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CuteMaro's Posts

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Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 6:14am On Sep 08, 2025
ask4bk:
Why will they use 280a and market 314a?

Haisic needs to be boycotted by people going for brands.
Good point to note, however the reason I still recommend is the ridiculously cheap price for what is being offered compared to other so called reputable brands. Even cheaper than most DIY's for 280ah. I think it's a great deal regardless.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 7:03pm On Sep 07, 2025
mctfopt:
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
grin grin grin
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 3:25pm On Sep 06, 2025
Fakeisfake:
I want to express great appreciation to everyone who have supported my journey to power sufficiency.

As being said here, "na person wey get sense dey use inverter" lol. Years back, I started with 2 then 4 and then 6 pcs of car batteries including my car battery and the others from my "Kazeem"lol and a MSW inverter then Tubular Batteries...

Yesterday I journeed further with an 8kwh 25.6v pack from Mr Reed. I must say, even when I could not see or touch his sample earlier sent to a client of his in my visinity, Port Harcourt, I kept faith and gave him the benefit of doubt.

After 2days,i got my pack from Kaduna to port harcourt via waybill and I can say, it feels great.

To Georged1, Trippledot, Nnamdi, Mr Reed and one other moniker I can't remember now, really, you guys are more human than humble, just my choice of words here.

I highly appreciate all of you. I pick my phone, call all the names above at will and it's always almost unending conversation. TRIPPLEDOT, REED, Georged1. How do I appreciate you guys. Now friends for life I must say.

Mr CuteMaro, thanks for your last words to me against all odds and or fear. I understand and can relate when you think I am new on the page so not sure. I lost control of my old account of 2006 recently so no worries brother. I can relate. ...

Please let's not hesitate to patronize Mr Reed. His humility, willing to explain to the simplest of details is out of the normal Nigeria business person. He takes, atleast my call just anytime at will calling me Oga, bros, I am no be Oga just as struggling fellow as you.. Lol thank you for your commitment, sincerity, dedication, will to go far out to support when reached out to also as confirmed from one of the names mentioned above. Thank you to everyone for the ideas, knowledge sharing.
Congrats man. Being enjoying mine ever since paired with Haisic 24v 4.2kva inverter, absolutely no complaint.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 11:13am On Sep 06, 2025
Judgementday666:
Thanks. Is this Valto the same guy as Dowu Tech on Tiktok? Because when I search for Valtech Energy his page comes up.
No. Valto is available here on Nairaland. Search his moniker (name) you should see his contact. Likewise Mrreed.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m):
Judgementday666:
Well said. Where can someone order these batteries directly from the manufacturers?
For the DIY you can contact Valto or Mrreed. Great batteries, with solid build promising more than rated capacity.

For the others you can either visit solarissurge dot net by Dammy (Great guy, decent prices), or source out other retailers from here
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 6:00am On Sep 06, 2025
HeavenlyBang:
Deriy also made full capacity and are really cheap, just a bit more expensive than our builders.
Yes I forgot to add that too.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m):
Dam5reey:
Deye has also been done. I just completed for 8kwh 25.6V Haisic..
We are active on Tiktok..
Just saw your video. Haisic performed quite well for the price.

So apparently, the most popular brands flying around here have been short changing customers grin

Buyers beware, stop buying names. The best bang for your bucks apparently are;

DIY from Valto and Mrreed (Untested though)
Deriy
Firman
LVtopsun
Deye
in no particular order.
and Haisic.

Chief please test Sako if you can, those guys have suffered some bad PR in the past, maybe they can use this opportunity to redeem themselves.

grin
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 8:10pm On Sep 05, 2025
I see nobody has mentioned battery capacity tests done by DIY WITH RAY on tiktok.

The test was conducted between Felicity, Firman and Cworth Batteries all of 10kwh capacity and the test results were quite interesting with the most popular brands failing woefully.

I will suggest people refer to battery capacity tests before recommending any brand. The market is a mess.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 12:51pm On Sep 01, 2025
adrusa:
When a BMS shuts down, it cuts off the voltage from your inverter. If the inverter can not do batteryless operation, you will need to find another way to wake up your battery. Even if your inverter can work without batteries, there is no guarantee that it will wake up your BMS. Once some BMSes shut down, there are specific methods needed to wake them up, not just supplying them voltage. That is why it is good to set the cut-off voltage for your inverter higher than for the BMS, so that your inverter shuts down before the BMS. Every installer should pay attention to this when installing lithium batteries.

