Sorry, have you tried loading it beyond the previous one? may be this new model has advance transformer

JUO:
Sorry, have you tried loading it beyond the previous one? may be this new model has advance transformer

It has a different display that the other one, and flunctuations in input voltage at at given time makes it difficult to compare.the old 10kva has 25%, 50% 75% load graduations, while the new has 10%, 20% to 120%
2ndly, i opened it up, and its same sized transformer in both of them!.A 5kva increase should have a significantly larger transformer.

Its good am within the 7 day purchase window, will kukuma return it and get my money back.
Bought my original 10kva 50k back then.present day 10kva is 110k, while the so called 15kva is 160k

ojeysky:
5.4KWH 24V lithium landed, will put to use within the week for testing before sharing my experience compared to my current 300Ah 24v Lead acid.
#LifePo4NewBie

Day 1 with lifpo4.

My night loads was the same (or even more because I did put on my 1.5hp GenPal for about 20min) and I still have 26v reading on my display.
It outperformed my lead acid significantly as I will be at 24.5v if it were my 300AH lead acid.

In other to reduce the long speech I think the attached picture should summarize the difference between lead acid and lifpo4 experience and you may see my signature for more detail log reference. Perhaps it's just a coincidence but it seem my system efficiency was better. Including temperature of inverter.

I am wowed! with just a day performance that I have experienced with this thing and I am wondering if this will continue in months to come. Whether 4 quanta will have given me the same experience is what I don't know but one thing I know is that the weight and space of a quanta alone na worry.

How I got mine: Meet with a guy remotely who deals in lithium. So he coupled for me 16 EVE LF105 to make 24V 5.4kwh (actually nominal is 25.6 as each cell is 3.2V) and ofcourse it comes with a BMS and voltage indicator.

Price: 450k - I checked price of the cells and estimate cost of materials he used to conclude that it was a fair price.

His contact is on the battery sticker but you may also PM me if you like to have his details. He was quite professional with me though I have not meet him physically before but took the risk.

ojeysky:
How I got mine: Meet with a guy remotely who deals in lithium. So he coupled for me 16 EVE LF105 to make 24V 5.4kwh (actually nominal is 25.6 as each cell is 3.2V) and ofcourse it comes with a BMS and voltage indicator.

His contact is on the battery sticker but you may also PM me if you like to have his details

What's the weight of this battery? Can you type out the contact as it's a bit hard to read off the picture? Thanks.

Impressive performance �

mctfopt:


What's the weight of this battery? Can you type out the contact as it's a bit hard to read off the picture? Thanks.

I have not put it on a weigh yet(will do that later today) but it feels like a 40 to 45kg pack. FWIW each of cells is 2kg and considering the materials used for packaging anything from 38kg is fine.
8 0 3 063 3202

Impressive performance �

For now yes but time will tell

nonoski:


Thank you very much

Coughing out N1.4m for batteries is not funny at all.

I double checked the set voltages so over charging is not the issue.

The charge controller is premium brand Victron and the inverter is Felicity.

I have used HA02 battery balancers for years without issues.

The 3 units of 4 batteries are connected to a Busbar so the Lenght of the wire (35mm²) are of the same Lenght.

I have made up my mind to change the batteries.

Why not just invest in liFePo batteries?... I'm just saying tho.

It ticks the safety box that you fear.

nonoski:


I totally agree this theory is flawed
I don't have energy for warranty wahala
I have had several nasty experience in the past so I don't even believe in warranty from a Nigerian business no matter how big they are.

You can still try bro. Luminous knows they are fucking up.

nonoski:




Here's my story.

I have a solar setup in my village
These are the spec:

* 16 nr 300 watts solar panel (Canadian solar) connected in 4S4P (4.8kw array) mounted on roof facing south.

* 12 nr 200ah luminous batteries in 48v 600ah connection

* 3 nr battery balancer

* Felicity 5kva hybrid inverter

* 250/100 Victron charge controller

* Combiner box 6 way

* Victron color control gx for remote monitoring

* 2nr Busbar

And other breakers and ancillaries.

Apart from installing the solar panels on the roof all other connections I did by myself.

