₦airaland Forum

mctfopt:
Idea is to save energy during nighttime.

Baba,I understand but how much energy does a charge controller consume at night?My PowMR charge controller is practically dead at night, only the display shows which in most cases wont even consume up to the idle consumption of most inverters

eghos12:
Please guys I have an issue. There is this blue carbon lithum battery installed with luxsun 4.2kwh 24v inveter. The users says the battery off at 24v it does not go below that. I have reduced the inveter 24v low dc cut off voltage to 21v but it still goes of at 24v. I checked online and found that blue carbon batterie has 20-24v bms cut off voltage. The battery has a dumb bms. Is there any solution on how to reduce it more or the blue carbon batteries is like that??

Obviously the BMS has been programmed to cut off at 24v , that is 3v per cell .If the bms is not a smart bms where you can edit the settings, there is nothing you can do.Except you are willing to consult people like @Dam5rey and a couple of others here to help you open it and change to smart bms.

adibo:
Good morning all. I am back again. I have two Mercury tubular batteries which I installed around March last year. They are serving me very well and I have not experienced any day of darkness since I installed them, either morning or night, even during days of rainfall. My inverter is a 24v Mercury inverter.

However, with all the information I have been reading here, I am planning on switching to a Lithium battery. I don't want to spend up to a million naira on the battery upgrade because my load demand is not much but I also want to be future-proof with whatever I buy. I generally consume at most 300w continuously, which is my fridge, TV, fans, and bulbs.

I am thinking of buying a 3.6kwh lithium battery but my brother is advising that I go for a 5kwh battery which will be above a million naira.

My first question is: will the number of hours the 3.6kwh lithium battery last be much different from the current tubular batteries I have? How many hours am I likely to get from the 3.6kwh battery with a load of 300w? Is the upgrade from two tubular batteries to a 3.6kwh battery worth it?

Secondly, what will be your advice regarding the best brand to buy? From what I have seen, the options are buying from Mr Valto, or buying Cworth batteries or Haisic batteries. Which will be the most cost-effective and reliable option? Yes, I want a cheaper option but also an option that won't make me regret a few years later due to the performance of the battery

Sorry for the long message

I believe the suggestions of @heavenlybang and @fuckboys are very much valid.However, Mercury tubular batteries have been known to be very unreliable.You have been enjoying it so far because of you small load.You can get Haisic 7.1kw for 800k, or same 7.1kw with smart bms from @Mrreed for 840k.Your options are actually very wide with the funds available.There are also a couple of 5kw less than N1M naira in the market

fuckboys:
new felicity charge controllers dont draw power from the batteries only from your pv. youll have to connect it to pv to power it on

This is a terrible design. Someone should advise them to improve on this.I remember those days , I use my PWM charge controllers to monitor battery voltage without connecting to PV

dollarnaira:
Yes

Ok.Thanks.

funken:
Does anyone know any other reliable Jinko supplier apart from Fouani? They are always out of stock of Jinko products. The day before yesterday i checked and there was plenty, today they are totally out of stock!

Jinko 620w is available on Foauni site.That's the only one avilable

macuwon:
My Lexus rx300 is having issues, the car would just go off sometimes when I'm not in full motion, and it drags a few seconds to move after a cold start. I parked the vehicle for some weeks and today I took it to the mechanic. He immediately said it's fuel pump, bought fuel pump, same thing, he said it's plug, i bought new plugs and cleaned the nozzles, same thing. He used his scanner and said the scanner saw nothing, that we would continue tomorrow.. I feel it's a small issue but I'm tired of the trial and error. Please who has an idea what could cause it? After firing the car for a while, it's less noticeable.. Location is egbeda lagos

Best you scan and post the code(s) here

Many things could be responsible

Hi guys, can one safely connect 2 different LFP of same capacity but different brands in parallel.Has anyone experimented with this before?

dollarnaira:
Please Don't do this again o.
Your tubulars will die untimely.

.....if they are not on their way out already

fuckboys:
i went for bread, but as per the fans, the bread inverter fans are always running round the clock even with little or no loads on the inverter.
Don't know if it was designed that way.

