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Mctfopt's Posts

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Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 2:41pm On Oct 01, 2025
justcallmenuel:
100kva felicity inverter is available
Please how much is this?
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 1:38pm On Sep 29, 2025
AnaCheks:
Where can I get a 100kVa inverter?
Contact Dawnice

Lagos office: Block K4,14/16 Ladoke Akintola Street,lkeja GRA,Lagos .
Abuja office: Suite 305, block C, Sheriff Plaza Wuse 2 Abuja, Nigeria
0 707 571 2706
Technology MarketRe: This Thread Is Only For Aliexpress Shopper by mctfopt: 5:43pm On Sep 28, 2025
Nadingo:
Pls what affordable android smartwatch (<N100k) with all the bells will work fine with the google pixel 7 pro?
This
https://a.aliexpress.com/_EGrkhMK

Or

https://a.aliexpress.com/_EQEBFui
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 2:49pm On Sep 28, 2025
bigrovar:
Major Upgrade to My Solar Setup (20kW Hybrid System)

I just wrapped up a big upgrade to my solar system. It’s now a 20kW hybrid solar setup — built mainly on traditional off-grid components, but I also added some grid-tie functionality using Deye Micro Inverters in AC-coupled mode.

This project has been in the works for over a year, and there’s a lot going on under the hood beyond just the specs:

IoT & Control: Built a custom system computer using a Raspberry Pi 4 Compute Module running Venus OS + Node-RED.

Smart Automation: Created several Node-RED flows to keep the system efficient. One cool one uses the Solcast weather forecast to predict tomorrow’s solar yield and automatically decide whether to allow grid input — and how much.

Monitoring & Dashboard: I switched to Grafana for visualization. The new dashboard gives a detailed view of performance and energy data.

I’m working on a detailed overview (with schematics) to explain how everything is connected. Hopefully, it will inspire anyone looking to build or upgrade their own setup.

👉 Live Dashboard:
https://helio.openculture.org.ng/public-dashboards/867d6afd562543508eaf080533e7b652
You are doing well.

You've got some great RE system.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 10:09am On Sep 25, 2025
favouredbymercy:
Please who knows about Powmr repair center in Nigeria? Please i need info on this, thanks.
I doubt they have any.
This is why most buy from dealers that can at least offer small warranty.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 4:18am On Sep 25, 2025
favouredbymercy:
Good day everyone

I am using Powmr 4.2 hybrid and Haisic 25.6v black one, grid was on (charging was going on too), and supplying the house (load was lights and fridge), suddendly i heard a sound and power was off. Went where my setup was, saw inverter in error mode. Error 9 (bus soft start failed), battery shut down (battery is still shut down, not on)

Please what is the way foward? Location is Benin. Please embarassed

Please note my system is well protected With all necessary protection. It was not rainy, just normal grid usage (AC bypass mode) with less than 200w loads.
Inverter power board issue. Send to a repair center.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 5:05am On Sep 21, 2025
adrusa:
To illustrate the point about batteries connected in parallel.

4 batteries. Felicity 200AH with ANT BMS. Tactel 300AH with JK-BMS. CATL (DIY) 280AH with JK-BMS. Valto 173AH with JBD BMS. Felicity and Valto are fully charged, 100% SOC while Tactel and CATL are still actively charging. Each of the batteries are doing their separate thing based on their SOC.
Awesome. How did you have all this data nicely in one location?
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 8:16pm On Sep 19, 2025
Dam5reey:
Technology can only get better..
if you like be using letter to send message to your family members doesn't mean it is better than Email or chat.
Nigerian roof is seldom white. Any idea why roofing sheet makers love dull colours mostly black etc?


https://www.youtube.com/watch?v=mzqjCsZKUYQ&pp=ygUQQmlmYWNpYWwgb24gcm9vZg%3D%3D
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 9:41am On Sep 18, 2025
abuzz33:
Reports coming out suggest that the Afriland Towers Fire was started in the INVERTER ROOM.

"According to the Federal Fire Service team leader from Ebute Metta, Mr Ehimen Momoh, the fire started from an inverter battery in the basement and spread to a parked Toyota Sienna and a motorcycle, both of which were completely burnt. Other vehicles in the basement were, however, saved."

Its very important that if you are installing solar systems to get EXPERIENCED installers who calculate load, wiring sizes and use fuses, breakers properly. Ensure that you also install smoke detectors and a fire extinguisher nearby in case of fire.
I've personally seen a fire that started in an inverter room at a bank, and it turned out a faulty AC was the culprit. The AC caught fire, and melted rubber dripped onto batteries stacked below it, which were subsequently engulfed in flames. Without the CCTV video, many might have thought the inverter system was to blame.

