₦airaland Forum

Na to run the earth yourself. When I moved from sachet inverter to hybrid, I had to do a new earth for my inverter and solar panel

bassdow:
I want to ask a question ?

How often do we ground Solar setUps especially when the apartment / compound has no earthing.

Have seen setups where the installer added AC and DC SPD but the bottom part was never connected to anything.

Let me ignore those that try to connect to the Earth wire of the house mains wiring.

osayuwamwen:
The first picture is luxsun inverter panel power recommendation found inside the box
The 2nd picture is the spec of the pv input on the body of the inverter
The 3rd is the 535 jinko vmp and imp 40.81v and 13.11A respectively
My question is can I use up to 9 panel of this 535watt on this luxun inverter will it not be above the manufacturer recommendation as again the first picture?

follow manufacturer recommendation

Gshems:
Na to run the earth yourself. When I moved from sachet inverter to hybrid, I had to do a new earth for my inverter and solar panel

Any tips on how to DIY earthing for inverter and solar panel?

Marykhay:
Thanks for this.
Pls I asked about balancing the cells. If I, first of all, connect all of them in parallel for balancing, how long will it take for the 12cells to balance?

Just get an external 2amps active balancer and add to the battery pack.

adimx:
Just get an external 2amps active balancer and add to the battery pack.

Chief thank you. Though I just confirmed earlier this morning that the imbalance in the system is not significant:

Battery 0 -> Battery 1 = 3.18V

Battery 1 -> Battery 2 = 3.18V

Battery 2 -> Battery 3= 3.18V

Battery 3 -> Battery 4 = 3.2V


So the problem is why is a 768Wh system not up to 400Wh from my capacity test? Are they fake cells? Or is there some other problem that I don’t know?

Hi everyone i need your suggestions

I have a 100ah lifep04 battery I bought from a friend.


Its diy.

I over discharged the battery overnight now its stuck at absorption mode even after charging with both ac-dc 10 amp 14.6v charger and mpt solar charge controller.

Whats the way forward ?

Maybe your Charging voltage is likely not giving a full charge.

Marykhay:
Chief thank you. Though I just confirmed earlier this morning that the imbalance in the system is not significant:

Battery 0 -> Battery 1 = 3.18V

Battery 1 -> Battery 2 = 3.18V

Battery 2 -> Battery 3= 3.18V

Battery 3 -> Battery 4 = 3.2V


So the problem is why is a 768Wh system not up to 400Wh from my capacity test? Are they fake cells? Or is there some other problem that I don’t know?

You still need it cos the batteries at some point will no longer be balanced.

adimx:
Maybe your Charging voltage is likely not giving a full charge.



You still need it cos the batteries at some point will no longer be balanced.

Charging voltage is set at 14.6V. And it beeps everyday on the inverter whenever it’s full.
However, it just doesn’t last up to 700Wh.

As for the balancer, can you kindly post a picture of your recommendation?

dollarnaira:
You too see wetin u mention.
Buy better thing and be free.

I used Ups/souer well for years.
However, don't use anyone of them for fridge or freezer as they will damage your compressor in the long run.

Try upgrade to better product and see wonders.

which one come dey manageable for fridge? I am guessing PSW inverters should do.

Tdoctor:
Any tips on how to DIY earthing for inverter and solar panel?

just buy earth rod 4meters.. Buy clip for the earth rod. But 2.5mm or 4mm depending on the size of your pocket. Drill the rod into the earth

Which inverter is this

overeighteen:
Hi everyone i need your suggestions

I have a 100ah lifep04 battery I bought from a friend.


Its diy.

I over discharged the battery overnight now its stuck at absorption mode even after charging with both ac-dc 10 amp 14.6v charger and mpt solar charge controller.

Whats the way forward ?

It should stop after a while

overeighteen:
Hi everyone i need your suggestions

I have a 100ah lifep04 battery I bought from a friend.


Its diy.

I over discharged the battery overnight now its stuck at absorption mode even after charging with both ac-dc 10 amp 14.6v charger and mpt solar charge controller.

Whats the way forward ?

Gshems:
Which inverter is this

Srne mppt charge controller.

