₦airaland Forum

Hello experts!

Please can I get a cost breakdown for a solar system that can run these for extended periods, not necessarily 24 hours?

1 Refrigerator, 2 TVs, 8 10w bulbs, microwave, 2 fans, phones, 1 laptop, blender when needed.

What would be a realistic budget?

Thank you!

gsparks01:
Hello experts!

Please can I get a cost breakdown for a solar system that can run these for extended periods, not necessarily 24 hours?

1 Refrigerator, 2 TVs, 8 10w bulbs, microwave, 2 fans, phones, 1 laptop, blender when needed.

What would be a realistic budget?

Thank you!

Microwave?

Which type of fans? Rechargeable fans?

How many watts blender?

ask4bk:
I just told you it's a SCIENTIFIC CONSENSUS in the area of lifepo4. Use your Google and search on life experiences of long time users of lifepo4 charging at high voltage like 14.6v.
Don't take my silly words. Go do your research and maybe come back to tell me thank you for opening your mind.

You are free to keep charging at 14.6v or even 15v if you want. Shey you need full battery. You'll get it.

You are right. Lithium based battery chemistries last longer if they are not always getting maximum charge. That is why it is suggested that the best way to protect your laptop and phone batteries is not to charge them beyond 80% or thereabout. Full charges stress lithium batteries.

gsparks01:
Hello experts!

Please can I get a cost breakdown for a solar system that can run these for extended periods, not necessarily 24 hours?

1 Refrigerator, 2 TVs, 8 10w bulbs, microwave, 2 fans, phones, 1 laptop, blender when needed.

What would be a realistic budget?

Thank you!

24v 4.2kw hybrid inverter 420k
24v 7.1kwh lifepo4 lithium battery 1.4m
6pcs of jinko 555w panels 750k

instalation cost and materials, approximately 300k to 400k

bigrovar:
https://vrm.victronenergy.com/installation/453590/share/df9180a7

Bro, I really love that you can remotely see your setup and consumption online. I've been watching your dashboard since yesterday like I de watch big brother Nigeria.

I'm curious to know... What's the lithium battery size you are using now?
What's the total amount of solar panels you are using and brand? I'm surprised that at early morning with cloudy weather you already getting 3.6kwh from panels.
What is giving out this info we see on your dashboard? The inverter? Or something else you added to your installation? What brand? Connected to Internet?


Sorry, too much questions. Pls help me answer the ones you can. Thanks bro

sheDD:
how much be the super speed battery

260k sir

oweniwe:
Microwave?

Which type of fans? Rechargeable fans?

How many watts blender?

non rechargeable fans. 1000w blender

zeestone99:
Hello House

Available now

8.3kwh 24V lithium Battery

8000 cycles
4.3 inch touchscreen
200a charge and discharge.
1A Active balancer
Communication: CAN, RS485, RS232
Supports Bluetooth
Parrallel support
Low Voltage and Over voltage protection
Over current protection
Over temperature protection
Shortcircuit protection
Sturdy Metal case
Solid Handles
Warranty - 3 years

Price - 2 million

Call/chat - 08117398294 to order

Greetings to the house
We have Lithium batteries available.
DM to place orders.
Call/chat - 0,811739829.4

8.3kwh 12v jk bms 120a , Active balancer,, Bluetooth, voltage and battery capacity display, 6000cycles - 750k

8.3kwh 24v 150a jk bms, Active balancer,, Voltage Display , Bluetooth, 8000 cycles, sturdy metal casing - 1.6m

8.3kwh 24v 200a jk bms, Active balancer,, RS232/RS485/CAN ports, battery SOC indicator led light, 4.3inch jk screen, Bluetooth, 8000 cycles, sturdy metal casing - 2m

16.6kwh 48v 150a jk bms, Active balancer 4.3inch jk screen, Bluetooth, 8000 cycles, sturdy metal casing - 3m

16.6kwh 48v 200a jk bms, Active balancer, RS232/RS485/CAN ports, battery SOC indicator led light, 4.3inch jk screen, Bluetooth, 8000 cycles, sturdy metal casing - 3.6m

Dam5reey1:
These are 2 different days..

The Panels are 5, units of 570w which make its total of 2850w, but in the picture you can see this is what is going into batteries 2716w, there was about 150w load inverter has idle consumption too.

