₦airaland Forum

Haykay2001:
Baba na me one return am.. OK since you gat solution to the battery, kindly enlightening me. I hv lil to no knowledge abt packing lifepo4 or ion battery or any battery for that matter. Installation was done Nov 2024,all parameters set as it was sent from the seller.. Just like val do send me and his pack never for ones give me headaches which was even bought long before uncle sako product oo.

At 1st it do discharge up to 13% before it will alert for low battery before cutting off .later to 20% now 30% then it goes off.. If you are the customer, tell me if you Wont be worried? Maybe tomorrow now it will start going off at 40 them 50 and so on..

So if you rili do hv solution for me, kindly provide rather than saying someone discharge below so so so and so and what to return battery..

See as me they so, na solution i they always look for... Abeg if you hv one for me, do provide.. To send the product back will cost me gangan money and to send it back to me as well..

Abeg provide me solution to save me the stress of sending back.. Thanks chief ✌️


And anyone here who want to buy sako product both inverter and battery, I'am ready to sell at give away price

6.2KVA and 10kwh battery all 2mths use.. Everything gitting 2.55M can give away at 2M last..

Kindly quote this message or DM.. Thanks

You picture shows cells were discharged beyond what most people here considered as danger zone.. thats the only thing I pointed out. Average of 2.7V per cell is not a good way to Discharged LFP

There is no reason to Charge above 3.45V and not reason to also discharge beyond 3.05V...

You have not return the batteries yet?

I still checked on a Client's installation yesterday, Settings 05 on the inverter was on AGM where cut off is 42V range and batteries are DIY LFP.

As an Installer I see many things. Make we sha dey observe.

Apply series configuration to the panels and make sure to use the right gauge of wire

BlueStripper:
Good Morning Bosses,

Please I need your advice before I install my setup. So i bought this inverter with this data sheet and 9pcs of 485w Jinko panels. Kindly advice the best wiring connection for maximum yield.

I was thinking connecting all 9 in series, considering the inverters Imax of 22A.

Panel Datasheet below

Pmax - 485w
Maximum Power Current ‒ Imp [A] - 13.38a
Maximum Power Voltage ‒ Vmp [V] - 36.25v
Open-circuit Voltage ‒ Voc [V] - 43.76v
Short-circuit Current ‒ Isc [A] - 13.93

Please advice me.

Haykay2001:
At 1st it do discharge up to 13% before it will alert for low battery before cutting off .later to 20% now 30% then it goes off.. If you are the customer, tell me if you Wont be worried? Maybe tomorrow now it will start going off at 40 them 50 and so on..

On this issue, this has to do with SOC calibration on BMS, it simply show a behavior that your Client's battery has not seen 100% for few days.

BMS and SOC is an estimate, to get more accurate SOC you must have 100% charge at least every 2 days. So your SOC will be 99% accurate.

When charging and discharge LFP the capacity in and out is always different like 200AH in and 195AH out.. BMS will calculate this wrongly overtime and what you complained about will be their experience unless they get daily 100%.

The screen below shows Inverter already cut off. At 47V which we set as LVD.. but guess what? The BMS was still showing 19%.. BMS type is the popular JK BMS so?

because client is Off grid and solar radiation was not getting it to 100% as it supposed to.

Thanks for this chief... I want to believe you are 100% right.. I want to believe so.. lately because of the dust, he said they've not been getting to 100% before the sun goes off... Would advice we get more panels and also clean the already installed ones...

How many days do we need to run at 100% before the calibration would be reset pls...? And will it automatically correct it self back?

Thanks.

Dam5reey1:
On this issue, this has to do with SOC calibration on BMS, it simply show a behavior that your Client's battery has not seen 100% for few days.

BMS and SOC is an estimate, to get more accurate SOC you must have 100% charge at least every 2 days. So your SOC will be 99% accurate.

When charging and discharge LFP the capacity in and out is always different like 200AH in and 195AH out.. BMS will calculate this wrongly overtime and what you complained about will be their experience unless they get daily 100%.

