NewStats: 3,262,585 , 8,177,603 topics. Date: Monday, 02 June 2025 at 09:32 PM 5318z

Dam5reey1:


Check fouani store for jinko

Its only the 615W that is available at 159600... and the cheaper than that of gennex

Techland has not given a yet

Go back and laugh in the installer's face. Get a good quality brand and use your hybrid to the fullest.

hayzhed:
An installer once told me that it better to use and external charge controller on an hybrid inverter with inbuilt charge controller. He claimed that it reduces the stress on the inverter. Please, how true is this claim?

Obnoxious2001:


The inverter side of the solar gen is no longer working?

How about the DC part are they working

3 sets I have dismantled somehow linked parts together including the inverters.

jonescosmos:
I will disassemble the battery when I receive it and boost charge the cells directly to wake up the BMS.

Of course I know this is going to be the what I will resort to but which client wants to see you doing such with something that haven't served for 48 hours? And that's the reason I just replace the both units so save myself the stress. Abuja to Abia is not a 15 minute journey ooo.

Out of pocket or client paid?

Drgreatone:

Out of pocket or client paid?

Not just those 2 model at all.. Will advice ppl to stay away from sako for now.. I have been having issues with their inverter and battery.. . One of the cell in their battery is very low.. Been asking for solution how to balance it but nothing is forth coming.. The inverter itself have been giving issues since the day of Instllation.. That was early Nov 2024 less than 3 mths ago.. Now battery is no longer balance. I was told i need a load to lower the high voltage, which i know nothing abt.. I dont build battery. For the last 3days now they stopped responding to messages.
I asked for their service center in Lagos so that i can send it for repair still no reply at all.. Items of less than 3mths and the customer is messaging me every single day.. Always on my neck.. 6.2kva paired with 10kwh battery.
Anyone with solution should kindly help me out abeg.. 🙏 🙏 🙏

jonescosmos:
Bro, toss this battery ASAP,

I had exactly the same issue with the same model of battery and SAKO 3kw 24V Inverter alongside 8pcs of 450W Jinko s, at nights the battery discharges like it's in a competition, The SAKO Inverter and Battery both refused to obey cut-off points and as such the battery discharges beyond DOD, I thought when day breaks and the sun comes up, the inverter will wake the battery up, but it didn't, client used GEN and NEPA to try to charge the battery, yet no power.

This horrible experience went on for days until I replaced the Inverter and Battery with Felicity IVEM 3KW and 5KWh Felicity Lithium Battery.
Now everything is up and running and the SAKO Battery and Inverter are both laying fallow in my garage.

Regrettably several other people have reported similar issues with SAKO products.

PLEASE STAY AWAY FROM THESE 2 MODELS OF SAKO BATTERY & INVERTER

Haykay2001:

Not just those 2 model at all.. Will advice ppl to stay away from sako for now.. I have been having issues with their inverter and battery.. . One of the cell in their battery is very low.. Been asking for solution how to balance it but nothing is forth coming.. The inverter itself have been giving issues since the day of Instllation.. That was early Nov 2024 less than 3 mths ago.. Now battery is no longer balance. I was told i need a load to lower the high voltage, which i know nothing abt.. I dont build battery. For the last 3days now they stopped responding to messages.
I asked for their service center in Lagos so that i can send it for repair still no reply at all.. Items of less than 3mths and the customer is messaging me every single day.. Always on my neck.. 6.2kva paired with 10kwh battery.
Anyone with solution should kindly help me out abeg.. 🙏 🙏 🙏

What is V1 to V4 readings? Batteries are out of balance. I wish their BMS has an active balance function. Also most of these batteries are welded, not bolted or screwed on, so servicing them is super hard without special tools.

Best bet is to return it to them.

Let them handle it. It's still under warranty.

Haykay2001:

Not just those 2 model at all.. Will advice ppl to stay away from sako for now.. I have been having issues with their inverter and battery.. . One of the cell in their battery is very low.. Been asking for solution how to balance it but nothing is forth coming.. The inverter itself have been giving issues since the day of Instllation.. That was early Nov 2024 less than 3 mths ago.. Now battery is no longer balance. I was told i need a load to lower the high voltage, which i know nothing abt.. I dont build battery. For the last 3days now they stopped responding to messages.
I asked for their service center in Lagos so that i can send it for repair still no reply at all.. Items of less than 3mths and the customer is messaging me every single day.. Always on my neck.. 6.2kva paired with 10kwh battery.
Anyone with solution should kindly help me out abeg.. 🙏 🙏 🙏

there office is at festac

Hv been asking them for their service center address in lag, no single reply.. Just so sad..

mctfopt:


What is V1 to V4 readings? Batteries are out of balance. I wish their BMS has an active balance function. Also most of these batteries are welded, not bolted or screwed on, so servicing them is super hard without special tools.

