Hollawayn05:
Greetings great minds
My 300watt x 2 panel usually gives 20 plus or minus amps when the sun is high, but as of 2 days ago it has been given me 7amps plus of minus, thiu the battery still charges well but I haven't been able to use some appliances at noon as I always do,

What could be the reason?
I just cleaned the panels now still same output

Where are the panels installed? Are they in series or parallel? MPPT or pwm ?

Disconnect them and test individually

edigodwin:
Good day fam, please I want to start a phone charging business with at least 100 chargers. Please I wa[color=#990000][/color]n to know what solar system will best suite this and the current price of every equipments, thanks

What's your budget?

essegis:


Yes oo.
Those guys are still going strong but this is a system upgrade. I will be moving those guys to handle the refrigerating systems (2 freezers, 1 fridge) now while these guys handle the house. The BYD from before too will now be fully dedicated to security lights alone (maybe afternoon pumping too sha).

That's nice. You'll really have no worries about power when you add these, but are you setting up a solar farm to charge them? Because I can only imagine how much solar input you'll need and the space.

essegis:
Selina came through for me.
Payment was made early January and they arrived early April. 3mths shipping and clearing duration then.
Well packaged for the long journey inside standard cartons. I don keep the cartons to use as separator when installation starts, top quali those cartons.
One of the things I didn't like with the purchase is the busbar came without insulation (usually its in their adverts). Just ordered shrink wraps now to use for that, extra monies.
For now batteries are undergoing top balancing. I see this my small charger using up to 2wks to gain full charge status.
Batteries arrived at 3.28v with a few dropping to 3.27v. They have been marked out for close observation.
Let's see where this new adventure will take us to. One China thing wey people never start to complain about.

@justcallmenuel, abeg this Growatt hybrid still dey available? Can you please paste the specs here. Thanks.

Didn't you have some cells recently? I think Nissan leaf or so? or was it someone else

bigrovar:


Tubular Battteries share the same age as AGM, it all depends on how you use them. I tend not to recommend tubular for home or solar use, if you can afford go for AGM. you can charge them faster and discharge them at a higher discharge rate, all this makes them ideal for home and solar application. Tubular have too many point of failures, for one the tubular we get here in Nigeria have electrolyte of douthful quality since the electrolyte are usually mixed and filled here in Nigeria, you can not be sure of the gravity of the mix ratio and the quality of water used.

Then they is the issue of long time idle state, over 3 months in a ship from India and another 2 to 3 months in the shop waiting to be sold. All this means when you get a tubular it is already suffering from partial state of discharge and have issues with sulphation. AGM is less susceptible to above listed problems. The problem with AGM is cost. Good AGM batteries cost close to Lithium.

Are you implying that longer storage period / idle state doesn't affect AGM ?

Peterlove11:


I will say it's ok....don't have a standalone mppt to compare. The peak harvest I got today is 1.79kw from a 2440w panels, I don't know if it could be better. The panels are 8 270w, I added 280w panel recently to make 9 panels configured at 3s3p

What is the inverter model ?

Sunnystooth:


I don plead tire... Please house help with recommendations naaa, I don't want to make mistake again.

A good 24V 3.5KVA inverter with budget around 250k naira.

Thanks.

Contact idyllic, they have an inverter with editable settings.

isangjohnson:
I'm yet to receive the lifepo4 cells ordered in November last year. They were to be used to test run the contract project.
My mind hasn't been resting since but I'm very happy that VALTO has stepped in to make sure I receive that good as soon as possible.
I really appreciate his efforts.

From Selina?
What has been responsible for the delay?

mctfopt:


That's true, I've had them repair a friend's inverter too free of charge. I was shocked, the friend only covered transportation cost of sending it to their office and back. They are trying.

If only their inverters would come with toroidal transformer, they'll be my best bet. I can't be doing "energy saving" and using an inverter that swallows up energy doing nothing.

Bb007:
Good day everyone, please I have a 5kva 48v inverter, with 4 12v 200ah dry cell batteries. I want to connect Panels to it, and I am currently on a budget. Please how many 400 watts panels do I need to charge the batteries full and power a 140w freezer in the daytime? Thank you

Is your inverter hybrid?
If Yes, What's the spec of it's solar controller?

What other loads are being powered with the freezer?
What's your night time load?
Do you use grid supply?

Obnoxious2001:


Do you have contact or anyone I can reach out

Search for them via Google or even on IG

oloet:

Let me use our local parlance, it is inec blue battery, two of it connected in parallel, it is rated at 480wh, I don't have the picture right now

Ok... do they still sell them anywhere?

oloet:


The charger doesn't have an adjustable voltage function, I have been using it like that for 4-5 years now though the lifepo4 are cylindrical in nature

Can you please share a picture of the cells and what's their Ah rating?

contease:
Greetings to everyone...

Please anyone with a personal experience on the Tactel products...

Precisely the 3.5kva 24v norminal system? :

Check out this product on Jumia https://www./tactel-solar-3.5kva-24v-pure-sine-wave-inverter-105338686.html?utm_source=social&utm_medium=pdpshare

Kindly share your experience please...

Contact idyllic, they have a good inverter with very low idle consumption and also editable settings.

Dam5reey:


Contact?

.

I have these for sale:
Fangpusun 50D charge controller - 55k
Microtek 24V inverter - ups - 50k

drizzypat:
no that number was distributor of jinko in nigeria I think

Techland said they don't have

Maybe some misunderstanding or a new policy
but that's Techland's number.

