₦airaland Forum

Dam5reey1:
Show us facts instead of making baseless Assumptions!

When did Deye become yardstick for battery prices, if we follow that any pack selling lower than Deye is a Suspect!

The last time I checked, Deye was using batched and matched grade A cells to couple battery pack.
Go and check out the price, datasheet and compare with whatever one you see.
It's not a hidden forum. What you pay for is what you get

TechGeek777:
LiFePO4 Battery is becoming cheaper on daily basis.

10kwh is no joke for 1.6m

It's not becoming cheaper by the day Boss.
If you really look closely on the iPOWER battery specification, you would certainly see the reason for the 1.6m
Try and check how much Deye is selling 10kwh lithium battery , then you can confirm whether the price is now cheaper or not.
The cells market is very complex..... A lot of undisclosed market strategies as some buyers are either too busy to make an enquiry or too relax ask critical questions about the product they intend to buy.

kristien4:
1.6m

Is this battery really coupled by iPOWER Company?

easyyoke:
Hello Guys. I want to make inqiuiry about SRNE LIFEPO4 Batteries. Has anyone here tested the SRNE batteries? Are they up to their advertised rated capacity? I know many people have reported on this forum have reported that that Felicity batteries are not up to their rated capacities. Has anyone tested SRNE capacities and is this brand a good brand?

NOTE: Not all the models of Felicity battery has falsely labeled capacity.
The company still have some models with the real capacity.
I suggest you look beyond the capacity when making a choice of lithium battery because there are some unhealthy lithium cells with the real capacity but will certainly collapse within a short period of time.
Since you don't know much about the identification, focus on the warranty policy of the company you want to buy from. I just hope the company will be sincere and be ready to render free services to you when the need arises.

24v 160ah 4kwh Lfp battery #850,000.
24v 130ah 3.3kwh Lfp battery #750,000
160ah and 130ah Eve cells 75k and #68,000 each.
Jbd Smart bms 100A 16S #77,000.
Jk Smart bms 150A 16S 2A balance current #152,000.
Jk Smart bms 100A 4-8S 1A balance current #78,000.
150A battery terminal connectors #7,500 a pair.
M8 copper battery terminal connectors #3,000 a pair.
M5 copper battery terminal connectors #1,700 a pair.

brightk:
bros.. person de get 500w out of 580 from pv u say e nor reach?

E reach oh my boss

Ealiserwest:
Best performance. U re getting almost 85% of ur pv

He should have more than that if the PVs are new and original.
My 3 years era pv generates 85% on a sunny day.

Tucode:
Please house, I already have 4 tubular batteries in my set up, I was thinking of doing a separate system with a lithium battery and probably use my current set up during the day since we have less load during the day. But I want to find out first if it's possible for me to merge my tubular batteries with the lithium battery in one system, to save me cost and all.

It's possible to parallel them but you may not be able to do it. It's very technical.
If you still want to keep your old system as a backup, then get a separate inverter and pv, and then run two separate systems.
I had a similar plan 3 years ago but I later sold my old system (inverter and tubular batteries) and build a solar generator (1kw 12v hybrid inverter with 12v 100ah lfp battery) as a backup system.

130ah and 160ah Eve Cells for sale @ 68k each and 75k each.

12v 160ah 2kwh for 430k.
24v 160ah 4kwh for 855k.
48v 160ah 8kwh for 1.7m.
160ah and 130ah cells available for sale.

Ferdiwar:
Sorry for the sad experience. I usually call or chat them to confirm availability before placing orders.

You can also explore other options like Longi from Solarco in Abuja (Mr. Fadi is a very helpful and reasonable person).

I used to buy from Solarco. This very customer wanted Jinko products.

Haykay2001:
Why do you choose 12v panel for this beautiful Instllation chief?

Let me cut the long story short. That was the available pv.
I was planning to use 2 pcs of 580w Junko pv but the of trouble/stress of bringing them down to Uyo from either Abuja or Lagos was too much.
As I'm typing this, I've 5 pcs of 580w Jinko pv in Abuja and I'm told to pay 30k each for the waybill.
Again, I checked and saw 580w pv in fouani store website on the 12th of last month and I made payment for 5 pcs. The following day, I was called and told that the 580w was out of stock. There was no higher watt pv and my customer didn't want to go for a lower watt pv.
I called for a refund and I was told to go my bank and apply for charge back. I went and applied and my bank later told me the money is already in the fouani store account that there's nothing the bank can do.
I called fouani customer service and I was told to wait. They later called me that the money was refunded to my account on Monday this week. I checked my app and I didn't see it. I will still go back to my bank and print account statement.
I will NEVER EVER buy anything from fouani store again. The stress of getting a refund is unbearable

1.280m Installation.
12v 2kva/1.6kva hybrid inverter with 80a Mppt, 450v max Voc and Mppt voltage range of 50-430Vdc.
6pcs of 180w pv.
12v 160Ah LFP battery.

