₦airaland Forum

isangjohnson:
This analysis is applicable to those who want to freeze their rooms with 16°C temperature.
My parlor AC is 1.5hp consumed 1.2kw and I used it mostly during the day at 20°C.
My room AC is 1hp consumed 1kw and I used it mostly at night with the temperature range of 26°C to 28°C consuming 500w max and I still woke up to see 50 60% of my battery left.
We know how to manage RE.

What is your battery size?

Sapiosexuality:
But how often, in your experience, do they break down.

Let's just say the ones I've seen never broke down as care is often taken to do proper wiring and provide protective device and provide a good electrical earthing. With these in place and proper citing of equipment in well ventilated environment, there is no failure yet.

icjunior:
Yeah,the world is moved onto hybrid everything.
But then hybrid inverters are more expensive ain't they?

They are cheaper when you come to think of it.

Sapiosexuality:
VOC? What does this mean? How do I know where mine stands?

Open circuit voltage ie the voltage the pv will deliver on no load. Thank you

clogogo:
Hello House,

I will be moving to Nigeria for 2 months and working from Nigeria, I would like to get a solar panel setup that would provide at least 12 hours for my laptop, phones and 1 2HP AC.

Thank you.

The 2HP AC you have will 4x the cost.

futurenix:
I have no idea bro. Those service center guys refused to release it to me.
Took the battery inside and brought it back outside already fixed.

Lol. They always hide this. Thought you were able to see it. Thanks

Trippledots:
I think it's even square wave signals those UPS output.

You may be right. But most people are just happy to have power that they don't even care the purity of their power supply.

futurenix:
Pls anyone with info on where to get this fuse model? 150A

Hi, this fuse current is 150A, any idea the voltage?

Hero2t:
What brands, please?

My Schneider does this. It just goes off. A simple restart brings it up. The earth is bad, checked and the earth resistance is 15 ohms. My area is tiled. Still had to break that beautiful tile to fix this earth issue

bassdow:
Please when going for any inverter lower than 1KVA, kukuma just buy used UPS make electrician or solar person wey sabi am help you convert am.

Except of course Money ain't your worry + you don't mind.

MeanWhile, when looking for used items, rather than wasting time asking in here, just go to jiji . ng

Most UPS are modified sine wave inverters. That's just the major minus. Every other thing na plus.

icjunior:
939w from a possible 950w(2*475w) jinko panels from fouani with 60A powmr mppt cc

@linnov8

Was able to screenshot 938.1w from the the video I made while checking.

That's an outstanding performance. Founi is doing well.

Juror:
You mean P elicity

Thought as much

Na why I ask.

ewizard1:
I detest that term "fuel-less generator"

It's usually used by scam artistes to finesse their audience

Danibestguy:
Thanks a lot for this. That's why we have people like you on this platform to guide people like us.

I quite understand the basics of electricity and I'm moderately comfortable with small DIY projects. I've just never been in a position to top balance a cell before hence my question to experienced bosses like you.

To be sure I understand well(I'm a slow learner), the converter will convert my 12/24v charger(input) to any adjustable voltage(output) of my choice?

Also, does this converter work like a DC transformer?

The DC-DC converter I showed in the original post has input voltage range of 5-40V and adjustable output voltage range of 1.2-35V

DC-DC converter as the name implies converts DC voltage to another value of DC voltage. Most of the converters has a fixed output voltage eg 12V to 5V converter eg your car phone charger. But in this instance I found the type that one can manually change the output voltage. So to quote you it is sort of a "DC voltage transformer".

Danibestguy:
Do you mean when the highest charged battery Is full? And how does the converter work? Does it transfer charges from the highest to the lowest?

Also for the converter connection, is the inverter/external charger going to be connected directly to the converter or to the battery?

If you don't, have basic knowledge of DIY, you may need someone that does, for this.

Lemme still explain how this should work. To top balance batteries means to charge batteries in such a way that all the batteries are equally charged to the same voltage.

To make this happen, you'll have to connect all the cells in parallel and charge till the charging current goes to zero.

To connect this DC -DC converter, your charger is the input, and the output (after adjusting voltage to 3.4v) goes to the cells you want to balance.

Find attached the LiFePo4 cells being connected in parallel pending top balancing.

Please do not attempt any of this stuff by yourself if you don't have the basic knowledge of batteries connection and electricity.

Danibestguy:
Good evening bosses. Please is there an alternative to top balance new lifepo4 cells? Or how can I top balance without buying a bench dc charger as I cannot afford that for now.

If there is an alternative, I'll be very happy to hear it.

Charge in series with your regular charger until battery is full. Remove charger and parallel your LiFePo4 batteries.

Get a cheap DC-DC adjustable converter and you are good to go. Use your regular 12v or 24v external charger as input. Add a small fan if the converter runs hot.

justcallmenuel:
4pcs of 220Ah felicity tubular batteries
1pcs of 5kva felicity hybrid inverter ready for delivery to Benin… Call/WhatsApp me on 08168986461


Distance isn’t a barrier!!!