Otunbahamzy:
It goes into a loop and won't stop until I remove the cable from the battery terminal. It just continue to go on/off till I remove the cable from the battery

Maybe just a bad switch?
Let's expect responses from current/former Axpert users

munchies:
Hello guys. Lovely job you all are doing from discussions to advise being dished out.
I need advice though.

I want installing solar to power a 3bedroom bungalow.

1 double door fridge
3 TVs ( all won't be on at same time)
Sound system
Energy saving bulbs.

How many KVA inveter will power this and what capacity of lithium battery and how many 350w of solar panels will be suitable?

Thanks in anticipation.

state the power rating of the sound system and how many units of energy saving bulbs and their Watts. Because it's possible people call white lights energy saving and go ahead to have like 50 of them in addition to those inside chandeliers.

ozone0801:

Is there any good alternative MPPT that's pocket friendly

Powmr, you get it from many sellers here.

mank1234:


She said 2 to 3 months. That means early March to April, if there's no delay.

Has anyone shipped cells via nonikings before? Care to share your experience?

ozone0801:
Good day my Ogas,
Is yohako CC a good product to buy?
I saw the 60A for 68k
And the 100A for 130k

Personally, I don't know. Though someone here once said it's a glorified PWM and the comment was countered by another person that said there are fake/imitation of yohako products.

Otunbahamzy:
Good evening bosses, I have an axpert hybrid inverter. It doesn't go off. If I switch it off from the button, it will just continue to restart. I tend to put it off by removing the negative cable from the battery. Kindly assist with troubleshooting guide. Or if there is any repairer in sagamu or Abeokuta

What do you mean by "continue to restart" ?, does it go into a loop or it just continues it's operation without switching off ?

nnadychuks:
sorry I’m just getting back, I was trying to study the configuration.
It’s an AC connection, 2.4kw inverter with 2 220ah batteries and 8 big panels.
Heavy appliances like pumping machine and water heater have been disconnected from the inverter. The highest load is ps4 slim and tv rounding up at 200W…
There are 4 ceiling fans which are simultaneously running and we never power fridge with the inverter.

It could've been better if you knew the rating of the panels 8 big panels may not really tell us much.
Can you post a picture of the setup?

I presume the ceiling fans in use are the usual AC ones? Not DC ceiling fans?
The AC ceiling fans consume as much as 60W if not more, multiply that by four, then add lightings, then the TV & PS4 slim, you may be heading towards 600W or more. If these loads are used mainly during the day, there may not be an issue but if they're still same or slightly reduced during sun down and through the night then the batteries may be insufficient to run them. This is assuming that the batteries are well charged by your 8 big panels, it is still necessary to know if your panels are generating sufficient power to charge your batteries and run your loads in daytime.

IyaTola:
I want Canadian panel and lithium batteries

You're courting millions, it's now a matter of how many.
What appliances do you want to power?

Valto:
u seem to be even over charging your cells. from my experience, the perfect charge voltage for 12v lifepo4 lithium is between 13.8v to 14v bulk, 13.5v or 13.6v float.

Thanks, no cells are overcharging yet, lol.
I just wanted to know if anyone used those common PWM controllers with lifepo4 because I see it on some portable lithium packages being sold around, so it's either they're overcharging the cells or they've incorporated buck converters to lower the voltage.

ojeysky:


A 12v lifepo4 should not be charging up to 14.5v do reduce your bulk voltage to a voltage within 13.5 to 14

Thanks, the question was hypothetical, was just trying to get if anyone tried and got away with it.

NiyiOmoIyunade:
Are you forecasting zero yield from the solar panels from like 12pm or what?

I am wondering why people have such a dim view of the abilities of a lead acid battery - especially in this case when things could be arranged so that there will be sufficient solar for the pump to run off or at the very least enough solar to offset some of the pump's energy demand.

Not zero yield but insufficient yield. This isn't about berating lead acid, I merely described realistic situations and scenarios which could easily occur.

nnadychuks:
Lead acid
Li-ion
LiFePO4
Which is the best among these batteries? I’m asking cos my Li-ion “Haustrom” battery died under one year

If you substitute in another battery, it may just die under another year.
State your setup configuration and load profile, so you can get better suggestions.

IyaTola:
Can I get a quote for 5KVA?

Thank you in advance

State your appliances
What's your budget range ?

Does anyone have any experience using the common blue & black PWM controller to charge LiFePO4 12V batteries ?
The highest volt I've seen it reach in a setup is 14.5V, any thoughts or experience? good or ?

bigrovar:


We can't have a thriving community with this type of attitude. Accusing someone of lying without any proof to what end? Why should he lie? He doesn't sell lithium batteries neither does he manufacture them. If his suggestion tickled your insecurities then that is your problem.

Earthrealm is one of the Tubular batteries OG. He has lots of experience with them and he told no lies. Tubular batteries like all flooaded acid batteies are but designed for High rate of discharge. It is just one of the down side of the battery chemistry. Tubular are rated for C20 discharge or about 10A for a 200AH battery. 10x 48 = 480w this is the rated or optimal discharge rate of an average 200AH tubular battery in 48v configuration. Anything above that and you are discharging the battery faster than it designed rate if charge.

Putting a 1.5HP device which is over 1000w or about 20A This could lead to inevitable voltage sag especially if the battery is at 50% state of charge which can even trigger a low voltage disconnect.

A cheaper alternative would be to use an AGM battery like Quanta or fullriver DC. AGM have higher rate if discharge and some can go as high as C10 or 800w in the case of 200AH in 48v configuration.

I've heard about fullriver DC having such capability, is it being sold locally? I mean the DC variant that has such higher discharge rate.