The inverter do show 3000w+, even If inverter dey lie, this Shunt has more precision considering there was load on and battery are being charged at 2654-2716w say a lot about the panel output over 100%

What is the name of this CC

ask4bk:
Hi, a lithium charger that charges to max 14.6v is destroying the lithium battery fast.
It's not good to charge lithium that high, and that's what many don't know and they killing their battery like that and it won't last for years as expected. It's tubular and gel that can go that high.

For lithium, it's advised not to go higher than 14.2 (which is even till high). Best voltage charge setting is 13.9v or 14.0v.

True your lithium won't charge full, but you are sure your lithium will do 15 - 20 years with that. If your battery has editable bms, you can charge it so that 3.5v (which is 14.0v) be 100%.

This is an info many Nigerian lithium dealers and installers don't know.

You could have a point, and it is also a reinforced learning for me. I believe that explains why recent laptops and phones are designed to charge to a maximum of 85%

But then, most people will not have their batteries getting charged to that max voltage everyday due to improperly sized panels and insufficient grid supply, so the likelihood of the outcome of the risk of max charging is very low.

Also, let us talk about the trade-off between under-charging to have the battery last for 20 years but getting less backup time, and max charging to get more backup time (probably 2 hours more) and have the battery last for 5 - 6years.

What are your thoughts?

Hello house,
Any one know where I can get a brand new kan 1KVA PSW Inverter?

This dashboard from Bigrovar https://energy.openculture.org.ng/dashboard/view?id=49 will answer all your questions

ask4bk:
Bro, I really love that you can remotely see your setup and consumption online. I've been watching your dashboard since yesterday like I de watch big brother Nigeria.

I'm curious to know... What's the lithium battery size you are using now?
What's the total amount of solar panels you are using and brand? I'm surprised that at early morning with cloudy weather you already getting 3.6kwh from panels.
What is giving out this info we see on your dashboard? The inverter? Or something else you added to your installation? What brand? Connected to Internet?


Sorry, too much questions. Pls help me answer the ones you can. Thanks bro

ask4bk:
Every lithium company discourages charging at 14.6v. Instead of Dam5reey1 to learn from this community he is insisting in his wrong opinion.

I bought cworth 20kwh lithium battery the other day, and it clearly said to set charging voltage to 55.6v which corresponds to 13.9v.
The Aurora lithium I'm selling said same. Sako, Anker, even Japanese Samsung lithium outside the country insist on same. Lithium doesn't like being charged to 100%.

When you buy a new Samsung phone now, it tells you, you can charge your phone to 100% oh but we don't advice it. Every phone and laptop has a charging option to charge only to 80-85% so that your phone lasts for long.
My S21 is going to 4 years now, and I always charge only to 80%. My phone still stays a whole day like new, compared to my older phones I always charged to 100% and after 2 years battery is a mess. Phones and pc lithium ion.
Lithium ion and lithium phosphate should never be charged to 3.65V.

Pylontech charges at 56 to 56.8, in your opinion, is that a good range. And secondly, dont you feel a brand as big as Pylontech would have considered all these technicalities before setting their battery bms?

kristien4:
Pylontech charges at 56 to 56.8, in your opinion, is that a good range. And secondly, dont you feel a brand as big as Pylontech would have considered all these technicalities before setting their battery bms?

Pylontech confirms what I said.
56 = 3.50v
56.8 = 3.55v

They clearly tell by this never to charge at 3.65v which is 58.4v.

Though they gave you that range, they'll work well and save the battery in long run, but the best option is 56v. You can even go low to 55.6v if you can set it yourself.

Its also good never to discharge below 48v or 3.0v per cell. You can oh, but as I said, it's not adviced for health of battery.

Iinnov8:
You could have a point, and it is also a reinforced learning for me. I believe that explains why recent laptops and phones are designed to charge to a maximum of 85%

But then, most people will not have their batteries getting charged to that max voltage everyday due to improperly sized panels and insufficient grid supply, so the likelihood of the outcome of the risk of max charging is very low.

Also, let us talk about the trade-off between under-charging to have the battery last for 20 years but getting less backup time, and max charging to get more backup time (probably 2 hours more) and have the battery last for 5 - 6years.

What are your thoughts?

Its not really undercharging if you understand lithium technology. Whether you charge at 3.45 or high as 3.65v, once you stop charging and add load to lithium, it'll quickly drop to a settled voltage of around 3.31-3.32v and start an almost straight line discharge. From 3.65v to that 3.3v will take like 10 minutes. From 3.45 to 3.3v will take like lesser 5 mins. So you are not gaining 2hours as you imagine.

