₦airaland Forum

prince4pro2:
not using it as a breaker but as a switch btw two batteries. Just want to know if it will work well

YES would work very well. All na conductor so long it's for the rated capacity

joseph4sales:
I recently upgraded my home solar power system, moving from a 2.5kVA inverter to the Itel 4kVA Hybrid Inverter. At the same time, I replaced my old solar panels with 4 × 590W Jinko N-Type Bifacial panels, increasing my solar generation capacity to 2.36kW.

To complete the upgrade, I installed a Valto 24V 320Ah (8.5kWh) LiFePO₄ battery, equipped with a JK Smart BMS for real-time battery monitoring, protection, and battery health analysis.

Rather than relying solely on the manufacturer's specifications, I decided to put the entire system through real-world testing to see how it would perform in everyday use.

Overnight Backup Test
My first objective was to determine how long the battery could power my home without grid electricity.

I disconnected from the grid at 6:08 PM and allowed the battery to supply power throughout the night. During the evening, my household load ranged between 450W and 520W, powering my Skyrun Refrigerator, One 18inch Standing fan, 55inch Tv, 3 LED lighting, Airtel Router, One 16inch Standing fan, Playstation 4. Occasionally i used the Microwave. As the night progressed around 11pm I switched off TV and PS4 and some lighting, the other appliance remained, the fridge was powered all through the night and Two Fans

By 7:06 AM the following morning—after nearly 13 hours of continuous operation—the battery still had 61% charge remaining. The JK Smart BMS reported 194.2Ah remaining from the battery's rated 320Ah capacity, meaning only about 39% of the battery had been consumed overnight.

One of the most impressive results was the battery's internal balance. The voltage difference between the highest and lowest cell was only 8mV, indicating excellent cell matching and a healthy battery pack. Temperatures also remained stable throughout the entire test.

Solar Charging Test
The next challenge was to see how efficiently the upgraded solar array could recharge the battery.
Charging began at approximately 10:00 AM with the battery at 61%. Under good sunshine, the 4 × 590W Jinko N-Type bifacial panels delivered excellent performance, reaching a peak charging power of approximately 1.7kW. At that point, the battery had already reached 98%, showing that the solar array continued delivering strong charging power even as the battery approached full capacity.

After about three hours of charging, the battery reached 100%, completing the recharge from 61% to full using solar energy alone. This demonstrated the effectiveness of the upgraded solar array and the charging capabilities of the Itel 4kVA Hybrid Inverter.

Final Thoughts
This upgrade has completely transformed my solar power system.
The combination of the Itel 4kVA Hybrid Inverter, 4 × 590W Jinko N-Type Bifacial panels, and the Valto 24V 320Ah (8.5kWh) LiFePO₄ battery with JK Smart BMS has delivered excellent real-world performance.

The system successfully powered my home for nearly 13 hours overnight while using less than 40% of the battery's capacity. It then recharged that energy back to 100% in about three hours under favorable sunlight, with a peak charging power of 1.7kW.

Apart from the battery, equally priase your transformerLess inverter.

prince4pro2:
Pls guys can DC current flow through this change over? I want to use it for two batteries. I just need to know if DC current can flow through it.

if you already got it, no issue. Use it BUT hope you know it's just a switch, and not a breaker ?

Me wey dey check price of battery and screen before showing interest in buying any phone. e get why.

I no sabi buy wetin to maintain go stress me. I want to be able to maintain you without noticing it

jFrankNorfleet:
I've installed and started using it since Sunday afternoon

This was the final installation

1. 6KVA Deye hybrid inverter

2. 16KWH Deye lithium battery

3. Jinko Bifacial 725W panel. 8 pcs


It's been an awesome experience so far as I'm yet to use generator since I switched and the lowest battery percentage I've closed with was around 12:30am at night which was 48%.

Now I don't panic when there's no light or when my light trips off, which it did this morning.
I'd even say I've only used light to charge the inverter this previous night, aside that it's all been the panel. The panel almost always, even at slightly cloudy times, give more power than the shop consumes.

Thanks house for all the advice and I'd like to hear more advice in terms of maintenance, what to do and what not to do.

Na serious money you spend so Ooo

ksmart027:
Get a 12ah or 18ah lifepo4 battery with bms from 9japrince. It has more life cycle than the 18650 cells. It has similar charging parameter to lead acid so your fan charger will be able to charge it. You can also get charger from ali express if you want to. Got my charger for 4,500.