There are also some BMSes that bypasses the BMS for charging or discharging. Such BMSes have another leg that goes directly to the battery without passing through the BMS electronics. That way if your BMS dies, your battery can still be charged or discharged properly and the BMS will come up when the battery gets to the set recovery voltage. However, if you have that kind of BMS, you must set your inverter/Charge controller charging or discharging profiles to ensure that you do not kill the battery with overcharging or overdischarging.
Thank you very much for this explanation. Now I understand better.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 10:01pm On Aug 31, 2025
bassdow:
you do know you mustn't use an inverter to wake a sleepy BMS right ?
Hopefully it's only sleeping, and didn't go into lock-down
Just trying to learn my Chief. In case I run into something similar in the future I'll know what to do. I use the Haisic 4.2kva hybrid inverter and it has that feature.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 5:53am On Aug 31, 2025
ask4bk:
That's just another feature that hybrid inverters may or may not have. Even external charge controllers come with this feature while others don't.
So basically, an inverter being able to supply electricity in the absence of battery is not a guarantee for waking a dead battery in the case of a bms shutdown.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 2:48pm On Aug 30, 2025
ask4bk:
Then it means you want to put a solar charge controller into the non-hybrid inverter and make it a hybrid. That's Cool stuff.

The feature for an inverter to run from solar power independent of battery isn't a core hybrid feature. Many hybrid inverters don't have that feature though only a hybrid can have it since it has charge controller for solar panels. It's just an extra feature that hybrids may or may not have like supply to grid, power priority feature, etc... What makes an inverter hybrid is just one thing alone - that it has internal ability to get power from sun. Shikena.
Does this mean inverters that support this feature ( can working without batteries) have the ability to wake a dead lithium battery caused by bms shutdown?
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 3:17pm On Aug 24, 2025
This thread is always very interesting as we get to learn every day from different perspectives.

I would like to know please, if a hybrid inverter has the ability to supply power to a home in the absence of battery backup, does it mean it can also wake up a lithium battery in a case of bms shutdown due to low voltage?

Another question, if your hybrid inverter can charge your battery from grid when turned off, does it mean it can also wake up your battery from grid in the case of a bms shutdown?

Just seeking knowledge from the learned.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 2:33pm On Jul 26, 2025
ask4bk:
What wire size did u use from battery to inverter?
Since you using 24v system it'll be cool you use 2awg size coz of high amps if you one day use a high inductive device on your system like pump or AC or iron. You could draw 80-120a. But if you don't use any of these then 16-25mm 3-4awg that you seem to be using could go.
Good observation Chief. The wire in use is a 16mm. The highest I have pulled is about 45amps from using a 1.5hp A.C, my pumping machine is 0.5hp. I set my charging speed to 40amps max.

I don't plan to use my AC with this set up anyways. Just for lights, Tv and Freezer and other light loads.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 2:28pm On Jul 26, 2025
FordMustang:
Thank you so much boss. My budget is 1.5m
Ok, the experts will give you more insight, but going with Tubular batteries is a no no.

You should get a hybrid inverter, no need for Charge controller. I will recommend Haisic 24v 4.2kva, got mine for 340k. Most 3.5kva hybrids comes at similar price range. Haisic is super quiet and can take up to 5kw power from panels.

As for batteries. To get a cheaper deal you should contact Mrreed or Valto for at least a 24v 5kwh hour battery. Or you can go for Haisic 24v 8kwh at 800k.

I'll leave the rest for the experts in the end you may have to step up ur budget by a little bit to get the best bang for your bucks. Good luck!
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 8:27pm On Jul 25, 2025
FordMustang:
Hello House/Gurus in the House! 👋

I'm new to the solar energy world and need your expert advice. I want to install a solar system for my store and would really appreciate guidance from experienced members here.

My Requirements:

• System Size: 3.5KVA 24V hybrid inverter

What I Need Advice On:

• Which brand would you recommend for a 3.5KVA 24V hybrid inverter? I've heard mixed opinions and want to hear from people with real experience.

• What's the best tubular battery brand I can use?

• How many batteries would I typically need for this setup?

• What brands of charge controller will give me the best performance and longevity?What wire gauge (mm²) should I use for:

• What mistakes should I avoid as a beginner? Any components I shouldn't cheap out on?

Thanks in advance for sharing your experience and wisdom! Any advice from the gurus here would be greatly appreciated. 🙏

Looking forward to learning from your real-world experiences!
You can start with stating your budget. I am sure with that people can advise you properly. Goodluck!
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 9:45am On Jul 23, 2025
Update from mrreed's battery.

Actual capacity is 320 ah more than the 314 ah quoted.

At that price this is the best deal you can find anywhere.


Thanks to everyone that has contributed one way or another on this forum, I was able to set up my inverter parameters successfully through the knowledge acquired here for free (My installer is more of an old-school guy but did a very neat and impressive job)

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 7:49am On Jul 22, 2025
favouredbymercy:
@CuteMaro

Please be wise, be smart, be discerning, be careful.
Thank you.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 7:40am On Jul 22, 2025
Fakeisfake:
OH yeah, its simple... You should have gotten a mail, 2 anyway from NL with my name here, from that, you may choose to respond then I can exchange same from that we can have a call thats how it works...

