₦airaland Forum

NpvnStar:
lol... till today, they never sent me back the stabilizer nor sent me a different one. they asked me to pay about 150k last year, so that they'll give me another one. A & E are the worst. I declined. after 2 months, I agreed to pay but they said prices have gone up. and since then, no more communication.

I got angry and started learning the intricacies of the stabilizer. Since i am tech savvy myself, i was able to find out the important blueprints and protective components needed to build the servo stabilizer correctly without cutting down on costs on inflicting massive gains. I further liased with a chinese manufacturer and we built a 30kva, which I custom branded and sent to nigeria, entire cost was about $400 roughly. and i've been enjoying that one for months now.

A & E had put only one temperature sensor and even put it in a place where it was unimportant. thereby the system would not shutdown even when the load surpasses the capacity.

they also lied about the capacity of their stabilizer. you could barely even do 50% of what they said. i yes i know about the variations based on load.

Anger is good when our into productivity..lol

osayuwamwen:
I don't understand what you mean by off grid unit ,
my former inverter that was killed by lightning was not an hybrid inverter but it can be charged by grid power and my house is connected to grid power

Mine has no connection with grid at all. Similar to this sachet one you just got.

I have a deal I'm cooking and would like to know if you are interested.

Original decommissioned canadian panels.

Capacities are up to 370W per panel.

Full details will be available later.

If you would be interested kindly indicate.

Thanks.

osayuwamwen:
Yes sure, the inverter got delivered to me today so far it look nice very quiet when working, the fan is temperature control it only comes ON on heavy load and still doesn't make much noise compared to my previous inverter and it is way more power efficient the inverter they make me feel like my 220ah battery don double to 440ah, the watt display on the screen is not too accurate.

As for sellers here the issue is that they don't add prices along with what they are selling, I don talk am B4 put yr price along with what u are selling so that potential buyers can easily see if it is within their budget, not every serious buyers get time to call or message for price, AliExpress, jumia and jiji are all market place with different sellers prices are place along with every product u don't need to message a seller privately to get price of wat u want to buy.

Nice one. Thank God it came and is performing well.

Betnomore:
Bro ow far. I'm experiencing data throttling down to 1mbps once i reached 1tb of data usage on the airtel 5g router. Have you experienced such because it shouldn'tbe as there is no FUP. Please do let me know your experience with such issues.

Abeg is this 5g router thing available? I may need to go for it as my current subscription plan is sucking me dry.

Drop digits let's relate on Whatsapp biko

EduTechTainMent:
You mean the dc cable cable can charge the battery when there is grid power supply? Can you pls elaborate. I don't seem to understand your post.

Yes, it the battery bank is strictly connected as a backup. See attached my own unit's battery cable left disconnected since I didn't put a battery bank there. Been running since 2022 with no issues, the only thing I noticed is that the wall controller doesn't work so I use the remote only.

EduTechTainMent:
It was connected by an electrician using both AC/DC. So it auto switches between both ac and dc seamlessly without any need to turn it on when grid power outage.

I don't really understand, because normally the wall controller has two cables that is supposed to be connected to a battery bank. Once you leave those cables disconnected it works simply like an AC powered DC fan. Hope the electrician followed the connection diagram in the manual

Ooreofegrace:
Una weldon for this dept.. Anyone with 1st hand info abt this battery.. Anyone done use am before. How good is it..? And hope no be fake (upgraded tubular battery)..? Thanks.. Will be in da comment section reading..

I've had my sights on it for a while too. If you do get it please let me know how it performs.

Dam5reey:
Jumia.

Nice. Please share link if available.

ajabani4allah:
I got 3000w Satchet inverter from AliExpress sometimes ago but now the cooling fan comes up immediately I power it on and it makes too much irritating noise and gets hot quickly, pls what's the solution for this?

Probably worn out. You can use a syringe to apply lubricant into the motor to reduce the noise. As for the increased run time, I no really know.

emyfine08:
For 2years now I don't know what is called NEPA the only problem I have is lightning I have called my engineer he removed the old Surg arrestor and put new one and rechecked the earthing still it happens again I have thunder protector for the main building.I need help seriously my people things are hard this time around.lf na to guide me how to fix some connections I will appreciate

Are your panels earthed?

nnadychuks:
Please and please:
Avoid solar generators at all cost. I mean a solar component that has both inverter and controller affixed in one board is total rubbish.

