₦airaland Forum

Peterlove11:
78w is better.....I remembered when I newly joined this group. 5kvas commonly consume over 100w on idle. Technology has come a long way. Imagine 10kvas now consuming less than 100w, isn't that wonderful. With increase in solar/renewable energy adoption and innovation in battery/inverter technology, in the nearest future nobody will be talking about idle load consumption anymore because it will become inconsequential

loluskysat:
Did you try it? My 1000W Inverter powers one plate of my double plate 2000W electric cooker.

Jefferyzz:
Are U connecting d panels in series or parallel. If it's series, Ur only concern should b d length of d cable cause of voltage loss.

Dageek:
Hello great people, I have been following this thread for a while, took my time to read through existing pages and was able to extract some information, but I’m really locked in between choosing battery.

Based on my power requirements, I would need at least 10kwh battery, this means the pylontech battery of that capacity will cost 4 million plus while felicity 15kwh (13kwh real capacity) will cost more less

This is not my first solar system, I have a 3.5kva 24v system with 2 flooded batteries and 8 x 300w Siemens panels, my plan is to upgrade to a bigger system using Deye 6kw from odyssey, 12 x 555w jinko panels from Fouani , Felicity battery from Naira lander here or Pylontech from Fouani

I would like to seek advise from people who have already used or installed either the Pylontech or felicity of that capacity, which one to choose considering durability, performance and ease of use.

Furthermore, I don’t want to use custom coupled battery because most of these batteries don’t offer communication port which is essential for the system I’m trying to build

Dageek:
Hello great people, I have been following this thread for a while, took my time to read through existing pages and was able to extract some information, but I’m really locked in between choosing battery.

Based on my power requirements, I would need at least 10kwh battery, this means the pylontech battery of that capacity will cost 4 million plus while felicity 15kwh (13kwh real capacity) will cost more less

This is not my first solar system, I have a 3.5kva 24v system with 2 flooded batteries and 8 x 300w Siemens panels, my plan is to upgrade to a bigger system using Deye 6kw from odyssey, 12 x 555w jinko panels from Fouani , Felicity battery from Naira lander here or Pylontech from Fouani

I would like to seek advise from people who have already used or installed either the Pylontech or felicity of that capacity, which one to choose considering durability, performance and ease of use.

Furthermore, I don’t want to use custom coupled battery because most of these batteries don’t offer communication port which is essential for the system I’m trying to build

skywalker95:
Good evening. Please, I want to decide between transformer based and hybrid inverter. My installer is saying I should use hybrid because it allows float charge and transformer based does not allow float charge even with an external charge controller. The orientation I have is that transformer based inverter is better than hybrid inverter for tubular batteries. I need advise on the right type of inverter to choose.

HeavenlyBang:
Love to see lifepo4 prices coming down. This is like 170k per kwh. Even cheaper than what you'll get from our in-house guys here.

mctfopt:
DIY sweet o

swagifted:
this deye battery don de approach BYD price point for nigerian market(5kwh version) ...

icjunior:
@isangjohnson

How can I reach you?

mangolpupa:
My people, I am looking for tokunbo uninterrupted power systems (UPS) system with pure sine wave output. Is there a used tokunbo market for it in lagos? If yes, does anyone have a sure plug.

bigrovar:
I have very little context so pardon me. I am responding to this purely on the face of the comment. I have been a solar user now for over 8 years. My first system was a 1.2kw (inverter) paired with a 480w solar and 2 Tubular batteries. That system paired with the grid was able to power basic house loads including a 130L chest freezer. The freezer ran for 4 hours a day.

I later upgraded the inverter to 2.4kw (Axpert inverter) and pared it with 1.8kw solar (and same Tubular battery as before) and ran the house completely off-grid from this setup for over 2 years (no NEPA setup)

In all I ran a 24v system from 2016 - 2022 and had most of my basic loads like fridge, freezer, occasional microwave, occasional ironing etc.