Haha! Now you are talking.That itself is a disadvantage Reminds me of the days of that mercury 2.4kvs modified since wave inverter that the fan is always on.

bassdow:
Hello Guys, need your input

Which brand of charge Controller is better out of these ? Kindly rate them in other of better to worst

1. PowMr
2. MUST
3. cWorth
4. Felicity

I have only used Powmr.I have 3 which I have bought for over 5 years when it was still going for 38k on aliexpress.Two are connected while one is spare.They are very good. Only limitation is that they don't come above 60amps when I bought them.

Haven't tried any other and not sure I will because if I have any reason to change my present set ups , na to go the hybrid way.

isangjohnson:
Please, does anyone have any experience with inverter being exploded?

A customer called and told me yesterday that his 5kva 48v Felicity hybrid inverter exploded at about 8pm and smokes were every where.

Though I'm sending someone to his house today to check what actually happened but I tried asking him certain questions to know what actually happened. He told me there was nepa light (low current) but the house was running by the solar. The weather was normal and lightning/thunder at all.

The installation was perfectly done.

One of the components must have lived its useful life.The noise he heard is because of the size of the inverter.I had one of my inverters, 1.5kva Luminous inverter had simlar issues like 3 weeks ago.The noise wasn't much but I got smoke as well and the fan stopped working.It was fixed at their service centre in Oregun. I am sure Felicity will be able to fix it.How long has the inverter been installed?What capacity of battery is it connected to?. Mine was caused by bad tubular battery.The batteries stopped receiving current while inverter kept working to push in current.Eventually replaced the battery with LFP after the inverter was fixed.Long period of low voltage also make inverter to overwork as they do not receive appropriate voltage to deliver the right charging current and the internal components become stressed.

fuckboys:
everytime grade a grade b, i don't even understand what the noise is all about.

Not even like you're using the battery pack for high voltage applications like hybrid vehicles or electric cars, it's just home storage system.

Most of you here will even die before you degrade even a grade C lifepo4 batteries on just home storage.

It's a very good deal and we all know it, nothing beats it currently in Nigeria based on pricing.

Agreed, but as Nigerians, we be Oliver Twist

fuckboys:
the max voc of 80v on the powmr cc is for 12v system, it supports 24 and 48v systems also which also has different max voc. Please refer to your manual for this.

I switched to hybrid inverter because of exactly this limitation on the powmr cc, it couldn't handle my 4 panels on 12v system.

This explains it!

Dam5reey1:
That is why the pack is Cheap.
If your battery is Full capacity you will understand the usage pattern in no time.

Only few of us even understand what cell, SOC mean. Even the percentage on our phones not sure we pay that much attention

Is it realy that cheap?Considering it is Grade B cells and one can get equivalent capacity of Grade A cell at almost same price.

fuckboys:
yes connected all 4 panels in series

I still do not understand the reason for this max VOc for 12v and 24v on this powmr cc .My understanding is that once you exceed that max VOc the controller will get bad somehow but with 4 420w panels in series on a 12v set up that is meant to have max voc of about 80v, its still confusing. Do you ever exceed 800wats ever. Make e nor be say the other panels are just wasting and the charge controller is limiting pv watts input to the maximum allowable for the 12v system (720w)

Dam5reey1:
Checking cells voltage is overrated, for me sha.

Asides cell voltage , it is just helpful in knowing what is going on in the pack.You know your charge currrent, voltage, etc. I think every it just makes life easy sha.

HeavenlyBang:
24v 280aH? Who be that abeg.

@Mrreed

HeavenlyBang:
Yeah, that makes it a no-go for me unfortunately.

Same with me. Especially when someone can do same capacity with smart bms and Grade A CELLS for 840K

Dam5reey1:
Don't Buy Lead acid in 2025 abeg..
We just replaced a Lead acid with this

It only managed 52,369AH, approximately 261 Cycles less than 2 years e don degrade to 10% capacity

Now we have installed 3.6kwh with 1.5kva Hybrid

He who has ears,let him hear what the spirit is saying

Darey00:
Jesus Christ 😂😂 I've scattered that controller today and read the manual from cover to cover with no headway. This is valuable insight.

Make I go open Target savings to upgrade to Lithium later this year. Thanks boss

You actually don't need target savings for the Lithium .Just assume you want to replace the tubular and use the funds to replace with LFP.