The only difference is that in lower voltage, you are protecting your battery and in higher one you are stressing and killing your battery. At 3.45v you battery is like 90% full. So it's better you use lower voltage to charge and make your battery last for years than forcing it to 100% 3.65v or 14.6v or 29.2 or 58. 4v.

obitobe:
This dashboard from Bigrovar https://energy.openculture.org.ng/dashboard/view?id=49 will answer all your questions

Wow... Very interesting.

You de consume for your house oh.
10kwh solar panels is huge.

I use half of your setup.
14kw lithium battery.
4.4kw solar panels
5kw inverter.

I've no AC. Just fans and TV and lights at night. Every morning, before 10pm battery is already filled up to 100%.

All I need now is how to put my system online like this your own. I use felicity inverter.

Thunderbolt:
CLEARANCE SALES:

36 units of fairly used 350w Felicity solar panels in good condition available at 50k each.

Location: Kudirat Abiola way, Oregun, Lagos.

Contact: 0812-345-4250

SOLD

ask4bk:
Wow... Very interesting.

You de consume for your house oh.
10kwh solar panels is huge.

I use half of your setup.
14kw lithium battery.
4.4kw solar panels
5kw inverter.

I've no AC. Just fans and TV and lights at night. Every morning, before 10pm battery is already filled up to 100%.

All I need now is how to put my system online like this your own. I use felicity inverter.

Why not use AC at night then? You're effectively just wasting energy that you could be using? If your battery is already filled by 10am right now, surely you could run your AC all night and still have your battery filled by 1/2 pm.

HeavenlyBang:
Why not use AC at night then? You're effectively just wasting energy that you could be using? If your battery is already filled by 10am right now, surely you could run your AC all night and still have your battery filled by 1/2 pm.

If I run AC, that thing that consumes 1kwh, by morning won't it finish my 14kwh battery? Except i run it for like 6 hours at night only.

But truth be said, during the day the panels are wasting coz after charging at 4kwh from solar, once its filled up at 10am, it reduces to 400w which is all I use during the day. Over 3kwh from solar that could handle AC is just wasting.

To consider again is, do you think it'll stress the 5kva felicity inverter?

ask4bk:
If I run AC, that thing that consumes 1kwh, by morning won't it finish my 14kwh battery? Except i run it for like 6 hours at night only.

But truth be said, during the day the panels are wasting coz after charging at 4kwh from solar, once its filled up at 10am, it reduces to 400w which is all I use during the day. Over 3kwh from solar that could handle AC is just wasting.

To consider again is, do you think it'll stress the 5kva felicity inverter?

1hp ac in gen mode consumes 300-350W

mank1234:
1hp ac in gen mode consumes 300-350W

Oh.. Didn't know that

Ok

ask4bk:
Every lithium company discourages charging at 14.6v. Instead of Dam5reey1 to learn from this community he is insisting in his wrong opinion.

I bought cworth 20kwh lithium battery the other day, and it clearly said to set charging voltage to 55.6v which corresponds to 13.9v.
The Aurora lithium I'm selling said same. Sako, Anker, even Japanese Samsung lithium outside the country insist on same. Lithium doesn't like being charged to 100%.

When you buy a new Samsung phone now, it tells you, you can charge your phone to 100% oh but we don't advice it. Every phone and laptop has a charging option to charge only to 80-85% so that your phone lasts for long.
My S21 is going to 4 years now, and I always charge only to 80%. My phone still stays a whole day like new, compared to my older phones I always charged to 100% and after 2 years battery is a mess. Phones and pc lithium ion.
Lithium ion and lithium phosphate should never be charged to 3.65V.

Never be charged to 3.65.. LMAO.. who is teaching you all these, US community who are not major battery maker?

According to All LFP manufacturers, they say test at 1C from 3.65 to 2.5V..

Attached is EVE.. so quoting community or video for charging parameters is irrelevant...

Start testing things yourself.

Anyways, we successfully converted 2, units of 24V 280AH into 48V 280AH, single Unit, using the available resources..

14.4kw + 6kva..

ask4bk:
If I run AC, that thing that consumes 1kwh, by morning won't it finish my 14kwh battery? Except i run it for like 6 hours at night only.