Why I’m saying this…

My qasa solar generator just explode on its own. It let off smoke 💨 and then boom 💥
Thank God the incident happened while I was at home, otherwise “Na only God know”

Now I’m looking to purchase an inverter+ controller (1500w -2400) if anyone has these items, used or new please quote me

I have some units. Please reach out.

jonescosmos:
Charge Controllers does not share Strings/Arrays. It will not work.

Almost all MPPT controllers do a quick Voc measurement to determine where to start their MPPT search. They start their search 75% to 80% of Voc.
If the two MPPT's aren't in sync with each other, it might not work because they will fight over control of the circuit. PWM controllers should be fine in most circumstances But I wouldn't recommend it in either case. If they are not synced in parallel, they WILL have problems tracking. They will fight each other for control of what voltage and current to run the array. Split the array equally and run separate wires to each charger and combine you battery banks together please.

With two PWM CCs you might get away with it, but the power distribution would not be perfectly equal.
But with two MPPT algorithms independently varying voltage and current and expecting to see only the results of their own changes, this your scenario is not likely to work.

Neither CC would be able to see the Voc end of the panel output curve.
A quick and dirty MPPT that just looks at Voc and sets the operating point at 80% of that would cause a spiral to zero voltage and both CCs would lose.

Never should you have two MPPT controllers connected to same string of panels unless the two MPPT controller functional control can be locked in synchronized unison to act as a single MPPT controller.

Without being synchronized they will just fight each other. At the least, they will just screw up each other's attempt to find MPPT point.

Some MPPT controllers do quick heavy load significantly below Vmp and another a little lower than Voc to measure two power profile slopes and project the two slopes intersection to zero in on Vmp point quickly. It is impossible for this to work if there is another parallel MPPT controller doing its own thing.

Once an MPPT controller zeros in on MPPT point it continues to wobble around a little to detect and track changing MPPT point due to illumination level and temperature. Again, another parallel MPPT controller will interfere with this tracking.

I agree. Charge controllers aren't just passive electrical equipments, but are very active and dynamic. Almost alive even. Lol

HeavenlyBang:
I did, it just draws from battery and panel output doesn't rise.

It's bizzare, since after about an hour everything suddenly went back to normal.

Slow MPPT tracking can do that.

osayuwamwen:
I think dc breakers are suppose to serve as protection but there are some lightening that doesn't pass through the panel or breakers they go straight into the house and destroy any electrical appliances that is on, I have been using my inverter for the past 1year even during raining days I have never switch off except wen it goes off during low voltage or wen nepa bring light, I have only change the breaker btw the panel and controller once, I am talking from experience I might be wrong though

Breakers monitor current. Lightening strikes usually have astronomically high voltages and current. But I think it's the high voltage that does the damage.

EduTechTainMent:
What's the best LFP setting for powmr 60A cc? Or default would do just fine.

Secondly, you recommended use of Qasa AC/DC ceiling fans which works absolutely great. However I noticed it "back charges" the LFP batteries. I mean it also contributes to charging current of the LFP battery. Have you noticed this? Pls note that I am not the only one who observed this. Infact my attention was called to this by some of those I recommended the qasa ceiling fan to. I initially doubted it but I can now confirm this is true.

Is there anyone else who is experiencing this on here?

Eh! 😳...I know they have a DC cable meant for connecting a battery and it can charge the battery when there is normal power supply.

How was your fan connected?

ti4c:
Hey guys, hope the holiday is going well.

I posted here a few months back for info and advice on budget, I appreciate your replies.

However, I need your advice as I have upgraded my solar battery and panel but it's not doing what I want in terms of power supply.

I upgraded it this Monday to a second hand mercury 220 ah battery(one year used), 400W panel and 30A charge controller(which I find useless cos I don't understand how to really read it).

My major use of the power is for my laptop (90W) cos I work from home and I need to be able to cahrge it at least twice a day. No fridge or TV, just the laptop, DC fan, phone, and bulbs.

During the day it charges laptop fast and carries the fan without issues.

The problem is that the battery doesn't last after sun goes down. Charging phone doesn't seem to do anything to the battery, it's when I plug the fan or laptop after sun down, it will immediately start blinking indicating low battery. I feel like the battery has lost its strength or something else I don't know.

For today, I charged my laptop and phone with it around 12 pm, by past 2pm NEPA brought light, I turned it off, I didn't use it again till 9 pm and once I plugged the fan, it started indicating battery low again, so I removed the fan. But right now my laptop is fully charged but still plugged in but it's not blinking but once I plug the fan it starts indicating battery low... I didn't understand how that is working.