Being able to recharge it is not the only thing. How about how long it could take to recharge it since now the battery's capacity has been increased BUT charging capacity of the fan's internal charger remains same.

Would suggest He/She gets a charger. Alternatively, if they got solar and it's 12v system, no need buying charger sef BUT that approach go bring argument

Nairaland sabi copy and Paste old content.

If Christians rely on Nairaland News for when dem go Blow Trumpet, plenty people go miss Rapture be that because e fit take them 1-week after Rapture don finish

prince4pro2:
Won't the inverter wake it with the Gen? Must I need to get the external charger ?

you can try na BUT a lot of times they don't. Either way, be ready to give it at least 2 hours to observe any change so don't rush disconnecting it if you don't quickly see signs

prince4pro2:
battery is 100ah 25.6v inverter is 4kva itel hybrid. Gen 3000

You just need an external Lithium battery charger that is capable of waking that battery up and the price no cheap. Would suggest you find those in that field around you to keep cost low AND yea, your generator would carry it well

prince4pro2:
if I wake am, am not draining it to such point again. Pls can the Gen wake it

First of all, a Good BMS wey sabi e work no suppose even allow things get to such point. Really nonsense just full market nowAdays.

You would need get a charger or look for someone who's got a charger or someone in that field to assist you. As for ya generator, you minght have to remind me capacity of the battery, inverter, and generator.

Also there's no harm in making an attempt. e no go spoil anything. Just try and if generator cry any how, off am go rent generator.

No need spending money on external charger just for this purpose because those things are pricey

Bryanluke:
but you all didn't recommend nepa(AC wire) on this thread before now. He should kukuma get 4mm dc wire for 2k per yard as he's using binding wire on the roof.. that's my submission oo

says who. mayBe you no see am as it's been discussed severally.

Also the 4mm would work BUT only if the distance from roof ain't that far else money no go remain.

As for person wey ask where battery of 50,000 naira dey, e dey if you find am. A lot of batteries being disposed off for sale ain't always bad enough EXCEPT the user na person like me wey go ensure I use the body + soul finish before selling them off.

Once again, this person's load doesn't require much budget and a single 200AH battery is pretty much even if e decide add Tv and PC later.

of course if He/She sees a good enough Lithium based battery even if na 150Ah or 100Ah but of good quality, no issue so long e no pass 100,000 naira. Once aggian, make He/She no go allow their slim budget help dem waste money.

That's even if TRUEly this person actually doesn't have more than such budget. A lot of people come here with silly slim budgets just to see what we would say. e fit still later spend millions

bassdow:
With such loads, you need not BUY inverter at all. Just buy any 12v battery of your choice NEW / USEd and (USEd 2pcs 300w or 1pcs New 625w) Solar panels and any good enough MPPT charge controller

As for being able to recharge your phone(s), there are charge controllers that come with USB ports or buy USB adaptors that run off 12v

Buying things this way gives room for future growth UNLIKE power tanks or whatEver they're called.

If you wanna take thing further, and shave off some costs, you could buy really USEd 12v 200AH leadAcid battery for about 50,000 naira.

Mind you, should you later wanna reSell it to scrap buyers, you could even recoup your money if not make few change on top

@Topper33 see the costing should in case it makes sense to you

2pcs of 300w Mono solar panels = 50,000 * 2 = 100,000 naira OR add small change buy just a single 625w
Used 60A MPPT charge controller = Budget max 100,000 naira
12v 200Ah Lithium / USEd leadAcid battery = Budget between 50,000 to 100,000 naira depending on it's condition

Somewhere along the line, there would be change of like 17,000 to 20,000 naira which you can use to buy NEPA wire to be used as Solar cable because cost of buying copper go chop your money wella especially if distance still far from roof.

You need no breakers or the like though you could always have like a single breaker between the solar panels and charge controller BUT really, not neccessary.

use binding wire of about 500 naira wey you no go even use finish take hang the panels on top roof or pay to have such done on your behalf.

Bryanluke:
Swears, used leadacid in 2026.. likewise he told me i recommended a 200w panel in 2026😅🤣

mayBe na both of us dem go tie for stake give firing squad

Fremlin:
Boss I admire all you do, but recommending used lead acid should be a criminal offence

You do know You Right/Wrong WHILE I'm equally Right/Wrong hence at end of the day, everyOne's Right/Wrong in their own way.