Of cause I did not run all the powerful loads all at ones but my point is, design design design. System design is 80% of the work on solar.

Key is performing a proper energy audit. Designing your system around the result of your energy audit. I used 2 tubular batteries, 2.4kw inverter and 1.8kw solar panels to power a 2 bedroom apartment completely off-grid and I lived quite comfortably (as comfortable as you can live without AC LOL)

Even now with a much upgraded system, you can check my daily usage averages at about 1.5kw (when I have 1 AC a freezer, fridge, fan, lots of computers - running in my home lab including a 64 Terabyte NAS with 64g ram and 8 core AMD Ryzen) all of this is running on less than 2kw and when AC is off house load drops to less than 1kw. My VRM numbers is there for anyone to see https://vrm.victronenergy.com/installation/453590/share/df9180a7

People don't use as much power as they think. It is fine and very possible to use a lean prudent, low power system you just have to have the whole system well designed from load to generation to storage.

I wrote a post about lean systems where I talked about how to perform a proper audit https://blog.openculture.org.ng/of-a-budget-solar-inverter-system-energy-audit/

I also made a video of my 24v solar setup back in 2018 which I shared here
https://www.youtube.com/watch?v=UmuA2sU_oIQ?si=6gG1Uw-av7SPaHaS

preyeamaorutobi:
Thank you sir for your response. I was told I need a 24V inverter to be able to run my fridge that was why I was thinking of upgrading the inverter to 2.5kva. I don't know if I'm in the right track but if getting just a another battery will solve the problem then I will be very happy.

bleexInc:
Hello House; kindly assist.
I have an inverter setup with 2 Amaron quanta 200AH battery and 1.5kva luminous inverter that I have been using for about 18month now. I use nepa light to charge it.
It use to have backup light of about 6 - 10hours when I started using it. My major load is my 65inches TV and 3fans with bulbs.
Now, the setup get fully charge in less than 2hours and get drained in less than 2hours.
What could be the problem.

Peterlove11:
I even prefer your charging range.....but does it get to 100% SOC with this ?
For now I will pick liPO over lead . Lead can easily go astray if you ain't meticulous in managing it. At least someone commented on that forum of how he has been using Lithium for the past 6years with no noticeable loss in capacity, which is impressive

Peterlove11:
This is an interesting read if any one is into lithium Phosphate or considering Lithium batteries.
What i learnt after carefully reading through the post...
1) Lithium cells don't like extremes of temperature. We must Put them in a cooled environment, they perform within 15c to 40c of temperature but best around 25c
2) They don't like extreme rapid charging either. The charging must be within the recommended C rate. Most times it's usually 0.2C
3) Recommended Bulk voltage is around 56.8v but most people on the forum advised 55.2v which I believe is preferable for longevity
Lithium Phosphate is a promising battery chemistry but it's not infallible and I hope our sellers are willing to uphold warranty when issues like this comes up

This made me start thinking of Lithium titanate, does anyone here has any experience with Lithium titanate?. Does it address any of the above issues as regards temperature and C rate charging and discharging

abuzz33:
If you want to know the difference between grade A and grade B cells, cycle them over several years and then check for capacity. Don't go on what is stated by a manufacturer. Lead acid is known technology. Lifepo4 is new technology with lots of unknowns.

One of the members here discovered 20% capacity loss of his supposedly grade A eve cells after just two years of usage or less than 800 cycles:

https://diysolarforum.com/threads/20-capacity-loss-and-bulging-after-2-5-years-of-use.88604/

Again I take the 6,000 cycle promise with a grain of salt and look at the warranties given which are often 5-10 years or max 4,000 cycles.

abuzz33:
Most lifepo4 batteries in the Nigerian market are not grade A and those that are are very expensive. Powmr has a history of fudging numbers and poor quality. I take their 6,000 cycles with a grain of salt.

As for lifepo4 it's a superior and more flexible technology for lots of applications. But basic stuff lead acid is perfectly ok.