This is what it looks like.

dollarnaira:
Exactly!
Why you dey hit points this morning bros.

My full copper Belgium Ethernet cable is just there looking for more pv to be added. Shey bi na here all us gather dey.

If you don't have sense don't use Inverter

E tun gbe mi debe sir


Abeg what's the guage of ur ethernet cable Senior man cos I think those cables used to come in 0point something mm²

Edrizz:
E tun gbe mi debe sir


Abeg what's the guage of ur ethernet cable Senior man cos I think those cables used to come in 0point something mm²

Am sorry,the information you seek is not for this group.

Marykhay:
Chief thank you. Though I just confirmed earlier this morning that the imbalance in the system is not significant:

Battery 0 -> Battery 1 = 3.18V

Battery 1 -> Battery 2 = 3.18V

Battery 2 -> Battery 3= 3.18V

Battery 3 -> Battery 4 = 3.2V


So the problem is why is a 768Wh system not up to 400Wh from my capacity test? Are they fake cells? Or is there some other problem that I don’t know?

Charge the battery fully to confirm if it is indeed balanced, you can't know at this state

Penuelseun:
Charge the battery fully to confirm if it is indeed balanced, you can't know at this state

Interesting.
Thanks I’ll do that tomorrow and get back.

Gshems:
just buy earth rod 4meters.. Buy clip for the earth rod. But 2.5mm or 4mm depending on the size of your pocket. Drill the rod into the earth

depending on capacity of the solar setUp, 2.5mm might be too small Oooo

capnies:
The mppt pv input determines the size and connection of your panel

The max mppt pv input is 450v that means look at the Voc of your panels if it 45v it means you can't connect 10 of those panels in series, but you can connect 5 in series and then connect them in parallel 5s2p.

Your mppt is 100A
If the inverter handles 48v use 48v settings and you use more panels for faster charging ⁷
For 48v you can use as much as 5800w panel provided the pv input of the setup does not get to 450v

If it is 24v then you can use like 2900w panel with total setup voltage less than 450v

If your panel is 525w you need just 6 in series for 24v and like 12 panels for 48v connected 6s2p

Congratulations

Your response come be like that oga way they always type epistle and usually end up saying nothing.


He uploaded the inverter specs sheet, and you are saying IF it can take 48V, and co.
And you suggested 5s2p? Make he add amp together again when specs sheet say 18A maximum PV input?


Spec sheet is clearly saying 24V and 18A max input, boss.
You miss am?

True. My setup is a small one. So 2.5mm was OK

bassdow:
depending on capacity of the solar setUp, 2.5mm might be too small Oooo

Inverter manufacturer fún state weytin they recommend but you no Wan follow am

bkuranga:
Your response come be like that oga way they always type epistle and usually end up saying nothing.


He uploaded the inverter specs sheet, and you are saying IF it can take 48V, and co.
And you suggested 5s2p? Make her add amp together again when specs sheet say 18A maximum PV input?


Spec sheet is clearly saying 24V and 18A max input, boss.
You miss am?

Happy Sunday my people. Thanks for all your inputs on my predicament so far.

Like someone advised that I should charge the battery full today and measure each cells of my system. Here are the results below. It is worth noting that immediately it hit the 14.6V mark on load it went down to 13.9V:

Battery 0 -> Battery 1 = 3.51V

Battery 1 -> Battery 2 = 3.49V

Battery 2 -> Battery 3= 3.49V

Battery 3 -> Battery 4 = 3..49V


The problem, like I mentioned earlier, was that the 768Wh 12.8V capacity does not even get to half of what it should be.

More Context:
I use 3 units of a 180Watts Panels running on a 60Amps PWM controller, and a Sachet inverter.

Further Context
In just about 10mins under a load of about 40Watts it drops down to 13.1V which I always feel is not normal, but hey, that’s why I’m here.

So pls house what could be wrong the system? Thanks in anticipation.

@dollarnaira
@penuelseun
@capnies
@adimx
@Mrreed
@valto
And co

These cells looks like salvaged cells. I think that's the issue. I'd advice you not to add more cells to it. If you get money, just buy new cells and diy a bigger capacity for yourself

Marykhay:
Happy Sunday my people. Thanks for all your inputs on my predicament so far.