Would quit responding so we don't continue littering up the space

Bryanluke:
If the sun goes off for a week, that means you have a backup battery. It seems you do talk or reply to some comment out of context at times.. 1kwh 18650 with 1000w inverter and 1/2pcs of 200w panel will fly with 300k budget

you really wanna start argument YET recommending 200w solar panels in year 2026. Good luck.

I don talk suggest mine. At end of the day, the final decision is in hand of the ASKer.

Mind you, would suggest we stop refering to battery capacities in kwh as that could be misLeading to a lot of people who don't know their equivalent in AH before there would be another outBurst like was done for Inverter.

bassdow:
Most times, I comment based on personal experience and journey.

I might be able to spend 1,500 naira at a sitting in an eatery today and not easily feel it, doesn't mean it's always been that way from the start. One thing about not coming from solver or gold spoon is as we grow, we learn ways to survive.

Moreover buying assembled 18650 batteries of 1kwh or even 1.5kwh would only cost him more and give aesthetics.

His/Her load doesn't need all those plenty spendings + gives room for future growth.

In fact e fit still carry Tv (not all TV) and laptop if OP is willing to put in the effort. I don't talk from Google or AI like some people say.

I am someone who has destroyed a brand new Asus laptop while trying to make it last 2-days on single charge AND then sef, na normal charger I dey use Ooo. I never even know wetin solar be those days.

Like I dey now, should the sun decide going on strike for 1-week, I can afford to run ma Fans at fun strength for the entire duration without need to recharge.

At end of the day, taste of the pudding is in the eating.

Seriously, it's not even difficult enSlaving people. As in seriously it isn't at all as most of us make it too easy

prince4pro2:
My battery bms don shut down. Can I wake up the battery with 3000 Generator? Battery is itel 2.5kwh inverter is itel 4kwh.

being able to wake it up is one thing. Another thing is knowing what lead to such to avoid a repeat occurence

Bryanluke:
I was about to comment before you redited it.. but i won't buy the idea of not using inverter even if na sachet inverter, and buying used lead acid na rubbish.. instead of used lead acid.. make he go buy assembled 18650 batteries of 1kwh. Wichat build and sell it on IG & tíktok. Even a lot of people build it if they sabi their onions nothing like explosion wey una see online.. cux am using the 18650 battery, a small setup of 30ah and inverter which i charge with nepa.. is just a backup cux I'm on band A and we do have light..

Most times, I comment based on personal experience and journey.

I might be able to spend 1,500 naira at a sitting in an eatery today and not easily feel it, doesn't mean it's always been that way from the start. One thing about not coming from solver or gold spoon is as we grow, we learn ways to survive.

Moreover buying assembled 18650 batteries of 1kwh or even 1.5kwh would only cost him more and give aesthetics.

His/Her load doesn't need all those plenty spendings + gives room for future growth.

In fact e fit still carry Tv (not all TV) and laptop if OP is willing to put in the effort. I don't talk from Google or AI like some people say.

I am someone who has destroyed a brand new Asus laptop while trying to make it last 2-days on single charge AND then sef, na normal charger I dey use Ooo. I never even know wetin solar be those days.

Like I dey now, should the sun decide going on strike for 1-week, I can afford to run ma Fans at fun strength for the entire duration without need to recharge.

At end of the day, taste of the pudding is in the eating.

Gshems:
I no even know weytin to talk.

Make we try resolve this. Then don't be surprised when someone else comes with budget of 200,000 or less BUT that budget is workAble if He/She is willing to do as suggested BUT if e wan follow normal way, na e pocket go feel am.

fuckboys:
even with panels? This your budget is not budgeting at all.

Even if I recommend itel power tank or the colar solar generator, adding a panel to it is already a budget of 500k


Just go and buy generator.

Should He follow ma lead, it would BUDGET well enough. One needs think outside the BOX and like @dollaNaira do say, all na sense to use Solar system.

