NewStats: 3,263,838 , 8,181,591 topics. Date: Sunday, 08 June 2025 at 09:03 AM 601b1l

BigDickProblems:
Please I am throwing these questions to all experienced folks, kindly help me with your knowledge:

My s are not giving me a good output using a PWM, now I just got a Felicity 30AMps controller and it’s even worse. Below are my observations today

I have 2pcs of 180Watts 12/18V with a max current of 10Amps. Parallel connection.
Below is what I got after trying the MPPT to see if there will be any improvement

Felicity MPPT
1.0Amp 14V =‘14Watts @8:30am
1.4Amp 16V = 22.4Watts @9:00am
2.2Amp 15V = 33Watts @9:30am
2.4Amp 15V = 36Watts @9:38am
2.6Amp 15V = 39watts @10:00am
2.8Amp 15V = 42Watts @10:20am
3.1Amp 16V = 49.6Watts @11:00am
3.4Amp 15V = 51Watts @11:20am

With PWM: I quickly changed the connection back to PWM
3.8Am 14.1V = 53.58Watts @11:25am

Basically, what my observation is telling me is that the PWM is better. But overall, something is wrong with my system, and I don’t know what it is. This is 14% of my output I am getting.

The sun is literally shining on top of my . I am getting tired. Please what could be the problem? Could it be the cable used? Below is the image of the cable:

Ok guys, I just figured out the issue. It’s from the Twin tech . I have been duped of my hard earned 45k.

This is what I found out after testing the 2 s separately:
Single Connection at 1:20pm
Africell
20Volts 3.8Amps =76Watts
Twintech
15Volts 0.6Amps = 9Watts
Connecting both
15Volts 3.4Amps = 51Watts

Notice that Africell is giving 42% output while the Twin Tech is not significant. Now combining the two in parallel affects the entire system to a very low output. Now I am certain of the issue.

People are wicked o.

Ok guys, I just figured out the issue. It’s from the Twin tech . I have been duped of my hard earned 45k.

This is what I found out after testing the 2 s separately:
Single Connection at 1:20pm
Africell
20Volts 3.8Amps =76Watts
Twintech
15Volts 0.6Amps = 9Watts
Connecting both
15Volts 3.4Amps = 51Watts

Notice that Africell is giving 42% output while the Twin Tech is not significant. Now combining the two in parallel affects the entire system to a very low output. Now I am certain of the issue.

People are wicked o.

HeavenlyBang:


Voltage obviously isn't the issue since you already get good voltage from both the MPPT and PWM. The problem is you're getting 3A from a setup that should be yielding almost 20A.

Just look for an electrician with a multimeter and have him take a reading in full sunlight.

[Ok I just figured out the issue. It’s from the Twin tech. I have been duped of my hard earned 45k.

This is what I found out after testing the 2 s separately:
Single Connection at 1:20pm
Africell
20Volts 3.8Amps =76Watts
Twintech
15Volts 0.6Amps = 9Watts
Connecting both
15Volts 3.4Amps = 51Watts

Notice that Africell is giving 42% output while the Twin Tech is not significant. Now combining the two in parallel affects the entire system to a very low output. Now I am certain of the issue.

Do they return solar s? It’s not up to a month old.

HeavenlyBang:


You've tested output directly?


https://www.youtube.com/watch?v=oV8SnZJextc?si=wjMG0pTCfXPIftDG

I don’t have a multimeter, it’s quite expensive. The meter I have can only measure voltages. And their voltages are ok so far so good.

Debroslink:


I knew it is Africell and Co ashese are not efficient s. Please don't blame the mppt.

If it’s from the , which can your prescribe for the same 12volt system?

Debroslink:


I knew it is Africell and Co ashese are not efficient s. Please don't blame the mppt.

It’s from the s right?

Debroslink:


What is the name of your solar ?

One is Africell, the other is TwinTech

Please I am throwing these questions to all experienced folks, kindly help me with your knowledge:

My s are not giving me a good output using a PWM, now I just got a Felicity 30AMps controller and it’s even worse. Below are my observations today

I have 2pcs of 180Watts 12/18V with a max current of 10Amps. Parallel connection.
Below is what I got after trying the MPPT to see if there will be any improvement

Felicity MPPT
1.0Amp 14V =‘14Watts @8:30am
1.4Amp 16V = 22.4Watts @9:00am
2.2Amp 15V = 33Watts @9:30am
2.4Amp 15V = 36Watts @9:38am
2.6Amp 15V = 39watts @10:00am
2.8Amp 15V = 42Watts @10:20am
3.1Amp 16V = 49.6Watts @11:00am
3.4Amp 15V = 51Watts @11:20am

With PWM: I quickly changed the connection back to PWM
3.8Am 14.1V = 53.58Watts @11:25am

Basically, what my observation is telling me is that the PWM is better. But overall, something is wrong with my system, and I don’t know what it is. This is 14% of my output I am getting.