​Anyway, nothing still beats using experienced installers or workers for your job. You can't cheap out on safety.

​Also, I wonder why our tall buildings in Nigeria don't have fire escapes. This is especially concerning since our Fire Service lacks the capacity to rescue people stuck in high-rises during fires.

​I just hope people install fire safety devices, like FM-200 fire extinguishers, in such sensitive areas
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 9:23am On Sep 11, 2025
BangaRice:
The issue i discover about we buyers is assuming what favours us. Most cells arent grade A and they hint by including something like "<=5000 cycles" in the specs. Some are even rated less than 2000 cycles. It shows you that out of the total lifecycles, someone has used some of it thus the lesser than symbol.

Some chinkos also exploit the space created by such gaps in estimated life cycles of cells to sell not so good cells.
You can do all the due diligence in the world, as long as you not in China, you don't get to see what is shipped to you till you receive it.

But like I said, yet to take a loss from buying from China. Still the best place to do business.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 6:57pm On Sep 10, 2025
favouredbymercy:
Come to think of it, has anyone come to the end of life of their lifepo4 battery? grin
LFP is baba wink
I'm looking at four cells of LFP at it's end of life, it's a SinoPoly 100ah cells I bought around 2018. I killed it sha as I was using it to start vehicle without BMS plus other crazy things grin
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 2:44pm On Sep 10, 2025
The only thing I miss in lead acid is the money I make from selling it as scrap at end of life grin

I don't miss any other thing.

LFP is king.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 6:43pm On Sep 09, 2025
Dam5reey1:
Incomplete story!
How much did he buy the cells cause 100ah are not cheap! Share pictures if possible. Cause when we buy the Seller send Pictures and videos even before they ship! Or was it a case of they sent different battery from what they showed him?
They didn't share picture before shipping. But they shared picture before he paid.

Seller has agreed to a refund

My bro I've seen things in Chinese importation- but I've never taken a loss. Most of the time I don't just bother to share some experience here as I'm busy with life offline grin

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 4:01pm On Sep 09, 2025
dollarnaira:
This is bad and painful.
But can you really fight this out successfully?
Distance/cost of shipping alone is discouraging.
They are trying to make it good. Like reship some numbers of grade A. Discount on future purchase. This may be a mistake. At the moment my guy can't tell. Just wants some grade A battery to be shipped to him. He will try to sell this one as B and take a loss. Doing business no easy.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 3:04pm On Sep 09, 2025
dollarnaira:
But the cost of each will say a lot.
If you show another battery and.ship another...we have a name for it- fraud
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 2:42pm On Sep 09, 2025
Chinese lithium battery market is crazy.

Loads of shady deals going on there.

If you have a good supplier hold am tight.

The rabbit hole is sure very deep.

My guy bought 250 pieces of 100AH supposedly new cells. Cells arrive and it's used cells with a new cell wrap. Supplier is saying they are not aware. Case still ongoing.

DIY is still king. Can't have it any other way.
Technology MarketRe: This Thread Is Only For Aliexpress Shopper by mctfopt: 2:02pm On Sep 09, 2025
hakinze00:
Thanks so much for the feedback but the goods I received was replica speaker and it sounds really awful hence the reason for return and aliexpress said the seller will cover the shipping expenses but nevertheless I will go to post office and speedaf office close to me and compare the shipping fee if it is too much than expected then I will decide if i should count my loses.

Note: I tried the refunds only options the seller was offering a mediocre compensation compared to the value of the item. The speaker cost over 500k and the seller was offering a compensation of just 11k.
Fake JBL speaker?

I fear to buy JBL, B&O or Bose from China.

You may be better off buying their premium product like Anker. Edifier, etc
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt:
Fremlin:
Those that use starlink, is there a way to extend it's coverage over a long distance.

If yes, how affordable is it?
You can either use a router with Ethernet cable hardwired or for long distance line of sight CPE bridging- buy two outdoor wireless bridging equipment with router for long distance wireless extension.

Outdoor wireless:
https://www.youtube.com/watch?v=wLC9J22LNy8 attached is the cost of a CPE outdoor equipment.


With routers:
https://www.youtube.com/watch?v=aShLy84RaMs

On mini setup:
https://www.youtube.com/watch?v=SY4-VHbJzNI&pp=ygUaV2lmaSBtaW5pIGV4dGVuZGVyIG5pZ2VyaWHSBwkJsgkBhyohjO8%3D

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 4:09pm On Sep 07, 2025
dollarnaira:
They understand us better than ourselves. We like cheap beautiful packages. Aesthetic is never my thing. Personally, it is either diy or nothing except other factors that I will never complained about.