The house is always unoccupied.
From February 2019when I completed the installation till November 2019 the house was only used about 10days duh the inverter is on 247

Usual load powered by inverter 24/7

A. 10 nr external 12w led security light connected to a timer switch so they come on 7pm and go off 6am

B. Mtn router

C. 3nr wireless wyze CCTV cameras

Total load less than 2kw from sundown to sunrise including 98w/h of the inverter self consumption.

The Felicity inverter is set to shut down if voltage drops below 49v

I monitor the system every day remotely to make sure all is well. The voltage neva fell below 50.2v all throu from February till November.

In early December last month I decided to go to the village and prepare the house for Christmas but around 10pm the inverter tripped of (meaning voltage dropped below 49v).

I noticed one of the batteries dropped to 10.2v while the rest where around 12.5v and 17.1v after 30mins of charging.

After weighting all my options I decided to change only that battery.

However I decided to call in an expert to have a second opinion.

After running a load test on all the batteries it was only the new battery that was healthy the rest were barely surviving.

His theory is that the batteries were mostly on float all year long and it wasn't good for the batteries.

But the Fangpusun clone have BULK, ABSORB & FLOAT.Victron should have too.

Bulk is essentially a transition state on the way to Absorb and then Float.

There is no one voltage where your battery is in bulk but rather a continuum e g if you set your Absorb target at 14.4v and Float at 13.6v your battery will be bulk charging between 14v and 14.39v.

You can think of Bulk as the road or journey as your battery travels towards a full charge, Absorb as the period when you glimpse your destination closeby in the distance and you move towards end of journey with renewed vigor and Float as having arrived your destination and now taking a rest.

For your A&E experience I would say again you are always better off buying direct from source and bypassing the middleman - I say this even though I retail RE equipment The closer you are to the real source the better for you always always always.

earthrealm:

@bolded seems victron and by association dont include bulk voltage setting in their devices, only float and absorb..
How or what then does the battery use as bulk voltage when charging.
I have a fangpusun 50aD and the lack of bulk voltage setting is giving me concern, exchanged series of mails with seller, no resolution.
For batts like kung Long batts, whose recommended cycle voltage is 14.4v to 15v and absorb 13.5v to 13.8v,
How do you set the cc to charge at the bulk/cyclevoltage, since the cc/inverter doesnt recognize/assign charging voltage to bulk charging state

Talking about marketing fraud, i just fell victim to A&E dunamis 15kva servo stabilizer.
I have a 10kva of same make wch has served me ok for over 4yrs, but due to increasing load, i decided to upgrade to a 15kva. Ordered same via jumia.
Lo and behold its same size as my former 10kva, and even same weight when i put it on the scale!!...choooi a&edunamis, but why

viazi:

But the Fangpusun clone have BULK, ABSORB & FLOAT.Victron should have too.

NiyiOmoIyunade:
14v and 14.39v.

Did you mean 12v at bolded?

And yes your illustration is apt as usual. The way i see it is this:
Bulk- constant voltage supplied with max current drawn
Absorb- constant voltage reached, max current steadily dropping.
Float - constant voltage reached, max current reduced to a set tail current value. So voltage dropped to set value and current trickled in to keep things nice and full.

Float light on scc de give orgasm ehn.. IYKYK

Runx:

I have victronconnect v1.14 that come with firmware v.1.16 if you are comfortable with it. It will not ask you for any update.

Ok boss. Pls hit my siggy to drop download in my whatsapp. Thank you so much.

The bulk charging phase(constant current) is when the battery charger pumps maximum current into the batteries until the voltage rises to the Absorb value.

It then switches to the Absorb phase (constant voltage) where it holds the battery voltage constant for a certain time limit or until the charging current drops to a percentage of the battery capacity. I have mine set to 2%.

At which point it changes to Float phase and drops the voltage to the "Float setting" and trickle charges to maintain that set-point.

earthrealm:

seems victron and by association dont include bulk voltage setting in their devices, only float and absorb
How or what then does the battery use as bulk voltage when charging...

Fangpusun flex max 80a 140k
Fangpusun flex max 60a 120k
Fangpusun blue solar 30-70a 35k for 30a, 46k for 50a, 100k 60a, 110k for 70a
Xtm 3.5kw/48v 460k
Available

eleojo23:


If you will be using only one battery, make it 500w-600w for faster charging. 300w will do but it may not charge the battery fully before sundown.