Issue is, we spend money like it's there when most times, we struggle to even gather it

Topper33:
Good evening My People

With 300k, what is the solar panel setup one can get for the following loads

6 DC fans (30 watts each)

Ten 5 watts bulbs

Normal phone charging

I am looking at a setup with a panel since there is no electricity in the area(bad transformer)

Your advise and recommendations would be appreciated

PS(power tanks already cost this amount but does not come with panel, so it's already beyond my friends budget)

With such loads, you need not BUY inverter at all. Just buy any 12v battery of your choice NEW / USEd and (USEd 2pcs 300w or 1pcs New 625w) Solar panels and any good enough MPPT charge controller

As for being able to recharge your phone(s), there are charge controllers that come with USB ports or buy USB adaptors that run off 12v

Buying things this way gives room for future growth UNLIKE power tanks or whatEver they're called.

If you wanna take thing further, and shave off some costs, you could buy really USEd 12v 200AH leadAcid battery for about 50,000 naira.

Mind you, should you later wanna reSell it to scrap buyers, you could even recoup your money if not make few change on top

Unfaized:
Before you build, how many Lead Acids does yours come with?

Is it 2 6v combined or 1 12v? You have to take note so that you can get something that will fit into the battery compartment and you can cover as normal.

Even if it doesn't fit, One could always stick it to back or base of the Fan's stand. MoreOver wonder why dem dey talk build like say na one kind rocket science. Go market buy a couple of lithium cells (even if na those cylinderical ones used in street lights) Pair them to give you what you want, get suitable charger and be done with it.

Unfaized:
What's the point of using a giant 100ah for a rechargeable fan? It's meant to be compact and moveable and the lithium battery can fit right into the same compartment as the old Lead Acid.

if you had read my comment to comprehend, you would have observed I stated different scenarios.

I have a distant neigbour (some streets away) who already own 2 dead lead acid batteries (12v 200Ah) and was looking to buy rechargeable fans which he accidentally mentioned to me. When I heard cost of just 1 of the Fan, I informed him that about 60,000 naira (could be less sef) could get 2pcs of such Fans USEd and that he shouldn't bother about the batteries since I would make it work with his already dead batteries. He was surprised BUT told him don't worry.

of course He didn't worry much especially since He sees me as a misterious person who seems to know much. Mind you, He was same person I told his wife their solar setUp would go bad within a year just by seeing the panels on their roof (visible from the street) and some of their load in the shop.

Today same Man got 4pcs of Fans of which 3 are in active use and those batteries are still working like they're brand new.

To such a person, He didn't have to buy the batteries because He owned them already and was even looking to sell them off. Rarely carries load even during the day time.

So you see, peoples' needs are unique hence no one size fits all.

Just try read my comment to comprehend

Thanks

Unfaized:
I also switched to lithium for my rechargeable fan more than a year ago and it's still going strong. The lead acids including follow come and replacements couldn't do 3 months even.

it's either those followCome batteries ain't meant to last long OR they weren't the right size.

Have already discussed reason why most of those batteries go bad within a short time and not willing to repeat ma self again

Bryanluke:
are you using a century fan too. For my own setup the guy that build for me, did 12v 14ah for me . I think he collected 25k or more. I don forget sha..

Omo the battery dey serve like mad, he no off easily, unlike the useless lead acid battery

Just so you know, issue with those FANs ain't entirely a battery chemistry issue BUT mostly battery capacity.

One of the sweet things of Lithium chemistry is more Amps per kg hence the size of a 12v 20AH leadAcid battery would always be physically much bigger than an equivalent for Lithium based battery.

Now add the required charge time between both chemistries and you quickly understand what's going on.

My neigbours would find your comment funny because He would swear the 3 fans they using could last over 4 days on no charge at all despite the fact their leadAcid battery (12v 200AH) is what He already wanted to sell off to aboki as scrap.

Me nko, I use similar though mine are still very much in good condition. Funny enough, I only suggested it and He blindly agreed I set it up for him.

But then again, for those who don't already use leadAcid battery, and not using Solar, or require much mobility, Lithium battery remains their best bet ELSE just go buy any WEAK leadAcid battery of at least 100AH and be done with it

Bryanluke:
my own century dc standing fan dey blow like mad ooo.. it's those old version and I converted using a lithium battery with it though.. don't mind the tape I use to cover the light..I no like make e too dey show for night

A lot of new items nowAdays get as dem be despite costing more.

jp130:
Hi, good morning all. I'm using a 12v 130ah sunfit gel battery. Please at what voltage should I consider that the battery is 50% discharge?

12.2v but if you could try not to even allow it get past 12.4v better.