Like someone advised that I should charge the battery full today and measure each cells of my system. Here are the results below. It is worth noting that immediately it hit the 14.6V mark on load it went down to 13.9V:

Battery 0 -> Battery 1 = 3.51V

Battery 1 -> Battery 2 = 3.49V

Battery 2 -> Battery 3= 3.49V

Battery 3 -> Battery 4 = 3..49V


The problem, like I mentioned earlier, was that the 768Wh 12.8V capacity does not even get to half of what it should be.

More Context:
I use 3 units of a 180Watts Panels running on a 60Amps PWM controller, and a Sachet inverter.

Further Context
In just about 10mins under a load of about 40Watts it drops down to 13.1V which I always feel is not normal, but hey, that’s why I’m here.

So pls house what could be wrong the system? Thanks in anticipation.

@dollarnaira
@penuelseun
@capnies
@adimx
@Mrreed
@valto

Gshems:
These cells looks like salvaged cells. I think that's the issue. I'd advise you not to add more cells to it. If you get money, just buy new cells and diy a bigger capacity for yourself

Exactly my thoughts. Thanks Boss.
😭😭😭😭😭😭😭

@Valto

Pls how much is your 20Ah 3.2V LifePo4 cells?

No vex chief, I am not that frequent on the forum.

Marykhay:
Good morning Chiefs,

I’m having a head start with my issue.

With regards to this system I posted earlier, these are the readings I got from the 4S configuration using the BMS connection the builder did:

Battery 0 -> Battery 1 = 3.18V

Battery 1 -> Battery 2 = 3.18V

Battery 2 -> Battery 3= 3.18V

Battery 3 -> Battery 4 = 3.2V

The problem, like I mentioned earlier, was that the 768Wh 12.8V capacity does not even get to half of what it should be. I guess this result is giving me a conclusion already.

But I need to hear from experienced builders:
@dollarnaira
@Mrreed (you no even dey reason my matter 😭)
@Valto (Senior man, at least say anything)
@capnies

Please what do you think is wrong with this system?
A. Weak or refurbished cells?
B. Unbalanced cells (I don’t know if the imbalance in the reading is negligible) causing the system to not reach its complete capacity?

For the pack to drop that fast, Battery capacity is gone.

Marykhay:
Happy Sunday my people. Thanks for all your inputs on my predicament so far.

Like someone advised that I should charge the battery full today and measure each cells of my system. Here are the results below. It is worth noting that immediately it hit the 14.6V mark on load it went down to 13.9V:

Battery 0 -> Battery 1 = 3.51V

Battery 1 -> Battery 2 = 3.49V

Battery 2 -> Battery 3= 3.49V

Battery 3 -> Battery 4 = 3..49V


The problem, like I mentioned earlier, was that the 768Wh 12.8V capacity does not even get to half of what it should be.

More Context:
I use 3 units of a 180Watts Panels running on a 60Amps PWM controller, and a Sachet inverter.

Further Context
In just about 10mins under a load of about 40Watts it drops down to 13.1V which I always feel is not normal, but hey, that’s why I’m here.

So pls house what could be wrong the system? Thanks in anticipation.

@dollarnaira
@penuelseun
@capnies
@adimx
@Mrreed
@valto
And co

Mrreed:
For the pack to drop that fast, Battery capacity is gone.

😭😭😭😭😭😭😭
Pls what’s the cheapest 12V 4S and small capacity like

50Ah system I.e 640Wh
40Ah system I.e 512Wh
60Ah system 1.e 768Wh

Coupled with no BMS or anything just the couples cells, you have? Since I have other requirements?

I have one 200ah quanta battery that is still working. How much can those who buy batteries buy it in Lagos?

Marykhay:
Charging voltage is set at 14.6V. And it beeps everyday on the inverter whenever it’s full.
However, it just doesn’t last up to 700Wh.

As for the balancer, can you kindly post a picture of your recommendation?

This a cheap one, but its ok for the size of your battery pack.

adimx:
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This a cheap one, but it’s ok for the size of your battery pack.

Thank you Chief.