But truth be said, during the day the panels are wasting coz after charging at 4kwh from solar, once its filled up at 10am, it reduces to 400w which is all I use during the day. Over 3kwh from solar that could handle AC is just wasting.

To consider again is, do you think it'll stress the 5kva felicity inverter?

A 1hp inverter AC is only going to take about 4kwh overnight. Use energy, man. You're leaving so much on the table as it is now.

An AC won't even tickle your inverter.

Dam5reey1:
Never be charged to 3.65.. LMAO.. who is teaching you all these, US community who are not major battery maker?

According to All LFP manufacturers, they say test at 1C from 3.65 to 2.5V..

Attached is EVE.. so quoting community or video for charging parameters is irrelevant...

Start testing things yourself.

Bro, we've people in the house here who literally make lithium batteries like Valto.
When they do their test, and balancing, they charge to full 3.65v before selling to you.
But they don't expect you to charge that high if you want your battery to live long. If you don't, they don't also mind because in few years you'll run back to them buying another one.

You just read in comments above that Pylontech, cworth, sako, anker etc all tell you to charge with range of 3.45v-3.55v. No company will tell you to charge at 3.65v if want to be sincere and protect their good name.

Even your phone maker tells you not to charge your phone to 100% but rather 80%. You think they don't know what they doing telling you that?

ask4bk:
Wow... Very interesting.

You de consume for your house oh.
10kwh solar panels is huge.

I use half of your setup.
14kw lithium battery.
4.4kw solar panels
5kw inverter.

I've no AC. Just fans and TV and lights at night. Every morning, before 10pm battery is already filled up to 100%.

All I need now is how to put my system online like this your own. I use felicity inverter.

Are you on 48v with each of your cell being 280ah? If not, what is the configuration of your cells?

Also, I see you use 8 units of 550w Jinko panels. How are they connected and with what controller?

ask4bk:
Bro, we've people in the house here who literally make lithium batteries like Valto.

When they do their test, and balancing, they charge to full 3.65v before selling to you.
But they don't expect you to charge that high if you want your battery to live long. If you don't, they don't also mind because in few years you'll run back to them buying another one.

You just read in comments above that Pylontech, cworth, sako, anker etc all tell you to charge with range of 3.45v-3.55v. No company will tell you to charge at 3.65v if want to be sincere and protect their good name.

Even your phone maker tells you not to charge your phone to 100% but rather 80%. You think they don't know what they doing telling you that?

Ehehn.. these guys are Recommending Low charge profile to cover their flaws, in choice of cells and BMSes.

Cells can safely charge to 3.65V without any negative impact. They were designed to operate that way...

Limiting your usage to only 60% to prolong your batteries is a marketing gimmicks..

Just like Cells Cycles ratings are 8000Cycles 4000 cycles, they are just playing with numbers.

And never compare Cell phone batteries to LFP, they are different applications, different chemistry.

A Phone batteries experience up to 1C Charge and Discharge.. some Phone do up 3C..

Now check what your own LFP Batteries, they dont even see 0.5C not to talk of 1C. But you are there shouting dont charge to 3.65V as if the batteries were not made and tested to that voltage before getting rated 6000Cycles, 2500 Cycles labels you see.

Before Samsung release the Folding phone, you think they didnt testing how long you can fold the phone before wear and tear. And someone will just wake up and say for your phone to last long only open and close it once daily....

ask4bk:
If I run AC, that thing that consumes 1kwh, by morning won't it finish my 14kwh battery? Except i run it for like 6 hours at night only.

But truth be said, during the day the panels are wasting coz after charging at 4kwh from solar, once its filled up at 10am, it reduces to 400w which is all I use during the day. Over 3kwh from solar that could handle AC is just wasting.

To consider again is, do you think it'll stress the 5kva felicity inverter?

If it's an inverter 1HP AC the consumption is actually less. Yesterday I did 11 hours and 57 minutes m, let's just say 12 hours, and used 6.87kwh. that's like 0.57kwh per hour. So no, you won't use 1kwh every hour.

Dam5reey1:
Anyways, we successfully converted 2, units of 24V 280AH into 48V 280AH, single Unit, using the available resources..

14.4kw + 6kva..

Is the 16s case locally fabricated?

mctfopt:
Is the 16s case locally fabricated?

Yes, I customized it..

You guys are saying same thing in different ways.

Charge to 3.65v on initial installation but subsequently, charge to 3.50v each time.

Has anyone used LifePO4 up to 10yrs here?