The sun is literally shining on top of my . I am getting tired. Please what could be the problem? Could it be the cable used? Below is the image of the cable:

Please I am throwing these questions to all experienced folks, kindly help me with your knowledge:

My s are not giving me a good output using a PWM, now I just got a Felicity 30AMps controller and it’s even worse. Below are my observations today

I have 2pcs of 180Watts 12/18V with a max current of 10Amps. Parallel connection.
Below is what I got after trying the MPPT to see if there will be any improvement

Felicity MPPT
1.0Amp 14V =‘14Watts @8:30am
1.4Amp 16V = 22.4Watts @9:00am
2.2Amp 15V = 33Watts @9:30am
2.4Amp 15V = 36Watts @9:38am
2.6Amp 15V = 39watts @10:00am
2.8Amp 15V = 42Watts @10:20am
3.1Amp 16V = 49.6Watts @11:00am
3.4Amp 15V = 51Watts @11:20am

With PWM: I quickly changed the connection back to PWM
3.8Am 14.1V = 53.58Watts @11:25am

Basically, what my observation is telling me is that the PWM is better. But overall, something is wrong with my system, and I don’t know what it is. This is 14% of my output I am getting.

The sun is literally shining on top of my . I am getting tired. Please what could be the problem? Could it be the cable used? Below is the image of the cable:

Ty207:


but pwm controller does not show Amp naw it only show voltage...try to get a multimeter and read the amp directly from ...the two cant be bad.. this morning am getting 5.1 amp from my 200w africell
secondly 9am is too early try it around 11am

Hello, these are my observations so far so good. MPPT didn’t help either. I have 2pcs of 180Watts 12/18V with a max current of 10Amps. Parallel connection.
Below is what I got after trying an MPPT to see if there will be any improvement

Felicity MPPT
1.0Amp 14V =‘14Watts @8:30am
1.4Amp 16V = 22.4Watts @9:00am
2.2Amp 15V = 33Watts @9:30am
2.4Amp 15V = 36Watts @9:38am
2.6Amp 15V = 39watts @10:00am
2.8Amp 15V = 42Watts @10:20am
3.1Amp 16V = 49.6Watts @11:00am
3.4Amp 15V = 51Watts @11:20am

With PWM: I quickly changed the connection back to PWM
3.8Am 14.1V = 53.58Watts @11:25am

Basically, what my observation is telling me is that the PWM is better. But overall, something is wrong with my system, and I don’t know what it is. This is 14% of my output I am getting.

The sun is literally shining on top of my . I am getting tired. Please what could be the problem? Could it be the cable used? Below is the image of the cable:

Just as my name implies. I have problems with girls due to my size. Though many won’t like my name.

Trippledots:


What's your cable size and distance from s to cc? orientation? So many things can affect PV harvest.

The cable is thick, I am not sure about its size. It’s not more than 5meters to CC. Orientation is perfect as sunlight is usually directly over the PV.

I just got a FELICITY CC this evening. I will see if there is any change (the only noticeable thing is that, instead of draining some power from battery during the night-morning time, it rather turns off when the sun is gone), although I won’t be at home tomorrow to observe anything. Maybe by next tomorrow, I’ll let you know how far.

Ty207:

pls what is the name of the cos am trying to get another this weekend and secondly do you mean 18v 10a? cos 190w cant get 38v 10a

What are your readings these dusty days?

Don’t worry, one day, you’ll shoot yourself in the ass, people of Nairaland will realize that this also belongs to the dumbest and most foolish Nairanlander I’ve ever seen; MrCock.

dollarnaira:


orientation, air flow, and cable length are super keys to output generation. My test pv of 190w bought used few years output average of 7a on a good sunlight. Pv : 38v 10a max and surprisingly during September before this dusty days, I experienced 9.7,9.8 and 9.9a max. I was surprised to see this though that I had to use a clamp meter to confirm and it was affirmative......Keeper's series powmr 20a mppt.