The screen below shows Inverter already cut off. At 47V which we set as LVD.. but guess what? The BMS was still showing 19%.. BMS type is the popular JK BMS so?

because client is Off grid and solar radiation was not getting it to 100% as it supposed to.

Good morning fam,

Please as a matter of urgency, is there any smart solar installer/professional electrician in Ado-Ekiti who can attend to a troubleshooting for me this morning. The site is in Ado-Ekiti also and I will provide support remotely. Time expected to be spent should be 1-2 hours max.

Kindly WhatsApp please O813768924O
Thank you

Experienced ogas in the house, is it possible to combine 2 independent inverters (same brand & capacity) AC output without paralleling them and having them.communicate as one?

Good Morning..

Our product offerings include, but are not limited to, the following:

JA 580 Mono Solar Panels - Bifacial
5kWh/48V BYD/Leoch Lithium Batteries
11.7kWh/48V Leoch Lithium Batteries
5kWh High Voltage Deye Batteries
String Inverters-25KW/50KW/100KW/120 Goodwe brand
Hybrid Inverters 5KW - 48V - single phase - Voltronic
Hybrid Inverter 8 & 12kW - 48V - 3 phase - Deye
Hybrid Inverter 20 & 50kW - 160V-800V - 3 phase - high voltage - Deye

We believe that these high-quality products would be an excellent fit for your business. We would be thrilled to have you join our list of esteemed dealers and work together to expand the reach of these products.
Please let us know if you are interested in exploring this partnership further. We also sell Perkins, MTU and MWM Gas Generators ranging from 15kva-2500kva...

580w Panels = ₦150,000 EACH (10yrs Warranty and 25yrs Lifespan)

Haykay2001:
OK.. This big ones are always better..but i would advice you if you can raise some money go for Growatt or sern. Even felicity self.. Just to have better rest of mind...

Hmmm
Money wey go buy certain
Cc
Inverter
Battery
1 panel

Growatt no be beans o

obitobe:
Apply series configuration to the panels and make sure to use the right gauge of wire

Thank you so much Sir

Haba na baba mii...600k+ will get u one na

dollarnaira:
Hmmm
Money wey go buy certain
Cc
Inverter
Battery
1 panel

Growatt no be beans o

HeavenlyBang:
Cleaned the vents, temperatures are a lot more tolerable now.

I saw ur post where u loaded ur 3.3kw SRNE inverter to 2.6kw, my brother you enjoyed that privilege cos ur solar harvest is supporting the load with d major input else, that 3.3kw inverter can not perform at such level... it's something have tried bro, I also use 3.3kw high frequency inverter

Haykay2001:
Haba na baba mii...600k+ will get u one na

To you, is it affordable?
Where una dey see money sef?
The fact say client A fit afford am no mean say every other ones fit ooo.

Dam5reey1:
You are missing the Point, Once cell crosses below 3V dont expect them to have the same Voltages, or be balanced. That was what I showed in the picture. Can you proof me otherwise with a picture of cells in a 16s configuration that was discharged below 3V that have good and balanced cells.

The pack shows all cells below 3V with average these range, 2.9V 2.8, 2.7 and 2.6V.. is that an issue?

If he had cut off at wetin una dey recommend, like 3.1V he wont see any difference.

You are just contradicting yourself. If you are admitting that it's normal for cells to have different voltages below 3v, then there's no need in saying people ask you to cut low power at 3v to HIDE FLAWS. You are suggesting that these people are selling batteries with flaws and that's why they ask you to cut at 3v, even though you know that's not the case.

You really want to teach people things or give your opinions. That's really cool. But don't do it with languages or expressions that bring people down. You've sounded that way in many of your comments.

ask4bk:
You are just contradicting yourself. If you are admitting that it's normal for cells to have different voltages below 3v, then there's no need in saying people ask you to cut low power at 3v to HIDE FLAWS. You are suggesting that these people are selling batteries with flaws and that's why they ask you to cut at 3v, even though you know that's not the case.

