₦airaland Forum

Good morning all. Please is there anyone dealing with replacement inverter boards here?
Many thanks!

You are allowing a lot of assumptions to spoil your day. What you need ARE REAL LIFE DATA FROM YOUR SYSTEM and not some presumptions. Spend some time over the next few days to monitor your inverter checking the panel voltage. How close to the values in the sticker or expected are you getting? Now multiply the highest panel voltage you saw by 2 and see how close it will be to 100v.
If you get less than 80v you are extremely good to go. Quietly ask your installer to connect the panels in SERIES and enjoy life.
If you get 80-90v ( I really doubt you will get that sha, in the picture you uploaded earlier I saw 35.4v, multiple by 2 will give you 70.8v) I will still advise you to connect by panels in SERIES. You have some headroom enough.
BUT If you get greater than 90v, keep the second panel for now and plan to upgrade later.

hoover420:
Thanks, I think I’ll keep the panels and sell the inverter then. That Bread inverter, where can I get it cos I don’t think it is on Jumia, cd care or Konga

It's the same. It is better if your cables are short between battery and inverter.
Whichever gives you that is better


Modified: I later saw you have been responded to

prince4pro2:
Observe the diagram and understand what am trying to ask. Although I think I will have to get a breaker btw battery and inverte/Cc

I am sorry to te you this : your had absolutely no security!
SPD that is not earthed is nothing more than decoration.

SourYoghurt:
no, the entire system is not earthed, everything is just positive and negative.

You are good to go. However expect it to take up to a week.

temizeee:
Good day everyone, Does anyone know if DAYO INDUCTION COOKER can be shipped to outside Lagos state, i plan to ship to Ogbomoso oyo state…. I realize it’s a pay before shipment service.

bigsam75:
Please is it possible to do M.Sc with your previous B.Sc while running another first degree in same school as full time Nigeria?

According to Chatgpt:
Yes, it is possible in Nigeria, but it depends on the university’s regulations and the mode of study involved.

In most Nigerian universities, there are three main issues:
1. Matriculation status
2. Full-time registration rules
3. NYSC implications

Generally:

You can use an already completed B.Sc degree to apply for an M.Sc.

But many universities do not allow a student to run two full-time degree programmes simultaneously within the same institution.

Some institutions may allow it if one programme is part-time, sandwich, distance learning, or executive.
For example:
If you already have a B.Sc in Biology and are now studying MBBS full-time, some universities may still permit you to enroll in an M.Sc — especially if the M.Sc is:
part-time,
coursework-light,
research-based,
or externally supervised.

However, if both are officially classified as full-time programmes, problems can arise with:

Senate registration,

student records,

course clashes,

hostel/student status,

and examination eligibility.


In practice in Nigeria:

Some schools quietly tolerate it.

Others strictly prohibit it once discovered.

Policies are often enforced inconsistently.


A few additional realities:

Postgraduate schools are sometimes more flexible than undergraduate registries.

Professional programmes (Medicine, Law, Pharmacy) often have stricter attendance requirements.

Funding/scholarship bodies may prohibit dual enrolment even when the university itself does not.

The safest route is usually:

Full-time first degree + part-time M.Sc or

Full-time first degree + research M.Sc with minimal physical coursework.
You would need to check:

the Postgraduate School regulations,

your faculty handbook,

and the Academic Planning Unit of the university involved.

Examples of universities where policies may differ include:

University of Ibadan

University of Lagos

Obafemi Awolowo University

Ahmadu Bello University


Legally, there is no general Nigerian law outright banning it. The restriction is mainly institutional and administrative.

codemaster2much:
Hi everyone,I need help reviving a HenryLFE 12V 150Ah battery drained to 10.24V. The BMS is locked and the Bluetooth signal has disappeared (it won't show up on any phone/app).What we've tried:14.6V 20A LiFePO4 Charger: Won’t start; doesn't "see" the battery.Parallel Jump: Tried jumping with another battery, but the BMS won't wake up or allow the charger to take over. Help

What was the voltage and the amp capacity of the battery you used? You might need to give the batteries a few hours to rest and repeat the parallel connection, especially so IF the BMS has low Charge amparage.
Others may have a better opinion but what I had to do once upon a time was to connect an appropriate voltage solar panel to the battery briefly under monitoring and the BMS woke up

There is a caveat to this. In the days of Lead acid battery, it also meant that before you can be able to have power, you must have a certain number of batteries. 48 v needs four functional batteries BUT if you have four batteries for a 24v system and one becomes faulty, you will just remove it and made do with two.

bassdow:
it's not bad. Just not as good as 48v system.

Same way a 12v system ain't that bad; just not as good as 24v system.