Valto:
4S-8S JK 1A active balancer Bluetooth bms available
6S-21S JBD 120A Bluetooth bms available

How much?

Who gets 100a 8s smart Jbd should let me know urgently.

Ooreofegrace:
Panels are 568w x3
The only heavy load put on the system is the pump.. Which is abt 750 or so watt..
The fridge and freezer is inverter which sometimes stayed btw 114 and 60w..
Tv is below 30w also decoder..
Then bulbs..

Abt the charging parameters, it was left on default. Will hv to get battery charger to check the level..

The person you did the installation for may be having serious issue with load management. You're not there with them and I'm very sure their consumption is more than what they reported to you.
What is the idle power consumption of the 4.2kva 24v inverter?
The max inverter capacity I give for 24v system is 3.2kw.
In summary, add the inverter idle power consumption, add the hidden loads, reduce the 50% usable dod battery capacity to 75%, and you will know what to tell them.
I may not know the name of your tubular batteries and I may not know the purchase source as well but you should know that about 80% of these product's capacity are overrated.
My first installed system has 4 pcs of 230ah Genus tubular batteries with 5.5kwh usable dod capacity but I reduced the usable capacity to 4.1kwh (75%) and I've never discharged them below 60%. This is what made the batteries to last till I sold them and the person who bought them are still using them today without any issue.
Advise them to buy a good battery meter reading like Victron BMV.
The 1Hp pump maybe consuming 1kw depending on the distance of the installed machine and the cable size and parts of the consumption may as well pick up from the battery without their knowledge.

mctfopt:
Lithium ion..

It doesn't tolerate any forms of abuse. Very unfortunate....

mctfopt:
I've seen a small pack of 1kwh lithium gut a shop. Everything inside was gone. This happened in the afternoon with people around. Battery fire is no joke. Hence best to use the best of everything. The cause of the fire was charging the battery directly without a charge controller.

The major enemy of not just the lithium phosphate, lithium ion but also the lead acid battery is OVERCHARGING.
Unfortunately, some people who do not accept advise will still fall victims of damaging their systems. The working voltage range of lithium phosphate cell is 3.000-3.400v. Sometimes, I wonder what people are really looking for at the upper knees of the charging curve where cells charging are highly competitive, especially runner cells. If we can't get the advertised capacity at the working voltage range, then the purchased cells must be that of 2nd LIFE.
My LFP battery bulk/float charging stop at 3.400v
I can leave my system on and travel to anywhere without having anything to worry about the system failure.
A proper designed and installed system with all the safety precautions taken makes us have rest of mind.

luvlyoracle:
Good to hear. Earlier I had thought the self discharge test applies to only li-ion cells never knew it’s same for Lifepo4’s too.

The voltage any cell settles at I would assume is the remaining capacity in the cell using their percentage discharge graph right?

Self discharge rate occurred to all the battery
chemistry.
When the lithium phosphate cells are charged to the upper limit of about 3.6v or thereabouts, the self discharge rate is rapid at that upper knees, but it's very slow at the working voltage range.
Some will decline rapidly down to 3.55v before the slow process begins, some will decline down to 3.40v and still some will decline down to 3.35v. All these points are considered float points and below 3.35v is considered a weak cell.

luvlyoracle:

The first time I am seeing 28.4 on an Lifepo4 battery .

It has always been there but the sustainability depends on the quality of cells.
This is one of the criteria we used to check the quality of cells.
After the top balancing, I've some numbers of days I usually leave them for equalisation before loosing the bus bars from the battery terminals, After loosing them, I still have some numbers of days I keep the individual cells to monitor their individual decline status to know the point all of them will finally settle down. This is the point I draw a conclusion on how quality the cells are and how they can retain voltage while working together within and outside the working voltage range.
This process much get to this point before I couple my cells.

Dam5reey:
Good Job! Voltage shows an excellent sign.

My boss wey dey slap me every time for here
I appreciate your positive contributions here.

24v 130Ah 3.3kwh lithium battery for 760k.

FOR SALE!
Eve Cells 160Ah 84k each.
Eve Cells 130Ah 75k each.
Jk Smart bms 8-24S 150A 155k each.
Jbd Smart bms 16S 150A 130k each.
Jbd Smart bms 16S 100A 110k each.

I've not been able to see a comprehensive datasheet of this inverter online. My friend bought it about a year ago and he doesn't know where the manual is.
He now wants to use it with the lithium battery and I want to find out from anyone that have used it before.
Does it have flexible charging parameters that are compatible with the lithium battery?
Does it have Lvd?
I know most Pwm CCs can't charge lithium battery effectively

Dam5reey:
I wrote Story because you typed about cell capacity that is out of context.
I asked a direct question, Just put the answer.



I was expecting a simple answer which is 50AH cell is sold at a price close to 100AH. and not that it sold at half of the price of 100AH.

I typed this for helping purposes. I felt bad when I read the guys post.