You really want to teach people things or give your opinions. That's really cool. But don't do it with languages or expressions that bring people down. You've sounded that way in many of your comments.

Thats what you comprehend from my comment not my fault.
I have also bring down JK BMS on my last post for Showing the picture, Its alright.

Haykay2001:
Thanks for this chief... I want to believe you are 100% right.. I want to believe so.. lately because of the dust, he said they've not been getting to 100% before the sun goes off... Would advice we get more panels and also clean the already installed ones...

How many days do we need to run at 100% before the calibration would be reset pls...? And will it automatically correct it self back?

Thanks.

I don't know what BMS you are using, but I've a battery at home that uses a Bluetooth BMS (not the JK everyone is using now but the one from another brand they were using before). Charging to a point that I know it's actually full, the BMS still reads 65%. So I entered the BMS settings from my phone, and changed the 100% voltage mark by just a little (eg 4.5v to 4.55v) and it adjusted back to 100%.

Some BMS drift away in the SOC they show you, but it does not affect the ahs capacity reading used or voltage reading. Once you hit that low voltage mark, the battery will cut off even if your BMS is mistakenly reading 50% instead of 20 or 10%.

The above was the trick I used sha. If not, invest in buying a Coulomb meter that you'll connect to your battery. I heard those don't fail in their SOC calculations. I recently got one from China that connects to my WiFi sef and I see my battery state of charge from anywhere in the world.

But na una talk say better soup na money kill am na....

dollarnaira:

To you, is it affordable?
Where una dey see money sef?
The fact say client A fit afford am no mean say every other ones fit ooo.

actually, I don't know the type of BMS that sako use on their products. but am very sure it is not Bluetooth compatible. what I wanna be sure is, if we charge the battery to 100% back to back, will it correct the SOC readings back to what it use to be boss?

ask4bk:
I don't know what BMS you are using, but I've a battery at home that uses a Bluetooth BMS (not the JK everyone is using now but the one from another brand they were using before). Charging to a point that I know it's actually full, the BMS still reads 65%. So I entered the BMS settings from my phone, and changed the 100% voltage mark by just a little (eg 4.5v to 4.55v) and it adjusted back to 100%.

Some BMS drift away in the SOC they show you, but it does not affect the ahs capacity reading used or voltage reading. Once you hit that low voltage mark, the battery will cut off even if your BMS is mistakenly reading 50% instead of 20 or 10%.

The above was the trick I used sha. If not, invest in buying a Coulomb meter that you'll connect to your battery. I heard those don't fail in their SOC calculations. I recently got one from China that connects to my WiFi sef and I see my battery state of charge from anywhere in the world.

Edrizz:
I saw ur post where u loaded ur 3.3kw SRNE inverter to 2.6kw, my brother you enjoyed that privilege cos ur solar harvest is supporting the load with d major input else, that 3.3kw inverter can not perform at such level... it's something have tried bro, I also use 3.3kw high frequency inverter

Not sure what you mean. If it's converting electricity from DC to AC, then it's inverting. That's quite literally what an inverter does.

You seem to be assuming power from panels just flows directly to your load without the inverter doing anything?

If I try that same load at night when I'm on battery (I wouldn't either, it's well above the 0.5c typical lithium cells can handle) and the inverter trips off, it's not that the inverter can't handle the load; it's because the battery can't handle that discharge amperage.

Haykay2001:
actually, I don't know the type of BMS that sako use on their products. but am very sure it is not Bluetooth compatible. what I wanna be sure is, if we charge the battery to 100% back to back, will it correct the SOC readings back to what it use to be boss?

As you said, we don't know what BMS they use. So we can't be sure if it'll correct itself. But there's no harm in trying what was suggested.

Haykay2001:
But na una talk say better soup na money kill am na....

No be all soup o.
Sako 30v....

Edrizz:
I saw ur post where u loaded ur 3.3kw SRNE inverter to 2.6kw, my brother you enjoyed that privilege cos ur solar harvest is supporting the load with d major input else, that 3.3kw inverter can not perform at such level... it's something have tried bro, I also use 3.3kw high frequency inverter

even if battery is full?.