Good tubular ranges between 280k-300k.Replacing 2 units is like 600k.That will get you an equivalent LFP. Add some change, you get higher capacity LFP.Shikena!!!If you state your budget for the battery, people will give you more than enough options.

You actually don't need target savings for the Lithium .Just assume you want to replace the tubular and use the funds to replace with LFP.

Good tubular ranges between 280k-300k.Replacing 2 units is like 600k.That will get you an equivalent LFP. Add some change, you get higher capacity LFP.Shikena!!!If you state your budget for the battery, people will give you more than enough options.

HeavenlyBang:
This so much. The modular nature of solar means all kinds of functional setups can be designed based on budget.



54% SoC for less than 1kwh. By my calculations, that's actually around a 70aH battery

I'd personally just ask for a complete refund tbvh.

I thought of that too but the wahala for that one will be long.It is actually the best option in this case!

HeavenlyBang:
The really funny thing here is that this battery isn't even up to 2.5kwh

It is more like 80ah Grade c cell

In fact, I dont know what this oga is still waiting for.

Both the PRO and the installer should be in detention now.

All you need tell police is until they provide the quality you paid for, they should not be released.Na small money e go cost you.And you get an independent installer to confirm what they eventually supply before release.How can people be so wicked?

In this hard economy?

fuckboys:
I'm just charging with only solar for now, where is the most reliable place to have the inverter fixed? It's a sukam transformer based Indian inverter.

If they have a repair centre that will be best. All these Alaba and arena guys do cut and join. except you have a reliable one.I fixed my Luminous inverter at their repair centre in Oregun.

You can buy an external 12v LFP charger and use with it.@Valto or @lnnovo should have

fuckboys:
all issues fixed except the inverter charging problem. Still tripping mcb

That's shoukd be a problem with the inverter

fuckboys:
120 what?

If the over current protection of the battery doesn't trip.

For 280ah battery. it shouldn't .Moreover the 120amp is theoretical. By the time you factor in losses in cable,efficiency loss etc you might be getting less than 100amp

fuckboys:
I have disconnected 2 panels, now I have 2pcs for 420 Cworth panels I’m not making use of.

This Cworth panels are very good, even with just 2 panels I get around 700+ watts which is enough for me.

You are better off this way,.That's 840watts as against the 720watts recommended for 12v.The difference is still acceptable.

You can invest in another Mppt and have the remaining two panels set up on it

That will be 120amps expected generation. Your battery will be very happy!!!

KudozInteriors:
I’m a guy sir.

I paid 1m50k sir

You should get the installer arrested.That battery is 25.6v 100 ah which is 2.5kw.

Except it is a recalibration issue but based on the information in the display,that is a 2.5kw battery

You need to deal with him.

olatade:
Good afternoon house



My inverter setup is as follows: a 3.5kVA inverter with two Luminous tubular batteries. I have three [b]555W Jinko solar panels connected in parallel to an old 60A Modern Felicity charge controller. 6m[/b]m copper wire from the panels to the charge controller. However, the cables(6mm) from the charge controller to the batteries tend to get warm, and sometimes even hot. What could be causing this, and is there any solution?

I don't know what you mean by old charge controller, but I suggest you get a 60amp charge controller and connect your panels in series.

bbally:
AV had 2000watts connected to this type of powmr cc before I switched to hybrid and what I have on it now is 1000watts and 2000watts on the hybrid

Really? For a 12v system?.Fine then.I use same CC and keep strictly to the recommended VOC and PV watts limit.

BiigTee:
Good morning Everyone .. My dad recently upgraded to a lithium setup So I have items from the previous setup available for sale . All items are working beautifully well and were well maintained (my dad no dey use his system play)

-Very rugged Indian 3.5kva soccer power pure sine wave inverter - 350k (brand new is about 500k) x2 pieces
-60a Roy solar charge controllers - 15k each x2 pieces
-Ritar Deep cycle lead acid battery 12v 200ah (less than a year used) - 200k ( brand new is about 400k) x4pcs
-350w panels - 60k each x5pcs

Location is lagos - Pickup and pay only..

Boss,you will need to lower the prices of these items for quick sale..Anyone newly investing in Lithium now is better off buying hybrid.

Brand new soccer power 3.5kva is between 300k-350k,, so you see.......