Well oriented, a short cable length: my house is a bungalow and the whole roof to my charge controller is not far at all. This is today’s reading using my PWM CC:

Reading by 9:00am and few minutes later
Twin Tech 12.5V 1.0Amp = 13.75Watts
Africell 12.5V 1.0Amp =12.5Watts
Parallel Connection 2.6Amp 12.9V =33.54Watts

Reading by 9:26am
Africell 13.0V 1.8Amp = 23.4Watts
Twin Tech 12.9V 1.5Amp = 19.35Watts
Parallel Connection 2.9Amp 13.2V = 38.28Watts

What do you think of this for a 360Watts

Ty207:


are you sure your multimeter is okay?, the problem might be from cable...disconnect the cable and read from directly... you should get nothing less then 4/5amp from each

It’s a PWM charge controller that shows the readings.
This is from this morning:
Reading by 9:00am
Twin Tech 12.5V 1.0Amp = 13.75Watts
Africell 12.5V 1.0Amp =12.5Watts
Parallel Connection 2.6Amp 12.9V =33.54Watts

Reading by 9:26am
Africell 13.0V 1.8Amp = 23.4Watts
Twin Tech 12.9V 1.5Amp = 19.35Watts
Parallel Connection 2.9Amp 13.2V = 38.28Watts

This is way too low for a 360Watts . What could be the issue here?

Ty207:

am using one 200w africel and am getting 5A,....so i expect the 2 should give you 11A in series......pwm controller is okay for 12/20v but it is a waste for 36/42v cos the excess voltage is waste....if your is 36/42v i will advise you to go with mppt.

i need 200w 12/20v ...08036432383

Yes they re both 12/20V s with max current of 10. However the highest current I get from their parallel connection is around 4.5Amps-5Amps. The highest voltage is 14.8Volts.

I just did a quick test on both s separately around 4:50pm today. Here are my observations:

Africell 13.5V, 1.1Amp = 14.85Watts
Twin Tech 13.5V, 0.9Amp = 12.15Watts
Parallel connection of both 13.6V 1.6Amp = 21.76Watts


The connection should have given me 27Watts, but I’m getting 21Watts, which is very bad. What do you think of the whole thing?

fuckboys:
our light here is terrible, I’m 90% dependent on solar now, we barely get 2hrs of light here. Sometimes there’d be light but I’d still be running from the inverter cos i know the light won’t last.

Great! Enjoy Bro.

fuckboys:

Mine has been very positive bro, I've upgraded twice cos my power needs kept increasing.

Everything I've upgraded so far.

Initially bought the 718wh system before upgrading to the 1280wh system

Upgraded the 60a pwm that came with the 1280wh system to a 30a mppt controller.

Upgraded the 1kva pure sine wave inverter to a 1.7kva mopower pure sine wave.

I run all appliances now during the afternoon including fridge and reduce load to a max of 100w once it's 7pm.

One thing I commend josh for is his batteries, mehn that battery is a tank. He has been in the game for so long and his battery builds are high grade.

My battery holds at 13.0v for like 6hrs of consistent 100w load. That's crazy. I've never ran this battery down except one time while I was still on the pwm controller.

Wow. Great! Omo I actually like the fact that I have light 24/7. Only one night that this system died, and I was really afraid it was always gonna be like that (I carried too much load). I charge all my appliances during the day too, and use light loads at night.

fuckboys:

"PRCT " with red steady light on the display.

Hi Bro, what’s your experience so far with Josh Product?

Mine has served me well enough for the reason I bought it so far. Except the issue of PWM not being efficient and my 360Watts outputting just 80Watts, I don’t feel it much since I have Nepa.

janeedema:
What an advice to give to someone.

You shouldn't out your experience as a law anyone should live by.

Being unfriendly towards people doesn't pay anyone. Drawing boundaries is key to fostering healthy relationships.

You never can tell when he would need help from his ‘poor” neighbors in the ‘poor’ environment.

If it was a rich environment, his neighbors would be his friends, I presume.

Life is a gift.Use it judiciously and make impact.

Thquote author=BigDickProblems post=133282733]

As a freelancer, look for a cheap area, get a cheap Solar installation that can be charged also with Nepa, and that can run your laptop for long hours and power your fan, gadgets and other low energy appliances. Be careful of your neighbors too (since it’s a poor environment), they are not your friends, don’t form any familiarity with them (only good morning, afternoon and good evening) and just mind your business. Cheaper food and all that are some of. the advantages.

Your neighbor not being your friend nor not forming familiarity with your neighbors does not mean you are an enemy. You will only be a misery to them, it does not mean that when your neighbor’s house is burning, you won’t go and help them out and vice-versa.

I can see you are inexperienced or probably those type of neighbors I actually had in mind when advising the OP.

THELATTERMAN:
I'm planning to relocate to Abuja next month, that is January 2025, after completing my undergraduate study in one of the neighboring states. I'm confused about the best, most affordable place to stay.

My major needs are security, electricity, nearness to town, and affordable housing. I have been looking at Kubwa and Lugbe, but I would appreciate some input from Abuja residents here.

Note: I am on a budget. So, places like Asokoro, Utako, etc are out of it. Secondly, I'm a freelancer; hence my need for an area with a steady electricity supply.