If the price did not shock us, we should not complain at all.
They know the people often like it shiny. Nobody makes it as shiny as the fake merchants. They often go over the top in adding unnecessary LEDs to the mix so everything lights up like a toddler's shoe grin
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 1:13pm On Sep 04, 2025
ask4bk:
New Nigerian curriculum for secondary schools now include solar photovoltaic installation and maintenance from js1 to ss3.

Nigerian kids could be experts in solar installation before they are done with ss3.

Hope every school adopts this.

Solar installers here can also apply to schools as part time job.
The Nigerian educational curriculum is long overdue for an update.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 12:21pm On Sep 02, 2025
Trippledots:
In the comments, some people said pylontech uses same 15s configuration o.
The one I've seen was 16s.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 4:18pm On Sep 01, 2025
Obnoxious2001:
Can't even be a Nigerian problem.

Some people do solar in Nigeria to reduce bills
Some for survival
Some it's a necessity

So Nigeria no get business with any of those things.

Now this now brings me to another topic, will solar systems owners be willing to pay for insurances for their solar systems?
Yes, I think they will. It will depend on the insurance premium and what it covers.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 3:51pm On Aug 31, 2025
swagifted:
this one na for ongrid people.
Most Nigerians don't have an option, it's either solar or nothing.

So, for now, it'd take a long time for that to be Nigeria's problem
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 11:58am On Aug 31, 2025
dollarnaira:
The thing is price.
At times price is enough to tell us the value of purchased product. If 1litre of fuel is not true here,who are we to Judge judge China?
Everyone wants a great deal. I wish they'd be upfront with what they are selling.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 9:43am On Aug 31, 2025
HeavenlyBang:
It's just terrible, really.



Of course they cut corners. Their 8kwh battery is only like 7.2kwh. Still amazing for the price, though, so I don't know why they just won't market it as what it actually is.
Overstating capacity is a Chinese thing.

They do this as you can't sue the people selling a product. Also regulatory compliance is not a thing in China. So not hard to see a 3000w rated device not handle 1000w.

I wish they'd actually state the real capability of device. But that's where reviews and research can help or even better DIY your thing.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 5:18pm On Aug 30, 2025
adrusa:
Ok, I now see the edit, which wasn't there when I responded. The bolded below is what I responded to.

"Two batteries in parallel is still 12.8v nominal. So in this case you can't get to draw more than 150A, but your backup hours for load under 150A draw will surely double."
Na why I edit am na grin
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 5:16pm On Aug 30, 2025
HeavenlyBang:
Haisic still doing this BS even in the US.

48v battery with 15 cells lmao.
This is how they give you those "unbeatable" prices in the market. They cut corners. Saw the video and I'm pissed. Why will they do that?
Technology MarketRe: This Thread Is Only For Aliexpress Shopper by mctfopt: 10:22am On Aug 30, 2025
Sadeeqdikkko:
The post office called me today and said I’ll have to pay over ₦100,000 in customs duty for a phone I ordered from AliExpress. This doesn’t make sense to me, since the phone only costs US $154.00. Is this normal? What should I do?
Tax in Nigeria no dey ever make sense
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 10:21am On Aug 30, 2025
adrusa:
If the batteries are in parallel, he can draw 150A from each making a total of 300A.
Em I think I already said that in the post you quoted. Or did I not?
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 6:41pm On Aug 29, 2025
RickyM:
Of course if both batteries are connected in parallel, he will be able to technically draw 300A at 12.8V which is 3.8kw power draw but practically it won’t be advisable.
My question. Is what size of cable does this user have to be able to do this?

16mm²?

35mm²?

120mm²?
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by mctfopt: 6:39pm On Aug 29, 2025
kristien4:
Okay, pls clear my confusion. I have one 100a 51.2v lithium battery max discharge at 100a. Meaning highest i can draw is 5120w. So if i add more 3 batteries to my initial setup, making it 4 batteries in parallel, does the max draw still stay at 5120watts?
It'd theoretically double.

What exactly are you powering to want to do this?

My battery maximum draw is 200A. Don't think I've ever drawn more than 70A from it
Technology MarketRe: This Thread Is Only For Aliexpress Shopper by mctfopt: 4:27pm On Aug 29, 2025
gbengress1:
Is the tracking number a NIPOST tracking number?
Yes

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