Please which day did Felicity start producing Tubular batteries?

brightk:
Genex sells jinko 555w for 192500. So f****king expensive

Founi sells for ₦161,600

Difference is like night and day.

mvphenryeto5:
Bro what is 2s 3p

2S= 2 panels in series
3P = 3 panels in parallel


Let me use the diagram below to illustrate 3S 2P

Panels 1,2, 3 are connected in series = 3S

Panels 4,5,6 are connected in series too = 3S

Then there is two parallel. Panels 1,2,3 is in parallel with Panels 4,5,6 . Notice the parallel connection between Panels 1 &4 (and panels 3&6

Panels in series are connected + to -

Panels in parallel are connected - to - and + to +

PV Plus and PV Minus goes to the charge controller PV + and PV - respectively.

Madrush:
Thanks. I ended up paying the 306k. Just wasn't ready for the hassle. Big mistake not checking the shipping method before paying. Never made that mistake in all my years with Aliexpress. Never again.

You are welcome

Obnoxious2001:
Omo e tuff.
Una no dey sell second hand Wires

Usually leftover wires, wires removed from site after a decommissioning, and lastly wires stolen from site. There is secondhand wires often with firsthand wahala.

Dam5reey:
He is doing 6p based on the PV Voltage on the screen... It shouldn't even get hot as there is not much conversion...
3s2p/2s3p maybe hit or miss.. he can try his luck...

Just checked again. Thought the temperature is voltage. Lol.

Some installers are crazy. Why would an installer opt for 6p after swapping out a PWM? THAT'S the problem then, Kendzyma get your installer to go and change the configuration to either 2s 3p or 3s 2p. He did 6p which is the reason the charge controller is running very hot, low voltage and high current are often recipe to high temperature. Also your MPPT won't work well at such low voltage. That'll explain the poor yield too.


That controller is not bad, I have friends using it without issue, just remember to set the battery type you are using

Kendzyma:
Hi Everyone. I have a 2.5kva setup with 2 12v 220ah tubular batteries (24v system), I also have 6 300w panels connected on series (not sure, installer did the whole set up, but the said it's in series) .

Issue is, I have been using a pwm 60amp cc with it for a while now that works fine, just decided to upgrade to powmr 60a mppt cc which I installed yesterday, but I have been getting an abnormally high temperature from the cc, like 60+, which the highest I have gotten from pwm was around 40. And I also noticed a reduced battery time when I am on battery compared to when I was using the pwm...


what could be the reason for this temp increase and reduced battery time?

From the PV voltage I suspect that the connection was 2s 3p. See if you can do 3s 2p to reduce the current coming into the charge controller. Would've asked if the cooling fan is working, but this design doesn't have any.

Olamak1:
Can somebody tell me what's happening on Binance lately? P2P section is no longer accessible again (blanked - out) . Truly, the news had it a couple of days back that the FG planned to clamp-down on the platform. Has the mission been finally accomplished?

Try kucoin

jikaseo:
Yea, I've got 3 batteries at 3 different occasions and they all didn't even last one week. They sell fake and I'm tired of wasting money.

Go to jiji and search. Chat up seller. Get someone close to pick up product and pay. I wish jiji has escrow services.

jikaseo:
Hello house.. I trust we are all doing good and I must salute every solar energy professional and users in this forum for their contributions. I've learnt a lot being here.

Please I would like to ask if anyone knows where I can get very durable batteries for rechargeable fans. I need a 12v7.5A, 6V4.5A. this is very urgent.

Either ready made or DIY, as long as it'll be durable. Thank you all for your contributions.

Check any local market that sells things like electronic parts, fan repair area for these batteries.

zeestone99:
Starplus 220ah batteries available

Price - 295k

Call/chat - 081173nine8294

This battery is now almost 300k? Interesting

mvphenryeto5:
Please has anyone used the mopower inverter? Is it a good brand?

Not bad.

oaice:
Please what is the best specification of solar panels to get for a 12v 115amps battery. I also want to be able to power a hot plate rated at 1000w during the day when the sun is up. I want to go completely offgrid. Need inputs from everyone please. I am tired of Nepa. I have the battery, intend to get the Inverter and Solar Panels.

A 12v 115ah battery has a total energy of 1380wh which if it's a lead acid battery has a 50% usable capacity, that is 690wh. If you are to run a 1000w hot plate on it it'll last for 690/1000= 0.69 hours or 41 minutes in theory.

Conclusion: It's not recommended to run a hot plate off such small size of battery. Also it'll be hard to get a genuine 12v inverter that can handle such 1000w load in Nigeria.

Oyetboy:
do you pay custom charges if u order a phone on aliexpress now?

You may or may not. Logistics and duty payment is not an exact science.

easyyoke:
Abeg Veterans abi experts in the house. If you are carrying 80amps from your charge controller output to your battery. What size of wire do you use. You guys with 80A, 120A controller for a 12v system. My controller and battery are quite close to each other. This my online calculator is telling me 26mm. How will 26mm wire enter this tiny hole in this charge controllers. Not sure I am doing my calculation right

What type of charge controller are you using? Can we see pictures for PV wire and battery connections on the charge controller?

jboixxx:
[color=#0000ff]It's a risk worth taken and probably the best option. Worst case is for him to lose the shipping fee. [/color]

Yes. I did it then with NIPOST EMS, asked to pay 70k in 2019 for one Xiaomi Mi 8 Lite Phone which was roughly $230. I ignored them and they shipped it back. Got refunded.