Best bet is to return it to them.

Let them handle it. It's still under warranty.

Thank alot chief.. Will try track them down.. Although i dont base in Lagos and i dont know where that festac is..

obinna37:
there office is at festac

This 1 to 4..

mctfopt:


What is V1 to V4 readings? Batteries are out of balance. I wish their BMS has an active balance function. Also most of these batteries are welded, not bolted or screwed on, so servicing them is super hard without special tools.

Best bet is to return it to them.

Let them handle it. It's still under warranty.

[
quote author=fuckboys post=133583216]Please I need to add this to my inverter setup, can it be done or is there an engineer here who can set it up for me, I want to be able to see my total load in real time.[/quote] please which site is this?

Haykay2001:
This 1 to 4..

This is roughly 2.8v each so not entirely out balance. They are not batch/match cells.
Something is wrong somewhere.

Active balance is far far far important than hard wired bms. Bms without active balance is as good as no bms.

Haykay2001:
Hv been asking them for their service center address in lag, no single reply.. Just so sad..

@sakopower help here

Haykay2001:
Hv been asking them for their service center address in lag, no single reply.. Just so sad..

Who have you bin communicating with? Did u use a low voltage disconnect on the inverter? Whats ur charging current too?
Battery has a 5yrs warranty so best is to return it and try to find cause and prevent a repeat

Hv been messaging this same guy.. I got the battery from him.. He connected me to some engineer and that was all.. Still no solution

mctfopt:


@sakopower help here

Same sako guy from NL here..
I used their lvc the guy gave me..

Drgreatone:

Who have you bin communicating with? Did u use a low voltage disconnect on the inverter? Whats ur charging current too?
Battery has a 5yrs warranty so best is to return it and try to find cause and prevent a repeat

Haykay2001:

Not just those 2 model at all.. Will advice ppl to stay away from sako for now.. I have been having issues with their inverter and battery.. . One of the cell in their battery is very low.. Been asking for solution how to balance it but nothing is forth coming.. The inverter itself have been giving issues since the day of Instllation.. That was early Nov 2024 less than 3 mths ago.. Now battery is no longer balance. I was told i need a load to lower the high voltage, which i know nothing abt.. I dont build battery. For the last 3days now they stopped responding to messages.
I asked for their service center in Lagos so that i can send it for repair still no reply at all.. Items of less than 3mths and the customer is messaging me every single day.. Always on my neck.. 6.2kva paired with 10kwh battery.
Anyone with solution should kindly help me out abeg.. 🙏 🙏 🙏

Wait, you have 2.8V to 2.6 average are normal... You cannot no have good top balance and good bottom balanced pack. That 0.300 difference is a result of minor capacity difference which can be as low as 0.5AH less than 1AH

Not representing Sako, but my own opinion and based on how cells behaves at this Low end of the curve. Your cut off should be set to 3.0-2.9 most installer dont know lithium batteries yet.

Going below 2.9V is not proper way to set cut off.

dollarnaira:


This is roughly 2.8v each so not entirely out balance. They are not batch/match cells.
Something is wrong somewhere.

Active balance is far far far important than hard wired bms. Bms without active balance is as good as no bms.

Active balancing at 2.8V is not ideal.. balancing is recommended at 3.4 or higher.

If you activate balancer at 2.8V it will affect top balance and will have to balance again at the top.

Below 2.9V all cells are low, 2.9 to 2.6 have similar capacity

1pcs of 10kwh felicity lithium battery and 100 metres of 6mm dual core solar cable ready for delivery to Gbagada.

To place your order, call/whatsapp me on 08168986461

compunigeria:


This is likely due to the UnderVoltage Protection Recovery by the BMS after the battery is left idle for some time.


Have you or any other s here experienced signal interference with any SAKO hybrid inverter?

( E.g DSTV signal dropping, phone screen misbehaving/ acting weird and laptop touchpad not working while charging the device)

Has anyone experience issues like these with any other hybrid inverters pls.

My brother, have been battling same issue in one of installations, I was dumbfounded listening to those problems u shared from my client cos i never had or seen such scenario before until I visited the site n saw things myself, what I discovered was that the sako inverter interference n d other problems u shared above are due to the fact that u connected the inverter to d earth... I ed their n the person said I should connect only the s to the earth n when I further asked him that how do I protect the inverter from lightening through d grid, he responded that such is a natural disaster n can't be prevented ... stay away from Sako products n prioritise ur mental health

@ Haykay2001
For reference, this was how a pack of cells I got from your favorite seller here looks like at the buttom.

Dam5reey1:


Active balancing at 2.8V is not ideal.. balancing is recommended at 3.4 or higher.

If you activate balancer at 2.8V it will affect top balance and will have to balance again at the top.