Same way a 48v system ain't that bad, just not as good as a 96v system,

and so on.

It mostly depends on your kind of load. If running AirConditioners, and other high inductive loads, then if you care for efficiency and long term health of your batteries, your minimum should be 488v system and above.

For simple loads, 12v is good enough. Followed by 24v.

Then there are other not so obvious things such as, cost of breakers, wires, fuses, etc. The higher the voltage of the system, the cheaper they get. For example, wires are priced by thickNess and if you needed 16mm on 12v, for 24v, you might need 10m or less and for 48v, you probably need just 6mm. Same with other things.

Your batteries also runs cooler hence have many more years to serve you.

Of course if using solar panels, the higher thhe voltage, the hiigher is total wattage you could run. Most 12v system can't run beyond 700w to 800w but 24v system can ruun approximately 1,600w while 36v system would allow about 2,400w and 48v system would run at least 3,200w and so on

Most rarely understand until they've been there.

Please house I am in the hunt for a 24v 4.2kw hybrid inverter. Users, any recommendation or experiences on specific make or model, either positive or negative?
Budget limited to about 400k .

Many thanks!

I know the guy don sell the CC but for record purposes the CC would have worked well.
CCs can tolerate over panelling but not overvoltage.
So, what the CC does is take the maximum of 1650w @24v and ignored the rest. Many people on this forum recognised that and overpanel for cloudy days where production may be severely affected.

To determine the expected daily generation of the panels, a factor of 0.7 (inefficiency factor, wiring, distance, cloud cover etc) X total panels X hours of insolation.
2400w X 0.7= 1680w well within the range of the 1650w @24v.

Benefit? He would have been making full use of his money without extra expenditure.

There is absolutely certainty that four panels will be giving him about 1200w/h only

bassdow:
I feel like teaching you how to do the necessary calculations so you're able to help yourSelf BUT issue is, I have done that several times YET people rarely read previous pages hence I'm begining to see such as stressful and waste of time as no need doing something that wouldn't be utilized.

Still have made a weak attempt as I am not even motivated enough to stress mysef as Me know say na just waste of time trying to teach people something they got little to no interest in.

See the area I underLined in red, take the 1650w and divide it by the wattage of solar panels you want to use which is 400w in your case and whatever number you get, is the maximum number of 400w solar panels the charge controller can handle.

I underLined the 1650w because from your comment, your battery is 24v. if it's 12v or 36v, or 48v, or 96v, it would be different.

So 1650 / 400 = 4 which means you can use maximum of 4pcs of 400w solar panels.

A 48v battery, would allow up to 8pcs of same 400w solar panels.

of course, depending on configuration, you still need to ensure the total current and voltage remains within range.

I would have continued further BUT like already said, most of una na viewOnce una dey do hence all these na waste of time.

Likely as 3series , 2 Parallel as the Max input of the CC is 145v

osayuwamwen:
I have 60amp Felicity controller before will it support up to 6panel of 400 watt? Below is the screenshot of the controller

Some starts from 2 to infinity! All not necessarily mine

bassdow:
hmm
Some mean say the inverters plenty. Wonderful

Good morning house.
Please I am in need to have some inverters repaired.
Is there per chances anybody in this forum into inverter repairs in Ilorin -Ogbomoso- Ibadan axis?

Many thanks

A good example of voltage sag with tubular .
Try and keep the load on for hours to see when it will drop to 12V it 11.5v and compare to when you were using the "dry cell".

codemaster2much:
I am testing a brand new 220Ah 12V Multipower Tubular (Flooded/Wet Cell) battery connected to a Prag 1.2kVA Pure Sine Wave Inverter. I recently transitioned from a 200Ah (Dry Cell) battery.
Test I ran:
I fully charged the battery to a float voltage of 13.6V, then applied a load of approximately 150–180W (80W AC fan, 10W LED bulb, 1 smartphone charging, plus inverter idle consumption) after Nepa took light. After 10 minutes under this load, the battery voltage read 12.4V.
My concern:
I'm unsure whether 12.4V at 10 minutes indicates a faulty battery , on my previous dry cell battery, it can still be reading 12.7v after 10mins . The battery is brand new, perhaps I should return it

So many assumptions in the last 2 sentences.........................................................., enough to cause gbas gbos between the two parties without concrete evidence!

bassdow:
why did the person who set up your system go for 8pcs of 200w solar panels ?

You also didn't state the model or type of inverter you using as not all inverters are able to shutDown on low battery hence you might have ended up using the battery till it's too low that it died.

Another is, you probably bought fake batteries hence reason it's weakk within a Year. Even if you buy Lithium based batteries, should you repeat same mistake, expect similar result.