So, where in Abuja would you suggest and why?

As a freelancer, look for a cheap and secure area, get a cheap Solar installation that can be charged also with Nepa, and that can run your laptop for long hours and power your fan through the night, gadgets and other low energy appliances. Be careful of your neighbors too (since it’s a poor environment), they are not your friends, don’t form any familiarity with them (only good morning, afternoon and good evening) and just mind your business. Cheaper food and all that are some of. the advantages.

TheDemola:
People won't see this to praise the church o, but if to say na negative news, it would have spread faster than this. God bless His church

What exactly is the big deal here? Does it change a thing? These are people’s contributions been channeled back to other people. It makes no difference if I decide to do that on my own and not go through the RCCG church.

This is the same Church their hypocrite pastor carried placard to protest against Jonathan.

Dam5reey1:


Strange, I have used 60w Sunshine s and Got 3A on a PWM charge controller, I cant relate with 5.1A on 2 units of 180w

Is my fake? Or should I get an MPPT? The highest I’m getting today is around 75Watts out of the 360Watts. Even though the sun is high in intensity today.

Dam5reey1:


2 s of how many watts? How was it connected, what brand?

I have a small set up like that where PWM is on par with MPPT. Because the s perform to their rated capacity.

Africell and Twintech, 180watts each. Connected in parallel.

Dam5reey1:


Its about wrong sizing.

You are using the wrong s on the PWM..
PWM is designed to have close to the battery voltage.
On a 12V system
You should use a with VMP of 18V max. Not a 335w .

If you use with 18V VMP, the PWM will out shine the Toy MPPT.

But I’m using 2 s of 18V VMP on a 60Amps PWM controller, highest I get is 14.8V and 5.1Amps. Can you kindly explain that?

fuckboys:
Chai, that means the pwm controller is not efficient at all. Mppt controller is your solution chief, you'd get at least 200w from those s.

Honestly, it’s quite annoying. Yeah I will get the MPPT. Thanks!

fuckboys:
I don't have a , even the mppt dealer I bought I don't even have his number.

I price at about 3 places and bought where the price was reasonable.

Ok. We just installed the new today to parallel to the old one to generate more current, alas, there is no difference. So I am suspecting the PWM controller is the issue here. I don’t understand how I will be getting 70Watts at peak sunlight from a 360Watss . How on earth is that even possible.

January, Gods grace, I’ll get a good MPPT and see if there will be any difference.

fuckboys:
at alaba, cos I asked when I went to get the mppt charger there.

Africell was selling the 180w for 45k at their dealership at F line alaba garage.

Wow!
I’m definitely getting it tomorrow 😀
Can I get the of this dealer pls? I might go there today infact!

fuckboys:
I understand your point, a 180w is currently 45k against 65k of a 30a mppt.

Your best option then is adding an additional in parallel to boost your amp rating.
Cos as it is, an additional will get you more wattage than mppt charge controller.

Wow! Really? I never knew the s are this cheap?
Yes, you are right about the wattage.

Is it at Alaba? I’m familiar with Alaba, Or where exactly (store) can I get original 180Watts for that price?

fuckboys:
just one ?

I have 3 s of 180w, with the mppt at peak sunlight I get around 320watts, I'm sure it would probably around 200w with the pwm

I wish I did this calculations with the pwm.

Yeah. I use the 512Wh system. So he said one is minimum and that I should add one more to get a better charging time for the system. On the other hand, I also believe that an mppt will boost the charging rate on one to about 59% (just as yours implies) which in my case can yield 106watts which will take about 5 hours of sunlight to get the system completely charged .

Another thing is, if I am to get a new connected in parallel to what I have, I will get two times of my current output from the with a constant voltage l, meaning I am likely getting more watts from the this time compared to getting mppt.

Now I’m turn between either of the two-getting an mppt or getting another (my affinity is more on the mppt for reasons I don’t know lols). I can only afford just one at the moment. By January I can get the other.

fuckboys:
I'd advise you get an mppt instead, it will utilize the full power of your existing solar .

Even with more s your pwm might still not perform well.

Josh sometimes like being economical, I know this cos I complained before he upgraded a 30a to 60a pwm charge controller.

I'm sure it's the 30a pwm controller he gave to you. Even the 60a was doing poorly untill I upgraded to mppt myself.

He's system are cheap so him trying to maximize profits sometimes make him cut corners a lot.

Great. He gave me the 60A controller but it’s still way lower in efficiency. Imagine getting max of 70Watts from a 180Watts . It’s so poor.
I’ll get the mppt controller and see for myself. I personally love experimenting, but the economy is not smiling at the moment.