Only saying that d difference is not that bad.
Installing active balancer would have prevented such from onset.

Active Balancers are too precious to be avoided in all LifePO4.

dollarnaira:


Only saying that d difference is not that bad.
Installing active balancer would have prevented such from onset.

Active Balancers are too precious to be avoided in all LifePO4.

You need to understand the concept of cell balancing..

You can not have Good top balance and Good bottom balanced at the same time, unless your cells are matched to 100%.

Its either you have Good balance at top or good balance at bottom for an average cell.

Turning on balancing at below 3V is not going to solve anything. It will balance at the Bottom, and also balance at to top, in essence there is no gain.

Edrizz:



My brother, have been battling same issue in one of installations, I was dumbfounded listening to those problems u shared from my client cos i never had or seen such scenario before until I visited the site n saw things myself, what I discovered was that the sako inverter interference n d other problems u shared above are due to the fact that u connected the inverter to d earth... I ed their n the person said I should connect only the s to the earth n when I further asked him that how do I protect the inverter from lightening through d grid, he responded that such is a natural disaster n can't be prevented ... stay away from Sako products n prioritise ur mental health

The Earthing thing was my conclusion.

but since my last comment about MPPT efficiency, I got some responses that assumed i was making things up, hence I didn't respond to the interference issue.

This plague applies to those 30V - 400V MPPT as it only happens when the Solar input is on.

No Earthing you are good 😊, But.....

Dam5reey1:


You need to understand the concept of cell balancing..

You can not have Good top balance and Good bottom balanced at the same time, unless your cells are matched to 100%.

Its either you have Good balance at top or good balance at bottom for an average cell.

Turning on balancing at below 3V is not going to solve anything. It will balance at the Bottom, and also balance at to top, in essence there is no gain.

Wait oo
1st is top balance
2nd active balance to maintain it incase of derail.

We dey learn everytime.

So wat is your point?
I fit still learn new tin.

N.B: Am not saying balancer is needed for derailed battery not well top BALANCED from initial.

Na me pay ooo. my brother I hope you read the part where I said the setup didn't last upto 48 hours. Which Client go wan listen to your excuses and troubleshooting in such instance? I jejely respected myself and bought another Inverter and Battery and installed for them ooo.
It's a painful reality ooo. That's why some products are so popular while some will never make it past Alaba market. I am someone who never installs anything lower than Growatt and Felicity for clients. After hearing lots of noises about SRNE, SAKO, SMS, etc etc, I decided to try out the SAKO due to client's low budget.
See how the whole thing ended up. This Installation almost messed up my Xmas ooo. Anyway sha, Lesson learned in hard way.

Any client that wants a low budget installation henceforth go buy the devices themselves, my own na to install am for am with plenty of caveats.

Drgreatone:

Out of pocket or client paid?

jonescosmos:
Na me pay ooo. my brother.
It's a painful reality ooo. That's why some products are so popular while some will never make it past Alaba market. I am someone who never installs anything lower than Growatt and Felicity for clients. After hearing lots of noises about SRNE, SAKO, SMS, etc etc, I decided to try out the SAKO due to client's low budget.
See how the whole thing ended up. This Installation almost messed up my Xmas ooo. Anyway sha, Lesson learned in hard way.

Any client that wants a low budget installation henceforth go buy the devices themselves, my own na to install am for am with plenty of caveats.

Lessons learnt boss, Can't even trust any seller again.
So much cutting corners here and there.

Lost trust to extent I decided to build LFP batteries myself, use my own BMS tested and trusted settings, which gave me more peace of mind.

hayzhed:
An installer once told me that it better to use and external charge controller on an hybrid inverter with inbuilt charge controller. He claimed that it reduces the stress on the inverter. Please, how true is this claim?

I agree with him. In fact that is what I'm doing. It is all part of the principle of using your appliances well below the specifications with the aim of prolonging their lives.

No, I will not spend extra money to pay for expensive charge controller if I have a quality hybrid that I know can do the job. But for someone like me who started my solar journey long ago before hybrid inverters became popular, I found it more convenient and better for my equipment to continue to use my separate charge controllers rather than discarding or selling them off. My hybrid inverter has never been connected to solar s and continues to stand by as backup if anything happens to my charge controllers.

The other reason why you may want to stick to a separate charge controller is if you have a large number of s that may exceed your hybrid inverter's solar input. I have 10KW s for example, and my hybrid inverter has about 110A MPPT which is less than the maximum I could get from my s.

Also if your built-in Charge controller is PWM, it is better to get separate MPPT Controller.

Dam5reey:
@ Haykay2001
For reference, this was how a pack of cells I got from your favorite seller here looks like at the buttom.

u de fear 2 call names young man

brightk:
u de fear 2 call names young man

they already know themselves.