It's obvious even your charge controller is PWM. WhoEver setUp that system for you PROBABLY cashed out

Odds not in your favour

tziz:
Guys, what are the odds of a roof leak after solar panels installation and has anyone here experienced that?

@ night?
1) What other load is on ?
2) WHAT IS THE DISCHARGE AMP CAPACITY OF THE BATTERY BMS?
Funny that that it's the inverter that is tripping. I will suspect that the BMS. 200amp discharge capacity @48v will be less than 10kw . Any load after, the BMS trips

Tdoctor:
Please can a 17kwh LFP battery be having voltage sag with a 1.5hp sumo pump? Anytime the pump comes on at night, the inverter trips. Inverter is 15KVA.
Any clues or insight will be appreciated.

Max solar voltage the Cc can take is 145v, hence max of 3 x400w panels in series in reality. You can decide to parallel another 3 but the harvest of that CC is capped at 1650w, hence almost 800w will be wasted.
Unless you want to add another Cc, you may be limited to maximum of 4 x400w panels at 2S2P.

osayuwamwen:
I have 60amp Felicity controller before will it support up to 6panel of 400 watt? Below is the screenshot of the controller

osayuwamwen:
Pump can run maximum of 3hrs
I have an inverter refrigerator that I wan to keep on always but I can power off if need be
I thought two 12v battery can be connected in series to gv a 24v or do you mean that not all 12v battery can be connected in series for 24v?

You have 2x400w panels already. If you can add at least FOUR more it will be nice. The more the merrier. This will ensure the battery is not stressed.
I am assuming you are not connected to the grid.

Supports 4S4P ( 4 in series and 4 in parallel) so yes you can combine to make 24 v

osayuwamwen:
This is the battery specifications pls help me check if it supports series to get 24v

4.19kWh & 15,000+ Deep Cycles】Our 12.8V 314Ah LiFePO4 battery offers an impressive 15,000+ deep cycles, lasting 30 times longer than traditional lead-acid batteries. Fully charged, the LiFePO4 battery delivers 4.19kWh of energy with nearly 100% depth of discharge (DOD), ensuring reliable power for your devices.
【Lighte & More Compact】Thanks to its high energy density, this battery provides double the usable capacity of lead-acid batteries while being 40% lighte. Weighing only 61.73 lbs and measuring 15.24×9.72×7.6 inches, it saves valuable space without compromising power.
【Built-in 100A Battery Management – Safe & Maintenance-Free】The advanced Battery Management System offers overcharge, over-discharge, overcurrent, and short-circuit protection, ensuring long-term safety and stability. A high-temperature cut-off prevents charging above 158°F (70°C), making it safer than lead-acid alternatives. Perfect for both indoor and outdoor applications.
【Up to 64.3kWh Expandable Energy Storage】Supports 4S4P configurations, enabling up to 51.2V 1256Ah and a massive 63.48kWh energy system. Ideal for home solar storage, backup energry, RVs, and marine travel, this expandable power solution meets high-energy demands effortlessly.
【Low-Temperature Cut-Off for Protection】The integrated Battery Management automatically cuts off charging in low-temperature conditions, preventing irreversible battery damage and ensuring longevity in extreme climates.
【Wide Applications】Perfect for home energy storage, UPS backup, RVs, campers, golf carts, trolling motors, houseboats, solar systems, digital/CCTV cameras, DIY projects, and more. A versatile solution for both recreational and professional use.

Key Features
Lead-acid replacement: 61.73lbs; 35% smaller, 60%+ lighte; 3-5x energy density; 10-year life.
100A Battery Management System: overcharge/overdischarge/over-current/short-circuit

osayuwamwen:
Can i power a submersible pump of 1.5hpower with this 24v inverter and two of this 12v battery I screenshot bellow ? If yes I already have 2 400watt panel how many 400watt panel am I adding to the two I have installed before?

Simple answer Yes BUT
1) How long you want to power the pump will determine the numbers of panels to recharge the batteries
2) Is the pump the ONLY thing that will be on at that given time?
3) Are you sure the battery can be connected in series to get 24v?

We have numerous ones. One for each building, most are 5-10kva in capacity.
I bought one independent 5KVA last year. That was for a specific 2.8kva machine.
You have to determine the load you want it to carry and determine the capacity.
I will advice that you give a good head room for future additions if you want to use a central unit.

FEGEITOK:
How big of a step down did you install at your place?