I use both and this was the second set of luminous batteries I bought. The inverlast battery I used for 5 years and it was still as strong as ever. Luminous is a great rugged brand and testament to this is the fact that schneider bought them out.

Drgreatone:
Thanks boss. Package received.
2 pieces of Felicity 5kva IVEM inverter available in Abj for quick sale.
Reason for sale: Client is getting a bigger sized inverter
Whatsapp 0703five7123eight8

isangjohnson:
24v 160ah 4kwh lithium battery coupled with 100A 1A balance current Jk bms #820,000
24v 130ah 3.3kwh lithium battery coupled with 100A 1A balance current Jk bms #720,000
130ah quality grade B Eve cells @ #65,000 each
100ah quality grade B Eve cells @ #50,000 each
105ah quality grade B Eve cells @ #57,000 each
105ah batched and matched grade A Eve cells @ #62,000 each with the manufacturer test reports and 5 years warranty.
Jk smart bms 16-21S 150A 2A balance current @ #156,500
Jk smart bms 4-8S 100A 1A balance current @ #75,000
Jbd Smart bms 16S 200A @ #110,000
150A battery terminal connectors @ #10,000 a pair
100A battery terminal connectors feed through @
#8,000 a pair
M8 battery terminal connectors @ #4,000 a pair
M6 battery terminal connectors @ #2,000 a pair
Pure copper cable lugs @ #1,100 each
120A DC breaker @ #5,000 each.

Peterlove11:
Make it cheaper.....its not financially advisable in 2024 to buy used tubular batteries 2x 12 220ah (5280wh) for over 500k when you can get Lithium Phosphate 5kwh with more Discharge cycles for around 1m.

abbeymighty:
Good day all,
please who have a review on this PowMr hybrid inverter?

JustCryptos:
Good evening DIYers. Please bare with me, it's a long read.

I think it's time to bring this to the larger house maybe I'll be able to get tangible help.

I purchased my first lithium bank from the Jos guy (jemag) in December 2022. The capacity of the bank is 24v 110a. In August last year, I purchased another battery bank 24v 100a from @valto.

I already noticed that my first bank had a hard time running from night till morning. On most nights it does by 2am. Reason I opted to purchase a second bank.

My night time load is between 100 to 200w (two 60w standing fans). So at the very least, I expected the Jemag battery to last till morning.

The way my system is setup, I have 1.2kw and another 1.8kw on both sides of my roof. Each set of panels go to their individual CCs before going to the batteries.

I began noticing significant deterioration in March this year. The battery may be full but shuts down within 30 minutes after a 200w load is introduced.

Upon closer inspection, I noticed there was a bad cell inside. One of the cell drops from 3.2v to 2.4v within minutes, triggering the BMS to shut off.

When I contacted the Jos guy, he proposed sending the bank back to Jos from Port Harcourt, an unnecessary step if you ask me. I opted for DIY, opened the bank and saw that one cell was seriously swollen.

I notified him again but he was angry on why I opened the battery. He was particularly about sending the bank to Jos for them to compress but I refused. This guy barely responds to messages.

Mind you, he used Sinopoly cells to build the bank. I asked if he had a replacement and he said yes, I paid around 50,000 for the replacement in May 2024 only for him to call days later that the cell they found was swollen but in perfect condition.

With no alternative at hand, I asked him to send the so call battery. That was a mistake on my part. When it got to me, the rating was not only different (3.2v 200ah) but the battery was worst than the existing piece.

I decided never to contact him since he never checked back. I abandoned his battery since March.

Now to my question:What can I do to salvage my battery? Do I sell of as scrap? Are there buyers?

Drgreatone:
This isnt the complete price. U still av to get BMS, container/box, battery busbars, ?threaded rods and wood too. That's close to extra 70k upwards

GoodBoi1:
Interesting. What about the efficiency? Does it give close to 7.1kwh? That is what made me to just buy bluetti, because I will be sure of the capacity. I have a locally made power station but I don't even get half of the rated capacity.