your battery is filled up it stops charging and your load in house is inverted from the dc from the cc that's hitting the dc bus.

Once you disconnect battery, the cc also disconnects coz it has nothing to clamp it's voltage on. That's why that inverter will only work with battery.

For the inverters that have the solar alone capable feature, they add something to the bus bar as earlier discussed that regulates and stabilise current. It'll now be like virtual battery such making the CC to continue to output dc into the dc bus without cutting off when battery is removed.

Every inverter can't have it. There's why it's an optional feature. Also the less features you've in these inverters the better. The more the features the more likely you will get faults. Manufacturers like to keep things simple. If you want added features, pay for it, but e fit de spoil any time. That's why your old simple transformer inverter of 2015 is still working till today, but new ones don't last 2 years 😭😭.

Good luck man.

HeavenlyBang:
No reason why it wouldn't work. DC is DC at the end of the day. You just need a panel that closely matches the battery voltage range and stable output.

I'm not sure an inverter would be able to tell apart 13v from a pv vs 13v from a battery, though I expect the panel's output to be noisier/less clean.

That's what i just told this bassdow guy and he's saying a charge controller can't regulate high voltage from panels. Lol.
DC is DC.
All those inverters that work with only solar panels do is that they add the DC from charge controller also into the DC bus that the battery connects to. Then they use capacitors and electronics to clean the noise and the inverter picks it's DC from that DC bus and inverts into AC. The inverter doesn't know difference between 54v from battery and 54v from charge controller as long they are in same dc bus and clean.

bassdow:
Cleaning up the ripples (what we mostly call noise) ain't the only thing that's needed to be done. Without a fixed voltage source source as the battery, the charge controller got no way to regulate it's very high voltage down to what's required e.g even a 12v rated charge controller can give upwards of 20v. It's the battery that brings it down. Same thing that happens when you connect a strong battery / solar panel to a weak or small battery / solar panel, the strong one comes down to level of the weakest one.

Another is the inverter could decide to draw large current which the charge controller might not be able to supply hence one risks damaging the equipment. So it's not all that easy though seems doAble from the little I have looked into BUT then again, theory and practical differs.

if it were so simple, I presume it would have been a mainstream feature of all inverters

I no come understand you again. You just said a charge controller can't regulate high voltage whereas that's the primary work of a charge controller. This is funny 😁. All a charge controller does is to step down DC voltage to the voltage you set it to. It can receive 300v 12a and step it down to 12, 24, 48v or any figure you set it to, while it increases amps or regulates it accordingly. Every charge controller is a DC-DC converter.
You thought only battery can give 48v for eg? 🙆🏾‍♂️🙆🏾‍♂️.

Anyways.. I guess you've already figured it all out.

bassdow:
There seem to be a communication gap here.

Once again, There's a feature in some or most Hybrid inverters whereBy they can directly get their supply from the Solar panels. Such feature never exists on non-Hybrid inverters.
Have often wondered why the Inverter can't just draw current directly from the Solar panel since the output of the charge controller, and the inverter's battery cables are both paralleled to the battery.

I need not put a charge controller into an inverter. That's not the aim. The aim is to figure a way to power the inverter directly from the terminals coming from an external charge controller so long it's output is stable enough. Of course we know one of the battery's role is to take care of noise while also ensuring voltage doesn't go higher than necessary. I believe it's possible.

There still would be need for a battery BUT the priority would be more when there's enough from the Solar panels, clean it up and use else rely on the batteries. That way there would be less strain on the battery.

mayBe I'm not explaining it well enough BUT I know what I wanna do; just don't have an any how inverter for such experiment

Now you explaining yourself better and it's clear your intention.

My guess!
The difference with inverters that can work with solar panels only without battery and the ones that only work with battery is DC BUS.
In the ones that work only with battery, the DC BUS is connected only to the battery. Once battery is disconnected, inverter goes off.

Whereas, the inverters that can work with solar panels alone without battery, they connect the mppt to the same DC BUS that battery connects to. Since the MPPT is already a DC-DC converter, it'll just easily get required voltage and dump into the same common DC BUS that battery is connected to. It'll surely need capacitors to clean up ripples from the MPPT DC voltage. All the inverter needs is to get power from the DC BUS be it from battery or solar. It'll only go off if both are disconnected and DC BUS is low or empty.

Again, my guess!

All Gehgeh says is for the good of women and the country.
Women need to start hustling and be productive for themselves and for the nation. Learn a skill, women.

Your only skill can't be tôoto. You are ruining our nation and yourself.

God bless Gehgeh.

mctfopt:
My question. Is what size of cable does this user have to be able to do this?

16mm²?

35mm²?

120mm²?

The answer is that it can. Once you parallel batteries, the amps drawn are shared among them. If he draws 300a and both have 150a bms, it'll work well safely if the battery manufacturer confirms that cells can discharge at 1C.

As you rightly questioned, he'll have to have wires that can safely carry each 150a (35mm). And if he plans to use combiner busbar, it must be rated 300a, and cable from busbar to inverter must be rated for 300a (95mm) and then inverter must be rated to take in 300a, most of these being unlikely 🙆🏾‍♂️🙆🏾‍♂️🙆🏾‍♂️🙆🏾‍♂️.

But yes it can.

bassdow:
Thought I was clear enough.

There's a feature of most Hybrid inverters whereby even without a battery, they could function and even in presence of a battery, they could still directly draw from the Solar panel.

The non Hybrid inverters don't have such feature. In fact they need the battery to even power themselves first before anything else. And while in operation, should the battery go low, they would disconnect even if the Solar has got enough.
So I thought if I do a couple of things, should be able to get such feature onto a non-Hybrid inverter

Then it means you want to put a solar charge controller into the non-hybrid inverter and make it a hybrid. That's Cool stuff.

The feature for an inverter to run from solar power independent of battery isn't a core hybrid feature. Many hybrid inverters don't have that feature though only a hybrid can have it since it has charge controller for solar panels. It's just an extra feature that hybrids may or may not have like supply to grid, power priority feature, etc... What makes an inverter hybrid is just one thing alone - that it has internal ability to get power from sun. Shikena.