Best to run a dedicated 110v line/sockets , connected to a central Step DOWN transformer close to the DB. Have been using that kind of setup at a place for more than 20 years

ozone0801:
Electricians in the house, I have a question?
How best can one use electrical devices like TV, freezer that uses 110-120V in a house( I want to buy some appliances, that are all 110V, cos they're cheap). Is it by using plugin wall socket step up transformers? If yes, does this work well with inverter?

Is it possible to run a wiring for a new house such that you can have wall sockets with option for 110V and 220V appliances? If yes, how? Is it through separate conduit wiring, or use a central step down transformer from the DB.
Kindly advise.

finebois:
Hi
I am looking forwardtonhave this exact same setup. I have already gotten the inverter from fouani, remain battery and panels.
Please i have some questions since you have bee using it for over a year.
1. Didi you get the plynotech battery from Fouani.
2. If yes, does it come with cable that will be used to connect the battery to the inverter. I noticed the terminal of plynotech battery is different from growatt terminal.
3. How good is the battery, have you experienced any issue with it. What your honest reviewon the pylontech battery after a year plus of using it.
Thanks you

Got a pylontech battery few years back. Prone to bloating. Hightech packaging but does not deliver watt for Naira as most other less expensive but not less reputable products in the market. Will I buy another one ? No.
The only two deciding factors for me in choosing a battery pack are value for money and reliability and not reputation

Na gode!

Fakeisfake:
Yes I got it from Nnamdi here on this forum as recommended by my dear good NL TrippleDot now turned friend. Everytime I have the opportunity, I did like to thank these guys real good like demi gods as someone here said I make them feel.. Lol

Meanwhile I found a way to check and the pump is just 1hp which I plan to try out tomorrow Saturday.

If the inverter could do non-inverter AC of 1.5hp and other kitchen appliances, I think this pump would be Bravi too on the moduler inverter.

Please where did you get the 5KW watched from? Someone on this forum?

Fakeisfake:
Hahaha,

Nice question really but am not sure why the question if you are getting good backup and good use.

I have been using Sachet inverter for close to 4years - 5000W which is 5kw and it's serviced me more than enough at this point without troubling of its self consumption which is tremendously and significantly low with Tubulars until I got 8.3kwh lithium about two months ago and still serving.

Infact, one famous fellow here introduced me to it and he is using precisely same 5000w as we both stress it with microwave, AC, WM, fridge, freezer to it's max with no complain no regrets through and through...

How many have you used? And in what scenario?

bassdow:
Never really answered the question, other than just point out said Charge Controller is kinda [below] average normally

Depends on the amps you are charging with and the load on the 3.5kva inverter. If no load and the battery is being charged with very low amps, then yes.
The pressure on the generator will be :
1) Idle load of the inverter
2) The amps you set on the inverter to charge with.
3) Any other load you connect to the inverter

My experience is that the maximum it might be able to charge with will depend on the age of the engine of the generator.

Darey00:
hey guys, is it possible to charge 2 * 200ah batteries using Felicity 3.5kVA inverter with a 2.5kva/2kw generator?

I had sent the pack back to him 3 times before. Within a week of getting it. It did the same thing, I sent it back. A few weeks later, same issue. In one occasion, I even sent it back from the motor park because the BMS will not come on!!! From the motor park o!!

Later the guy started giving me attitude and made up my mind not to contact him again.

I have since moved on and getting packs I need from other people.

Recently got 3 packs from Valto, no issues. I have gotten 5 from him without issues

BigDickProblems:
Your best bet will be to contact the guy who built it. He will appreciate it too.

Some cells were reading 0v, some read less than 1v and most between 1-1.5 and one read about 2v. I had only a 12v 6amp charger available. The charger had repair mode for lead acid batteries and was forced to use it. I broke the pack down to 12vs and connected the pack to the charger without BMS just to see if there is any hope for the cells. The charger will not initially charge but the repair mode woke them up and I have the four packs at about 12.3vs over the next 6 hours.
I have since disconnected the charger and will see this weekend if there how much of charge they are able to hold

More pictures .
The BMS was burnt and had refused to connect earlier by Bluetooth BUT the balancer connected!!!
Also 14 cells has absolutely no means of identification while two with identification seemed to have been patched on to the pack

Good day house. I got this locally assembled pack ,designated as 48v 6kwh, about 3 years ago connect to a 2.5kva Felicity inverter and a 60amp CC. It was a standalone off grid system connected to 1800w panels.
I was called that the system just shut down about a month ago. It will not take a charge but still kept the CC on. The display on the battery indicated 38v and the CC automatically reverted to 24v and was displaying OVER VOLTAGE disconnect. I was not able to get to the location until two weeks later. By that time the battery displayed 17v! Unfortunately, I had lost some pictures taken before opening the box but kindly see some pictures.