However, I saw your 8kwh purchase and I have spoken with your dealer as well and am informed you stay in port harcourt so I was thinking if it were possible just to have a physical assessment one of the days on my way from work to take a decision on the two giant dealers here on NL particular in considering the huge price difference you got yours to the quality of it. So I just wish to have a physical feel/inspection
By the way, I stay by Woji as well and if you don't mind a visit from me really and I would appreciate otherwise of course no problems brother.
Hi. Good morning. With regards to the battery yes, it is a very sturdy build, and you can never go wrong with it. Comes with a 150amps smart bms with Bluetooth connectivity and a digital display.

If you want videos or more pics, I can furnish you with that. You can quote me with your WhatsApp number, and we'll take it from there. As for visiting, that won't be necessary.

You will make no mistakes buying from nairaland builders, their cells are actual capacities, much better than most popular brands here. My decision to go with mrreed was strictly on budget.

The build is big, beautiful and VERY heavy, it beat my expectation in build quality. You can never go wrong with mrreed.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 9:48pm On Jul 21, 2025
Fakeisfake:
Hello @CuteMaro,

Sent you two emails now, now sure if you seem them, could you kindly respond if you wouldn't mind please.
Hi, good evening. Sorry I don't fully understand how nairaland emails work, but if you have any questions you can ask me here and I'll be happy to help.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 11:14am On Jul 20, 2025
ajabani4allah:
Is the box metal or wood?
It's metal.

Very sturdy.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m):
Picked up this very beautiful and solid built battery pack by Mrreed.

24v 8kwh full capacity at a very affordable price (#920k)

This battery is beautiful, highly recommended.

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 2:44pm On Jul 11, 2025
Guys please who can confirm if Haisic have a PH office or service center.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 8:46am On Jun 03, 2025
BigDickProblems:
Some versions of Li-ion batteries now have a USB C port
Source: https://x.com/mkbhd/status/1929608426268598692?s=46[/quote]I've had these for 2 years, but micro usb version. Very nice invention.

They're very cheap too. Has an inbuilt charge indicator. You can get them from your normal average electrical stores.

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 3:49am On May 30, 2025
HeavenlyBang:
Tested on lowest speed. Lasted 11h3m. Voltage when it shut off was 9.7v.

LVD of 9.7v
HVD of 12.3v

Within spec for Li-ion, I believe. Experiment looks like a success. If this gives me 18 months of use, I'm a happy man.
Hold up, how did you do 11h on lowest speed? I was only able to manage 5h30 minutes on lowest speed.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 6:01pm On May 28, 2025
HeavenlyBang:
Never mind, I foolishly ran the test with the fan still connected to AC.

Battery is actually at 12.3v, which is perfectly fine for li-ion. Looks like the fan knows exactly when to cut off charging.

You should be apple to parallel them quite easily.
Great. I always wondered if battery was overcharged as I don't have multimeter. Thank God for your test I now have peace of mind knowing it doesn't overcharge.

The only crude test I did was to check for increased temperature in either battery or wire.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 5:55pm On May 28, 2025
HeavenlyBang:
I bought the li-ion battery pack on Jumia as a replacement for the lead acid in my rechargeable fan btw.

Battery came in at 11.6v, which should be about 65% SoC in a 3S 18650 setup. Pins don't match so I just ripped off the pin on the battery and connected directed to the fan's pins. Works fine.

Discharge/charge behavior remains to be seen. And that's what concerns me most. After all, lead acid is effectively at 0% SoC at 11.5v while a 3S li-ion is still at like 50% at that voltage. Hopefully the fan's LVD doesn't Bleep me over. Will update.
Got same. Mine is performing just great. I wonder if it's possible to get 2 for a parallel connection in order to increase run time.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m):
HeavenlyBang:
Ok.
Chief. Update on the li-ion battery for rechargeable fan.

The battery arrived, 11.1v, connected directly and charging with normal AC charger. Everything is working fine and the speed is very Ok at speed 1. Lasts about 5hrs:30 minutes. The charging indicator works fine and when battery is full it stops charging and shows green.

I doubt this can work for you as yours is 15v by default right? Mine is 12v.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 3:04pm On May 19, 2025
Mrreed:
The only con, they should have substituted that for a smart BMS.
Can the bms be swapped for a smart one? Is it possible?
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 3:12am On May 18, 2025
fuckboys:
it's close to 3 weeks now of active usage and I've never drained the battery no matter how hard I try.

A Fridge and a 43" smart TV with 2 ceiling fans all night has refused to drain the battery. It's very good.
Wow, this is really impressive.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 8:55pm On May 17, 2025
fuckboys:
i never really charge with nepa or gen, I just have it installed in just for the convenience of it.
How's your battery performing Chief?
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by CuteMaro(m): 10:32am On May 15, 2025
KudozInteriors:
I intend adding extra 3 or 4 550watts panels after this whole brouhaha has ended.

I heard that they don’t allow police or army to arrest anyone in Alaba. I don’t know how true that is. Nevertheless, I’ll get him arrested if he doesn’t cooperate.
Good, before adding more panels try and ask questions and also update the house with your kind of inverter, capacity and charge controller if possible, so they can better advice on how to size your system properly.

There's oversizing and also undersizing.

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