Thank you very much.

DUNKA:
I will not go back to the past but just For the records Frankie you never made an offer for me to return the car battery you sent to me that was leaking fluid and did not last up to 6 months before u had to change. Anyway, it is like you can never change and you keep it up your downfall will be sooner rather than later. Just keep in mind that You need customers more than they need you. One day monkey go go market he no go come back. A good name is more than gold. Do have a pleasant year ahead.

Good morning Sir , yes guess you're confusing all due to short memory ! The last deal before said car battery supply was your outback mate system supply. Battery spillage et al must be transportation issues but it's all well .. I won't pray for anyone downfall as you consistently do since no man is a creator of himself and things might backfire your way ... All said and done >> Apologies once again !

@bolded, I'm not sure you should be swayed by the difference, as it's not a true indication of battery capacity.
While Lead-acid battery voltage will sag under heavy load and Lithium remain fairly constant, the energy consumed should remain the same.
5kwh Lead-acid useable capacity = 5kwh Lithium useable capacity.

I believe why you witnessed an improved performance is because of the higher Lithium "useable" capacity.

ojeysky:


Day 1 with lifpo4.

My night loads was the same (or even more because I did put on my 1.5hp GenPal for about 20min) and I still have 26v reading on my display.
It outperformed my lead acid significantly as I will be at 24.5v if it were my 300AH lead acid.

Barezzi:
My back up time is getting poorer by the day and i'm also using Luminous, so you may be unto something here.

Boss, quick individual battery test would reveal defective ones fast .. It's best you trade them off fast before they turn scrap

nonoski:


I totally agree this theory is flawed
I don't have energy for warranty wahala
I have had several nasty experience in the past so I don't even believe in warranty from a Nigerian business no matter how big they are.

Wow can't believe warranty issue directly with company is this tasking ! Give it a try if batteries aren't above a year old okay

No I meant 14v to 14.39v in the specific example I gave.

Battery charging may be considered to be an electrically driven chemical reaction - a typical lead acid battery is not really charging properly until it has entered the 14v range.

Oga Barezzi gave a precise technical explanation of Bulk (constant current), Absorb (constant voltage) stages - this tends to be more easily demonstrated with an on grid charger which puts out steady amps and volts than a solar charger where the current and voltage output may dance around with prevailing weather and clouds.

Trippledots:


Did you mean 12v at bolded?

And yes your illustration is apt as usual. The way i see it is this:
Bulk- constant voltage supplied with max current drawn
Absorb- constant voltage reached, max current steadily dropping.
Float - constant voltage reached, max current reduced to a set tail current value. So voltage dropped to set value and current trickled in to keep things nice and full.

Float light on scc de give orgasm ehn.. IYKYK

If my experience with the yellow Luminous is anything to go by, it is best to jettison the battery bank now or seek a warranty replacement if still under warranty.

The problem with a replacement is that you are probably still getting thesame crappy batteries and postponing the evil day.

kiekie1:


Boss, quick individual battery test would reveal defective ones fast .. It's best you trade them off fast before they turn scrap

Kexs:


Lol if you're bitter why do you want to spread your bitterness and drag me down with you? . I made a comment and review based on my experience. is it that you're too lazy to write your own comment/ review or you're just looking for cheap attention. Space never finish for nairaland. Write your own comment or review or experience without dragging me into brah. Simple it's a free world and nairaland. Peace out ✌️

Boss let some issues slide .. Ask him his grievance , you would hear shitty kiddy tales.. I see some drafting forgotten issues like they were admin, moderators or even old members but all are fallacy to me ! Ask him as a man why he acts like a woman , how much do I owe him, you will hear nothing ,, pls let him rant in vain..DStv,gotv ,swift etc keeps calling & bugging if you don't subscribe for a while but they won't talk or make noise .. Phcn has lot of unappealing issues but they won't go query them ,and so many other irregularities in our decayed system .. We have some forgetting lot of good deeds and quoting unnecessary old marketing issues thinking that would mar ones image but the harder they keep trying , the stronger one gets by God's grace !

Yes, but a 13.8kwh BYD B-Box "drop-in" replacement will set me back over N3.5m
Do we really need 2 kidneys?