I need your expert advice because I intend to return it on Wednesday and get a 120 ah new gel battery(that's what I initially wanted to buy).

Thank you!

You are wasting scarce funds.

For your needs, I'll suggest you get a power bank. DC power is more efficient and lithium batteries do the job better for this use case.

All your loads are DC powered, so why waste power with an inverter in the mix?

icjunior:
Yes,second hand...he bought like a month ago.
Thanks,so anybody that charges batteries can change electrolytes too?

When tubular batteries go bad, usually the irreversible chemical in on the plates not the electrolyte. It is not advisable to change electrolyte of a used battery, you rather top up with distilled water as the case may be.

Did your friend observe the 50% DoD rule? Where the batteries charging well while in use? How far gone where they before he purchased them.

My advise is to sell them off as scrap, add money and get lithium batteries.

osayuwamwen:
Yes the reviews are good, it has all the 7 to 8 basic protection but na to they off am and off all my breakers once weather change sure pass, I don learn lesson in hard way

This looks like an off-grid unit. I run an off-grid unit as well ( about 2 yrs and running) and I haven't had any thunderstorm issues. Someone earlier stated that if your system is purely off-grid, you MAY have some immunity from lightening strikes.

My rig is not earthed, and my house earthing seems compromised, but so far so good.

I have a knife switch that I physically use to change to grid if I need to.

osayuwamwen:
The repairer later told me they are go to change the board he said the board is 90k while he's own service fee is 40k, I just vex go oreder a new inverter from AliExpress for abt 109k or so picture below is the new inverter I ordered 3600wat but it actual power is 1600watt

Hope you read user reviews about the unit o. BTW, some NL here sell similar units, make we de encourage our guys here too.

The inverter display looks nice sha. 😊

Share the product link if you don't mind

cluewebhost:
If you're using chrome on desktop in my sig I made an extension to block posts like this so you can browse in peace

Technology is sweet sha... 😂

Dam5reey:
It is a free world, I search for the best deals for clients Powmr is the same as Sako,SMS or Welion.
Anyone that is available works.
See attached, an only casing differs

Hi, where did you get the PowMr inverter from?

I thought I would find pragmatic solutions in the comments section.... disappointed

RickyM:
Thanks for the tips…The freezer comes with fan that blows the heat out from the compressor region. Do I still need to add another fan to blow the heat exchange coils?
Just as recommended from a post here that some space has to be given away from the wall…I followed that and even a bit more (10inches) away from the wall.
I’m running it with solar so the inverter is putting out constant voltage for sure. They said it can do 140-260V I guess and the output voltage of the inverter is 220+

If it's with an inverter,then the voltage side is ok. Yes still out a fan to blow the evaporator coil, and see if there is an improvement in freezing time.

compunigeria:
Wow!!! All the plenty "Canadian solars" they have been showing me here are less than 400w and far from the description above. Thanks for the heads up o. Chai!

you just dodged a bullet.

😢

jpride:
I'm thinking of buying either Odyssey or Nisan Quest, Mazda MPV or Ford Windstar for transport business, but my first preference is Odyssey. Am I making a mistake? Does it have common Honda leg problem? Please advice me

Hi, did you eventually buy it? What was the experience

Kenmatt:
There is, and it's even more nutritious, satisfies more and sustains more.

But I won't say it here, if I do, Nigerian traders a "Shylock" in nature.

They will inflate the price tomorrow morning outrageously.

Talk abeg

SMARTMOTORS:
Stop throwing Banana peels away..gather them, dry and grind it..... It's a banger!!

Where you see money buy banana??

RickyM:
Running it 24/7 for four days, it’s not able to freeze 30 pieces of the water tied in it even though they claim it’s freezing capacity is 32kg/24hrs

Ok. Maybe you can
1. Check where you installed it and provide improve the ventilation around the heat exchange coils at the back. You can add a standing fan to blow over it, move it away from the wall or enclosed area. These may help improve heat transfer and aid faster freezing
2. Check if the voltage supply to it is constantly at the recommended value. An inverter system can help out your mind to rest with this, or a good stabilizer.

Wish you the best.

justcallmenuel:
22 units of 15kwh 48v felicity lithium battery ready for delivery to Kano state.. Call/WhatsApp me on 08168986461

Thank you Alhaji Babaginda for the patronage, may God bless you.

We deliver to any part of the country as distance isn’t a barrier with us..

Call/WhatsApp- 08168986461

Oh boy..wow...you suppose do give away for this thread. 😊