Abeg make una just leave me leave sako for now oo..body they hot ooo...

dollarnaira:
No be all soup o.
Sako 30v....

HeavenlyBang:
Not sure what you mean. If it's converting electricity from DC to AC, then it's inverting. That's quite literally what an inverter does.

You seem to be assuming power from panels just flows directly to your load without the inverter doing anything?

If I try that same load at night when I'm on battery (I wouldn't either, it's well above the 0.5c typical lithium cells can handle) and the inverter trips off, it's not that the inverter can't handle the load; it's because the battery can't handle that discharge amperage.

I don't believe that bro, I use 5.888kwh lfp battery with a Bluetooth enabled bms, the day i tried my 2.2kw electric kettle on d 3.3kw srne inverter while I was also monitoring the battery behaviour on my phone, I'm happy to tell u that the inverter shut down on d basis of an overload while on the bms app, there wasn't any warning sign

ask4bk:
Added to what everyone has said, your pic indicates the CC has considered your batteries as full, so that's why you are seeing only about 200w coming in from the panels which is basically what you are using in the house at the moment of the pic.
There's no problem with that.
Just try to follow the advice of getting a better battery like lithium so that you can comfortably charge with 1400wh seeing you are using a small 60a CC. You'll never get the full power of your panels too except you change to 100a cc. Even if you do, only lithium batteries can chest that high charge current and not tubular batteries

Okay thank you Sir

Please what size of lithium battery can I use comfortably with the 24v 5kva felicity stand alone inverter and the 4 pieces of 615w Jinko panel

Edrizz:
I don't believe that bro, I use 5.888kwh lfp battery with a Bluetooth enabled bms, the day i tried my 2.2kw electric kettle on d 3.3kw srne inverter while I was also monitoring the battery behaviour on my phone, I'm happy to tell u that the inverter shut down on d basis of an overload while on the bms app, there wasn't any warning sign

There's scientifically no difference between energy from panels and energy from battery. Both are in DC. Both need to be inverted to AC, which is what an inverter does.

If your inverter can handle a load from pv supply, it can handle the same load from a battery as long as the battery is capable of it.

In your case, if I had to guess, your battery just couldn't handle the load and voltage dropped below set cut-off leading to an inverter error/shut down.

What error code did you get on the inverter? I'm willing to bet it's an 01, 04, or 29.

Well I've loaded my 5kw HF inverter above 4kw on several occasions.

As at this night self it was loaded up to 4.9kw while boiling water with it.

Edrizz:
I saw ur post where u loaded ur 3.3kw SRNE inverter to 2.6kw, my brother you enjoyed that privilege cos ur solar harvest is supporting the load with d major input else, that 3.3kw inverter can not perform at such level... it's something have tried bro, I also use 3.3kw high frequency inverter

Compliant:
Okay thank you Sir

Please what size of lithium battery can I use comfortably with the 24v 5kva felicity stand alone inverter and the 4 pieces of 615w Jinko panel

Since you have a 24v inverter, your battery has to be 24v too. Most brands stop their 24v at around 5kwh. But with DIY assemblers in here they can do 10kwh or more for you with 24v.

If those panels produce 2400wh then you'll need 100a charge controller to get full juice out of your panels. Lower ones will bottleneck and limit what your panels produce into the lithium battery

Haykay2001:
Open am and buy distilled water put.. That all..
Enjoy ✌️

Thank you

This relay can help in low voltage cut off

uche393:
This relay can help in low voltage cut off

Nice Setup👍

Hi guys.

My felicity charge controller throws an “04” error-battery voltage is high. Even when the voltage of the battery is just 12.7V and not anywhere close to. 14.6V.

This has happened before, but I fixed it by disconnecting the entire CC connection and connecting it to another Controller (PWM), and after a while I reconnect back.

But this can be really stressful. Pleas what’s the solution?