DUNKA:
looks a like an Axpert clone branded under Felicity. Those inverters charging parameters do not give it a true and proper 3 stage charging of bulk, absorbtion and float. The behave more like bulk chargers. Before you go for the change of all your batteries you may look at the inverter you are currently using. Regards

He is not using the inverter to charge but the victron i guess so that dosen't play a role

Barezzi:
Yes, but a 13.8kwh BYD B-Box "drop-in" replacement will set me back over N3.5m
Do we really need 2 kidneys?

It doesn't have to be that expensive, unless you think the quality of LFP I got is questionable

Barezzi:
@bolded, I'm not sure you should be swayed by the difference, as it's not a true indication of battery capacity.
While Lead-acid battery voltage will sag under heavy load and Lithium remain fairly constant, the energy consumed should remain the same.
5kwh Lead-acid useable capacity = 5kwh Lithium useable capacity.

I believe why you witnessed an improved performance is because of the higher Lithium "useable" capacity.

Yes I agree it's not a true indication, I tried to use the daily battery discharge(see attached picture earlier shared) and the voltage to correlate things as well.

Meanwhile is there any better(close to accurate) way to determine true capacity of batteries?

Thanks

mcTrinity:


Sorry for the loss... It's a very big one.

Though since this Luminous Blue came out, I've only been hearing bad reviews for it. Their yellow mode was a little better.
As a matter of fact, a Solar Company here in Eket carried out a capacity test on the Luminous blue and got about 87%.... Very poor I must say.

I also know a boutique that is using 1.5KVA/24V Sukam falcon plus with the Luminous blue. Loads are just the lights. No fan sef, just lights and they have never drained it to alarm level. After 9 months, another story... And two or three other negative feedbacks from users.
I've been discouraging people from going for this Blue model

I believe it's a factory issue. Same thing that happened to PRAG battery sometime. After they modified their battery and it started have early failures.

I might not be able to suggest the best battery, because I've not actually used or installed all. But Over 5 years now, the two batteries I can vouch for are Quanta and Safepower.... Both are Indian

From Chinese angle, I've also come to trust Mpower (distributed by AirWave Ltd)... I do use them for clients on low budget.

All the aforementioned are from my personal perspective.

As for batteries always being on float charge posing a problem, to me it's a fallacy. As long as the float voltage of the charging source (Inverter or PV) is within the recommended voltage of the battery manufacturer. For example, almost all inverters have a default float voltage of 13.7/13.8V. But Quanta strictly recommends 13.5V as the float voltage. So question is what happens when you have Quanta batteries that are being subjected to constant float voltage of 13.8V?
These days, people just randomly choose Inverter and batteries without any form of regards to conformity and compatibility.

Finally, looking at your setup, it can be seen that your battery arrangement calls for long battery interconnecting links at some point. I hope ALL the links are same length and same size. Not that some would be short and others long...

As for the Battery balancer, if it's HA02, then I believe it shouldn't be a problem. Unless it's all those Sukam and few other "unbalacing" balancers.


Once again, sorry for that heavy loss. 12 batteries no be beans, even if you're Chevron manager ( lolzzz)

Cheers

Hello, I want to mount a 2.5Kva or 3.5Kva inverter with good battery. Can I have your number so we can close the deal. Thnx.

ojeysky:


Yes I agree it's not a true indication, I tried to use the daily battery discharge(see attached picture earlier shared) and the voltage to correlate things as well.

Meanwhile is there any better(close to accurate) way to determine true capacity of batteries?

Thanks

Victron BMV 702------712

ojeysky:


It doesn't have to be that expensive, unless you think the quality of LFP I got is questionable

Sorry but it is if you want all this completely finished product with Warranty, I am using the Pylontech US20000 Plus that cost from my end 1200€ i am now upgrading to 2x us2000plus plus 1x us3000plus which when you change to Naira cost like the 2 Kidneys. but i have the absolute warranty i have testeted the 1 us2000plus for over one year i have about 267 circles on it i can add the others because it is modular

you can check my graphical interface through this Link :- https://emoncms.org/dashboard/view/graphs

220amphs EASTMAN tubular battery available, #95000. Contact us on 08168986461

Solar equipments supplier by us with affordable prices. Contact us today on 08168986461