Much better reading the voltage when no load is connected and not charging. With load, it could appear lower than it ought be

Iinnov8:
If you need a stand-alone inverter with amazing power at good price, then consider the 3000w Pure Sine Wave Easun Inverter for 94,000

Peak power is 3000w, and continuous power is 1500w.

This inverter can power home appliances such as fans, washing machine, deep freezer, blender, pressing iron, microwave, toasting machine, and even a 0.5hp pumping machine and inductive electric cooker, as long as the total power pull at a time does not exceed 1400w

It is also very energy efficient, consuming less than 7w to power itself, so your batteries will last longer on it.

Most importantly, we provide after-sales support through repair services and even Swap programmes. T&Cs apply

Visit our dedicated thread to read testimonies and feedbacks about the inverter:

https://www.nairaland.com/7833852/3000w-easun-pure-sine-wave




https://www.youtube.com/watch?v=IL9R254qXFA&t=20s

Now this is a helpful advert

jFrankNorfleet:
How do you mean "40% load"?

Have attached a screenshot of comment by @Jefferyzz which appeared directly underneath your comment.

Now what I meant is, You really shouldn't expect Clients to always do as told so you either prevent abuse or make it less likely for them to get to that stage. Of course even when a client is willing to do exactly as told (most whose money are directly involved would), what about others in the family e.g Wife, Kids, etc ?

In software security, we never TRUST the user hence we Verify Everything. It's one of the best way to remain secure. We don't just expect the User to do what's Right. Mind you, that "user" could be anything including the web browser.

Back to topic; if I check your load and see the things you got, I attempt to by default size your system based on the things I see, not necessarily those you say you would only RUN. Hence if ordinarily a 2Kva inverter would do, I could suggest 3.5kva or 4kva.

Whatever load that would make an inverter say 50% could make another inverter say 100% or 20% or 70% or whatever. That variable is the inverter's size. When a person's 2kva inverter say 50% looad, another inverter of 4kva could say 1% load.

That's the idea and it's also what @Jefferyzz meant. It's similar to what's done with batteries (actually all battery chemistries though leadAcid batteries are most obvious)

Ezimuoh:
Some people swear that its the best thing since slice bread

EveryOne got their opinion.

temizeee:
Baba your own too do untop this your inverter problem ooo
Many people advice you to add the panel in series say he no go reach 100VOC. you just dey crack everybody head for here, Go buy mppt if you can’t take the risk please move on sir your own too do ooo

Sir/Ma, wouldn't be nice blaming someOne not attempting risks you wouldn't share in.

Myself have shared 3 or 4 things to experience should it be done in series and going bad is the worst case. Of course most times the inverter wouldn't go bad, performance could drop and/or you stress the components of your system. Have had to reduce panels just so it works better.

Have encountered such issue with clients (mostly from Nairaland) who bought things themselves. Most times I try work around it and things work Okay. A few times, there are complains where it works well sometimes BUT stops charging some other times (especially when the sun comes out well)

Another is, that person you expect to blindly take such risk, you ever bother to know how easy it was for them to afford it in the first place?

There are lots of silly things we technicians do and get away with because often when issues arise, it's difficult to actually know the root cause especially if it's been a while.

That thing go work BUT I can't beat ma chest and give such assurance hence better to be cautious than stewpid. Na only the installer wey get physical access to said setUp fit know better. Mind you, na sticker pictures we see, not the actual readings (since we don't even know nature of the panels) at when said panels are giving near max output.

Mind you, Our role is to suggest, advise and guide. Not coerce / guilt-trip. Choosing to follow our advice is completely up to them, because the final responsibility for the outcome rests solely with them.

Pabodo:
Hello House Please had anyone used the Growatt 6kva inverter (SPF
6000
ES
Plus)

Saw some negative reviews about Growatt inverters packing up within few years and choose to ask

I will appreciate a candid advice

Generally, Growatt is a budget brand. You get what you pay for. If you see the ones that wouldn't packUp within a few years, most still wouldn't buy due to cost.

TransformerLess inverters generally can't last as much as Transformer based inverters BUT even among them, quality matters.

Now add the fact a lot of people abuse their inverters.

What I do for most clients when buying or recommending inverters for them is: if they need 2Kva, I recommend at least 3.5kva or 4.2kva

That way, chances of them ever reaching 40% load would be very far.