Even with the quality grade B cells, sometimes, we built an average HDF plywood box with daly smart bms, normal battery terminals, a small display for people who are struggling to raise cash. We shouldn't be looking for huge profit every time.

Dam5reey:
I wrote Story because you typed about cell capacity that is out of context.
I asked a direct question, Just put the answer.



I was expecting a simple answer which is 50AH cell is sold at a price close to 100AH. and not that it sold at half of the price of 100AH.

Quality grade B cells with the advertised capacity Sir.
If you have any doubt about it, let me know Sir.

Dam5reey:
Story, which cell are you packing for 12.8V 100AH that is selling for 250K?
and which one is in the 25.6V 50AH that is selling for 385k?

Quality grade B cells with the advertised capacity Sir.
When you say "story", are you arguing with the cycle life of various cells EVE manufactured or you're arguing with the price range I posted for the 12v 100ah and 24v 50ah cells?
Let me understand you Sir

Dam5reey:
Something is not adding up.
why is 12V 100ah 250K and 24V 50ah is 385k?

Cycle life varies and that is what affects the price.
If you go through EVE batched and matched grade A cells list, you will see various cells with different cycle life and charge/discharge rates.
50Ah has 1500 cycle life with 0.5C/0.5C charge/discharge rate.
Another 50Ah has 7000 cycle life with 1C/1C charge/discharge rate.
101Ah has 2000 cycle life with 0.5C/0.5C charge/discharge rate.
102Ah has 5000 cycle life with 0.5C/0.5C charge/discharge rate.
280Ah has 8000 cycle life with 0.5C/0.5C charge/discharge rate.
304Ah has 4000 cycle life with 0.5C/0.5C charge/discharge rate.
306Ah has 10000 cycle life with 0.5C/0.5C charge/discharge rate.
628Ah has 8000 cycle life with 0.5C/0.5C charge/discharge rate.
When I checked the price a few days ago, 280Ah and 304Ah were sold at the same price because of cycle life.
In secondary market, cell vendors buy the rejected cells at different prices too and cycle life is part of the reason.....

nnadychuks:
Please and please:
Avoid solar generators at all cost. I mean a solar component that has both inverter and controller affixed in one board is total rubbish.

Why I’m saying this…

My qasa solar generator just explode on its own. It let off smoke 💨 and then boom 💥
Thank God the incident happened while I was at home, otherwise “Na only God know”

Now I’m looking to purchase an inverter+ controller (1500w -2400) if anyone has these items, used or new please quote me

Sorry for having such a bad experience. I thank God there was no casualty. Substandard/low quality materials like cables used in coupling the system and lack of ventilation may have contributed to the issue.
When I saw the cheap price range of solar generators online, I asked myself, where are these people buying their materials from?
We all know the price range of Psw and Msw inverters, lithium ions cells, lithium phosphates cells and Cc, irrespective of the capacity and company products
I've been using mine for a long time now and no issue. My neighbor has been using his for a long time too and no issue. If he noticed anything with the battery charging, I checked it for him through the bms screenshot request.

icjunior:
Please guys,my friend bought 2*220ah tubular batteries from someone but he's complaining that the batteries are weak already.

So will changing the electrolytes of the batteries resuscitate them? Or would it be a fruitless exercise?

And if it's adviceable,can I also get where to do it in Lagos, thanks.

Though the purchase price wasn't mentioned, but buying 24v 220ah used lead acid with usable capacity less than 2.6kwh isn't economical at all.
Getting a fully coupled 24v 50ah with the usable capacity of 1.15kwh at the range of 375k-385k is far better.

ti4c:
Hey guys, hope the holiday is going well.

I posted here a few months back for info and advice on budget, I appreciate your replies.

However, I need your advice as I have upgraded my solar battery and panel but it's not doing what I want in terms of power supply.

I upgraded it this Monday to a second hand mercury 220 ah battery(one year used), 400W panel and 30A charge controller(which I find useless cos I don't understand how to really read it).

My major use of the power is for my laptop (90W) cos I work from home and I need to be able to cahrge it at least twice a day. No fridge or TV, just the laptop, DC fan, phone, and bulbs.

During the day it charges laptop fast and carries the fan without issues.

The problem is that the battery doesn't last after sun goes down. Charging phone doesn't seem to do anything to the battery, it's when I plug the fan or laptop after sun down, it will immediately start blinking indicating low battery. I feel like the battery has lost its strength or something else I don't know.

For today, I charged my laptop and phone with it around 12 pm, by past 2pm NEPA brought light, I turned it off, I didn't use it again till 9 pm and once I plugged the fan, it started indicating battery low again, so I removed the fan. But right now my laptop is fully charged but still plugged in but it's not blinking but once I plug the fan it starts indicating battery low... I didn't understand how that is working.

I need your expert advice because I intend to return it on Wednesday and get a 120 ah new gel battery(that's what I initially wanted to buy).

Thank you!

If your inverter charging parameters are compatible with lithium battery, then buy fully coupled 12v 100Ah lithium battery at the range of 230k-250k and have rest of mind.